1 January 1957 - Ghoshi, Japan -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed.

1 January 1957 - Hiroshima, Japan -   Procession of objects. Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Many objects were observed.

1 January 1957 - Yokohama, Japan -   (Ambiguous location - more than one place with this name).

1 January 1957 04:00 - Rissington, New Zealand -   Huge glowing cigar hovered low over horizon, shot beams of light about.

1 January 1957 04:30 - Savannah, Georgia, USA -   One disc was observed for over one minute.

1 January 1957 06:30 - Montevideo, Minnesota, USA -   One object was observed by one male witness (Strand).

1 January 1957 15:00 - Russell (Convair), Kansas, USA -   A meteor-like object was observed. One object was observed for a few minutes (Snyder). Explanation: Meteor.

1 January 1957 15:30 - St Helens, UK -   A flying disc was observed. One disc was observed in cloudy weather by ten experienced witnesses (Rhodes).

1 January 1957 20:00 - Dayton, Ohio, USA -   A star-like object was observed and photographed. One object was observed (Quik). Explanation: Star.

1 January 1957 23:16 - Minneapolis Hwy169, Minnesota, USA -   One object, about 3 inches across, was observed by one witness on a highway (Scrimshaw, R). Explanation: Meteor.

1 January 1957 23:50 - Ashby, Minnesota, USA -   One object was observed by several witnesses for two hours.

2 January 1957 18:00 - San Francisco, California , USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by several witnesses. Explanation: Meteor.

2 January 1957 19:50 - Yuma, Arizona , USA -   Unidentified but otherwise conventional objects were sighted. Three objects were observed by a male witness for over five minutes. Explanation: Aircraft.

2 January 1957 21:00 - West Melton, UK -   Domed disc spins and rises, reverses course, passes overhead.

3 January 1957 - La Rochelle, France -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by one witness. Explanation: Re-entry.

3 January 1957 Before 1000 - York, Skircoat Green, UK -   Unusual objects were sighted, that had unconventional appearance and performance. Several objects were observed by two male children (Weeks).

3 January 1957 18:25 - Holtville, California , USA -   Unidentified but otherwise conventional objects were sighted. Two objects were observed for five minutes (Kelly). Explanation: Aircraft.

3 January 1957 20:22 - Travers-Marengo, Germany -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object, about 1 foot across, was observed by military witnesses for over one minute.

3 January 1957 20:22 - Marengo, Algeria -   French Air Force incident.

4 January 1957 07:30 - Wadena, Minnesota, USA -   Balloon-like object observed. One ball was observed for 20 minutes (Gibbs). Explanation: Balloon.

4 January 1957 18:23 - Holtville, California , USA -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Explanation: Aircraft.

5 January 1957 - Williston, North Dakota, USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object, twice the size of the moon, was observed by two male witnesses (Wagenman).

5 January 1957 00:00 - Minneapolis, Minnesota, USA -   Balloon-like object observed. One ball was observed for 90 minutes (Anderson). Explanation: Balloon.

In early January 1957 10:00 - Halifax, UK -   Several objects were observed by one witness in a swamp.

6 January 1957 - Rissington, New Zealand -   Physiological effects.

7 January 1957 15:20 - Serezin.Tour, France -   Cigar-shaped objects were observed. Three cigar-shaped objects were observed. Explanation: Planet.

8 January 1957 08:45 - St-Trojan, France -   A daytime disc was reported.

8 January 1957 11:00 - Napier, New Zealand -   Dark disc to the south under white clouds, two sharp turns, rapidly to the east. Red fireball seen at 23:00.

9 January 1957 19:00 - Miami, Florida, USA -   An unidentified but otherwise conventional object was sighted. One object was observed for 30 minutes (Caput). Explanation: Star.

9 January 1957 23:39 - Halifax Saville Park, UK -   Hovering flying discs were observed. Two discs were observed by two witnesses at a park for over one minute (Hole).

9 January 1957 23:40 - Halifax, Nova Scotia, Canada -   Nocturnal lights were reported.

10 January 1957 14:00 - Mexborough, UK -   One object was observed by two female experienced witnesses (Oxley).

10 January 1957 16:35 - Stafford, UK -   Cigar moving to the southwest, left orange trail behind it twice its own length. When jet plane approached, it rose vertically and vanished into the sky. Explanation: Reflection.

11 January 1957 Dusk - Brazil, Indiana, USA -   Photo. Explanation: Coincidenc.

11 January 1957 20:30 - Ashford, UK -   Nocturnal lights were reported.

11 January 1957 20:30 - Waubay, South Dakota, USA -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. One object was observed by four witnesses at a lake (Lyon). A noise was heard.

12 January 1957 11:25 - Tempe, Arizona , USA -   Balloon-like object observed. One ball was observed by one witness for five minutes (Baker). Explanation: Balloon.

14 January 1957 05:00 - Las Vegas, Nevada, USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by two male witnesses (Johnson).

15 January 1957 08:00 - Balfour, New Zealand -   An oval, fluorescent craft, about 40 meters in diameter

15 January 1957 15:50 - Falkirk, UK -   A flying disc was observed. One disc was observed by five witnesses.

16 January 1957 14:20 - Random Lake, Wisconsin, USA -   Balloon-like objects observed. Two balls were observed for five minutes (Sepstead). Explanation: Balloon.

16 January 1957 20:00 - Fort Worth Nw, Texas, USA -   B-25 Pilots/Crew incident.

16 January 1957 20:00 - Lubbock, Texas, USA -   USAF crews of two B-25's saw a round white object make rapid maneuvers, effects on radio and compass.

16 January 1957 21:22 - Laguna, California , USA -   GOC incident. Explanation: Star.

16 January 1957 23:30 - Glenwood Springs, Colorado , USA -   Balloon-like object observed. One ball was observed for eight minutes (Waller). Explanation: Balloon.

17 January 1957 10:47 - Yokohama, Japan -   Photo. (Ambiguous location - more than one place with this name).

17 January 1957 18:15 - Laguna, California , USA -   GOC incident. Explanation: Aircraft.

17 January 1957 19:45 - Yelmbridge, UK -   A flying disc was observed. One disc was observed by two witnesses.

17 January 1957 23:00 - Chippenham, UK -   A flying disc was observed. One disc was observed by two witnesses (Todd).

18 January 1957 10:00 - Campo Quijano, El Cerro Negro, Argentina -   An unusual object was sighted, that had unconventional appearance and performance. One object was observed by numerous witnesses at a mountain for seven hours.

18 January 1957 19:45 - Franconia, Virginia , USA -   An object, later identified as the planet Venus, was observed. One object was observed for 135 minutes (Smith). Explanation: Venus.

19 January 1957 04:00 - Odanah, Wisconsin, USA -   One object was observed by one witness.

19 January 1957 19:58 - Longmont, Colorado , USA -   A meteor-like object was observed. One object was observed (Dayhoff). Explanation: Meteor.

21 January 1957 - Milan, Iowa, USA -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. An unidentifiable object was observed at close range and caused physical effects.

21 January 1957 06:30 - Garvin, Minnesota, USA -   One object was observed by four witnesses.

21 January 1957 10:45 - Asmara, Ethiopia -   Flying discs were observed. Two discs were observed by five military witnesses (Woodruff).

21 January 1957 10:50 - Arlington, Virginia , USA -   Army Intelligence incident.

21 January 1957 20:30 - South Knoxville, Tennessee, USA -   A triangular object was observed. One triangle was observed by one male witness (Williams, A).

21 January 1957 22:30 - Bristol, UK -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by numerous witnesses (Anstee).

21 January 1957 22:30 - Downend, UK -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed.

21 January 1957 22:45 - Bruneck, Italy -   Nocturnal lights were reported.

22 January 1957 00:29 - Glenwood, Iowa, USA -   A meteor-like object was observed. One object was observed for 30 seconds (Thompson). Explanation: Meteor.

22 January 1957 20:10 - Mansfield Rock Hill, UK -   Objects were sighted that had an appearance and performance beyond the capability of known earthly aircraft. Three objects were observed by one experienced male witness (Charles).

23 January 1957 - Weenen, South Africa -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed.

23 January 1957 00:19 - Grindleford Yorks, UK -   A fireball was observed. One fireball was observed (Rodgers). Explanation: Meteor.

23 January 1957 06:30 - Garvin, Minnesota, USA -   One object was observed.

24 January 1957 - Curtis Bay, Maryland, USA -   An unidentified but otherwise conventional object was sighted. One object was observed by three male witnesses at a factory (Ochlech).

24 January 1957 - Cincinnati, Ohio, USA -   Nocturnal lights were observed by a male witness (Pope, B).

24 January 1957 06:30 - Spring Grove, Ohio, USA -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Four objects were observed by two witnesses (Pope).

24 January 1957 Around 1100 - Chippenham, UK -   An unidentified but otherwise conventional object was sighted. One object was observed by two experienced witnesses for 18 seconds (Todd).

In late January 1957 - Chippenham, UK -   Hovered.

25 January 1957 - Knoxville, Tennessee, USA -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. An unidentifiable object was observed at close range and caused physical effects.

25 January 1957 02:00 - Southampton, UK -   Unusual objects were sighted, that had unconventional appearance and performance. More than five objects were observed by three female experienced witnesses at a building for two hours (Hurcoop).

26 January 1957 21:20 - Coral Gables, Florida, USA -   Dull red meteor shoots upward, stops suddenly, modest speed possibly too slow to be meteor.

26 January 1957 22:00 - Lac Anima, Ontario, Canada -   Hovered.

27 January 1957 07:25 - Hallenberg, Germany -   A meteor-like object was observed. One object was observed for six seconds. Explanation: Meteor.

27 January 1957 19:59 - Glendora, California , USA -   Flying discs were observed. Two amber discs were observed by three witnesses (Childers). A noise was heard.

In February 1957 - Redding Hwy53, Connecticut, USA -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. An unidentifiable object was observed at close range on a highway (Salter).

In February 1957 21:00 - High Point, North Carolina, USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object, the size of a star, was observed by more than one male witness (Sealey). Explanation: Satellite.

In February 1957 Night - Cambridge, UK -   Many reports of saucer with green glowing base. 500 feet altitude.

2 February 1957 05:00 - Presidio, California , USA -   An object was tracked by radar. One object was observed by military witnesses for over four minutes. Explanation: Aircraft.

3 February 1957 18:45 - New Orleans, Louisiana, USA -   Meteor-like objects were observed. Two objects were observed for six seconds (Brewer). Explanation: Meteor.

3 February 1957 22:00 - Georgetown, Connecticut, USA -   Woman driving in desolate area encountered 5m long cigar close to ground, left side of road. Had several portholes, .5m diameter, lit by yellow light. Shadows moved behind. It took off straight up.

4 February 1957 00:45 - Utah, USA -   One object was observed for six seconds (Jeska).

4 February 1957 Night - Bombay, India -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by two witnesses for ten minutes (Dalvi).

7 February 1957 03:53 - Las Cruces Afs, New Mexico, USA -   Radar. Explanation: Mirage.

8 February 1957 Daytime - Georgetown, Massachusetts, USA -   FBI incident.

8 February 1957 20:50 - Randolph AFB, Texas, USA -   A meteor-like object was observed. One object was observed by a male military witness at an airfield for six seconds. Explanation: Meteor.

8 February 1957 22:15 - Eastney, UK -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by one female witness (King).

9 February 1957 01:00 - Philadelphia, Pennsylvania, USA -   Falling leaf motion, in reverse. Ovoid swings up higher in sky, speeds up, repeats sequence several times. Light on top of object.

9 February 1957 22:00 - Georgetown, Connecticut, USA -   A cigar-shaped object about five meters long, showing several portholes, hovering close to the ground

10 February 1957 22:51 - Bismarck S50M, North Dakota, USA -   Balloon-like object observed. One ball was observed for 30 minutes (Dosch). Explanation: Balloon.

11 February 1957 - Mansfield, UK -   (Ambiguous location - more than one place with this name).

11 February 1957 07:30 - Lancaster, Pennsylvania, USA -   An unidentified but otherwise conventional object was sighted. One object was observed for five minutes.

11 February 1957 11:50 - Honolulu, Hawaii, USA -   Luminous disc enters clouds, rises above it accompanied with second smaller object, both objects maneuver about.

11 February 1957 22:20 - Redlands, California , USA -   Six objects were observed by two witnesses.

12 February 1957 - Mansfield, UK -   Hovering objects were observed. Five objects were observed.

12 February 1957 - Antofagasta, Chile -   A green fireball was observed. One green fireball was observed. Explanation: Meteor.

12 February 1957 08:13 - Valley Forge, Pennsylvania, USA -   An unidentified but otherwise conventional object was sighted. One object was observed for over 18 minutes (Smith). Explanation: Balloon.

12 February 1957 16:20 - Floyd Bennett Nas, New York, USA -   Photo, evaluated as balloon. Explanation: Balloon.

12 February 1957 21:00 - Ottumwa S10M, Iowa, USA -   Balloon-like object observed. One ball was observed for over five minutes (Barker). Explanation: Balloon.

13 February 1957 02:30 - Lincoln AFB, Nebraska, USA -   Two radars and USAF ground observers tracked several supersonic targets, flying behind an airliner, that broke apart, hovered, and sped away. Explanation: Balloon.

13 February 1957 04:40 - Tierra Amarilla Afs, New Mexico, USA -   Radar/visual confirmation.

13 February 1957 18:30 - Lockheed Plant, California , USA -   Hovered.

13 February 1957 18:45 - Burbank, California , USA -   Three bright discs at 18,000 feet altitude. Search sky with light beam. Rise vertically. Explanation: Meteor.

13 February 1957 19:20 - Yuma, Arizona , USA -   A star-like object was observed and photographed. One object was observed by a male witness for 90 minutes (McMorris). Explanation: Star.

13 February 1957 20:00 - Marrero, Louisiana, USA -   Objects were tracked by radar and sighted visually. Three objects were observed by a male military witness for 100 minutes (Martin). Explanation: Aircraft.

13 February 1957 21:40 - Placerville, California , USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One black disc was observed by one experienced male witness briefly (Papina).

14 February 1957 01:05 - Stead AFB, Nevada, USA -   A star-like object was observed and photographed. One object was observed by one witness at an airfield for two hours (Mil). Explanation: Star.

14 February 1957 03:14 - Pasadena, California , USA -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. One object was observed by several witnesses (Wells).

14 February 1957 19:10 - Kittery Point, Maine, USA -   A green fireball was observed. One green green fireball was observed for a few minutes (Gunderson). Explanation: Meteor.

14 February 1957 19:10 - East Nassau, New York, USA -   A meteor-like object was observed. One object was observed for a few minutes (Goriup). Explanation: Meteor.

15 February 1957 09:30 - Poligne, France -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Nine objects were observed.

15 February 1957 11:40 - Portsmouth, UK -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by three male children (Bolt).

15 February 1957 19:00 - Mamaroneck, New York, USA -   Brilliant silent ovoid swings north and south slowly. two Nocturnal light exit in one direction, two more Nocturnal light exit in opposite direction. Ovoid shot straight up.

15 February 1957 21:25 - Tuxedo, New York, USA -   Balloon-like object observed. One ball was observed for over 13 minutes (Degrau). Explanation: Balloon.

15 February 1957 22:00 - Wardle, UK -   A hovering object was observed. One object was observed.

15 February 1957 22:00 - Wardle, UK -   An unusual object was sighted, that had unconventional appearance and performance. One object was observed.

17 February 1957 21:56 - Albany, Oregon, USA -   Two objects were observed by one male witness (Henderson).

20 February 1957 18:30 - Joliet, Illinois, USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object, the size of a star, was observed by two witnesses (Donnelly).

21 February 1957 17:30 - Longreach, Queensland, Australia -   A daytime disc was observed by three witnesses.

21 February 1957 21:07 - Yokohama, Japan -   Photo. (Ambiguous location - more than one place with this name).

22 February 1957 16:30 - Lake Stevens, Washington, USA -   Balloon-like object observed. One ball, about 10 feet across, was observed at a lake (Carlson). Explanation: Balloon.

27 February 1957 21:45 - Castle AFB, California , USA -   Nine radar targets. Explanation: Mirage.

27 February 1957 24:00 - Pleneuf, France -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Nine objects were observed.

In March 1957 - Brazil -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed.

In March 1957 - Elba Island, Italy -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed on the shore.

In March 1957 - San Francisco, California , USA -   A daytime disc was reported (Langford).

In March 1957 10:00 - West Bolton, Vermont, USA -   One object was observed by one witness for over 15 minutes.

In March 1957 Daytime - Sebring N, Florida, USA -   A daylight disc was observed by a female witness (Hogan, E).

28 February 1957 13:30 - Darmstadt, Germany -   Photo

28 February 1957 18:07 - Ridgeway, UK -   A flying disc was observed. One disc was observed by one witness (Fooks).

28 February 1957 18:07 - Weymouth, UK -   A flying disc was observed. One disc was observed by one female witness, an experienced observor (Newman).

1 March 1957 - Attleboro, Massachusetts, USA -   A daylight disc was observed by a male witness (Crisileo).

2 March 1957 00:00 - Rapid City, South Dakota, USA -   Nocturnal lights were observed by military witnesses for 30 minutes.

2 March 1957 08:20 - Kyoto, Japan -   Small metallic disc flies over gardens at low altitude. Fast exit at sharp angle upward.

3 March 1957 12:47 - Herington, Kansas, USA -   An unidentified but otherwise conventional object was sighted. One object was observed (Jeffus).

4 March 1957 19:16 - Oberrieden Horgen, Switzerland -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed.

4 March 1957 20:30 - Zurich, Switzerland -   Procession of objects. Flying discs were observed. Many discs were observed by one experienced male witness (Gessner; Montandon).

4 March 1957 21:30 - Erie, Pennsylvania, USA -   Balloon-like object observed. One ball was observed by a male witness for over 25 minutes. Explanation: Balloon.

5 March 1957 11:15 - Amriswil, Switzerland -   A daytime disc was reported (Muessli).

5 March 1957 Night - Uriman, Venezuela -   Nocturnal lights were reported.

6 March 1957 14:00 - Great Meadows W, New Jersey, USA -   Shooting Preserve Owner incident.

6 March 1957 14:00 - Great Meadows-Hope, New Jersey, USA -   White derby-hat-shaped object hovering low over a field

8 March 1957 - Hempstead, New York, USA -   Nocturnal lights were observed by a male witness (Castor, R).

8 March 1957 21:45 - Pasadena, Texas, USA -   Tennessee Gas Company DC-3 incident.

8 March 1957 23:00 - Baudette, Minnesota, USA -   A pilot saw a circular object flying against the wind.

9 March 1957 00:40 - San Juan, Puerto Rico, USA -   Pan Am 215-A incident.

9 March 1957 01:40 - Shaw AFB, South Carolina, USA -   USAF C-47 incident.

9 March 1957 01:45 - Columbia Sse15M, South Carolina, USA -   Airliner Crews incident. Explanation: Meteor.

9 March 1957 02:00 - Savannah River Aec, South Carolina, USA -   One object was observed by one witness near a nuclear test site for over one minute (Armstead). Explanation: Balloon.

9 March 1957 03:33 - Jacksonville Ne350, Florida, USA -   A meteor-like object was observed. One object was observed by eight male experienced witnesses on the ocean for a few seconds (Van Winkle). Explanation: Meteor.

9 March 1957 03:33 - Jacksonville, Fl, Atlantic -   8 reports of same UFO. Explanation: Meteor.

9 March 1957 16:15 - Colorado Springs, Colorado , USA -   Two objects were observed for over 75 minutes (Cambell). Explanation: Debris.

9 March 1957 18:30 - Harbor Avon, North Carolina, USA -   One object was observed on the ocean for a few minutes (Fisherman).

9 March 1957 18:55 - Laporte, Minnesota, USA -   Balloon-like object observed. One ball was observed for over 25 minutes (Farmer). Explanation: Balloon.

9 March 1957 20:00 - Baudette, Tx, Minnesota, USA -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. One object was observed.

9 March 1957 22:00 - Gudme Fuenen, Denmark -   Nocturnal lights were reported.

9 March 1957 23:00 - Chambon.Lignon, France -   Nocturnal lights were reported.

10 March 1957 - Houston Dc3, Texas, USA -   An object was observed from a car. One object was observed by one experienced male witness (Hancock).

10 March 1957 16:00 - Jacksonville, Florida, USA -   Two children watched white disk in vertical position shoot rapidly to the south at a terrific speed. Explanation: Aircraft.

11 March 1957 18:40 - Basel, Switzerland -   A flying disc was observed. One disc was observed by three witnesses (Schmidiger).

12 March 1957 01:30 - Sulzbach, Germany -   Nocturnal lights were reported (Rall).

13 March 1957 17:50 - Scarborough, East Pier, UK -   Silver cigarette-shaped cylinder floats by.

14 March 1957 22:55 - Galveston, Texas, USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by one witness.

14 March 1957 22:55 - Craig AFB, Alabama, USA -   One object was observed by several witnesses.

14 March 1957 23:08 - Lake Charles Afb, Louisiana, USA -   One object was observed by two male experienced military witnesses at an airfield (Leroy).

15 March 1957 - New Orleans, Louisiana, USA -   Trace remnants

In mid-March 1957 Afternoon - Los Angeles, California , USA -   There were about 5-7 saucers, gray color in a V shape form, a mass sighting of about 200 or more people.

15 March 1957 20:30 - Belleview, Florida, USA -   An unidentified but otherwise conventional object was sighted. One object was observed for over an hour (Wallace). Explanation: Star.

17 March 1957 - Spain, Spain -   An object was observed. Traces found. An unidentifiable object and its occupants were observed at close range. Explanation: Hoax.

17 March 1957 - Palmer, Pioneer Peak, Alaska, USA -   A meteor-like object was observed. One object was observed by several witnesses at a mountain. Explanation: Meteor.

17 March 1957 16:22 - Fontana, California , USA -   Balloon-like object observed. One ball was observed for over three minutes. Explanation: Balloon.

17 March 1957 20:00 - Belleview, Florida, USA -   Meteor-like objects were observed. More than eight objects were observed for six seconds. Explanation: Meteor.

18 March 1957 21:00 - Fattigau, Germany -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed (Maier).

19 March 1957 - Ohio, USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object, about 600 feet across, was observed.

19 March 1957 18:52 - Oakland, California , USA -   Balloon-like object observed. One ball was observed (Saunders). Explanation: Balloon.

20 March 1957 20:45 - Charlotte, North Carolina, USA -   Objects were observed. Traces found. Five objects were observed by two witnesses, a married couple, for five minutes (Brown).

21 March 1957 23:05 - Highland, California , USA -   An unidentified but otherwise conventional object was sighted. One object was observed for over ten minutes (Collions). Explanation: Balloon.

22 March 1957 18:00 - Center Sandwich, New Hampshire, USA -   An unidentified but otherwise conventional object was sighted. One object was observed by 50 witnesses for over 40 minutes. Explanation: Balloon.

22 March 1957 18:00 - Dayton, Ohio, USA -   An unidentified but otherwise conventional object was sighted. One object was observed by three witnesses for 30 minutes. Explanation: Balloon.

22 March 1957 23:15 - Oxnard AFB, California , USA -   USN incident. Fighters scrambled to intercept radar returns after many witnesses in the Los Angeles basin report maneuvering lights. Explanation: Star.

23 March 1957 - Lago.Maracaibo, Venezuela -   Landed remotely. Explanation: Meteor.

23 March 1957 - Fayetteville, Tennessee, USA -   A flying disc was observed. One disc was observed by more than two witnesses.

23 March 1957 00:22 - Oxnard AFB, California , USA -   GOC incident.

23 March 1957 18:00 - Puyallup, Washington, USA -   Huge fireball rises up from behind barn. two strong beams of light. Rises vertically, then rapidly to the north. Explanation: Meteor.

23 March 1957 21:55 - Downey, California , USA -   CAA incident. Explanation: Aircraft.

23 March 1957 22:00 - Clinton County AFB, Ohio, USA -   A meteor-like object was observed. One object was observed by military witnesses at an airfield for six seconds (Trnovec). Explanation: Meteor.

23 March 1957 22:08 - Dayton, Ohio, USA -   A meteor-like object was observed. One object was observed for a few seconds (McDonald). Explanation: Meteor.

23 March 1957 23:50 - Long Beach, California , USA -   CAA incident. Explanation: Malfunct.

24 March 1957 02:47 - Oxnard, California , USA -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. One object was observed by two male witnesses at an airfield briefly (Atkinson).

In late March 1957 - Blaisdell Ne10M, North Dakota, USA -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. One object, about 5 feet across, was observed (Schneider).

25 March 1957 19:55 - Bruxelles E, Belgium -   One object was observed by one male witness for 95 minutes (Dohmen).

25 March 1957 20:30 - Rochefort-du-Gard, France -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by several witnesses.

25 March 1957 21:55 - Fontana, California , USA -   A meteor-like object was observed. One object was observed for over one minute (Confer). Explanation: Meteor.

26 March 1957 18:30 - UK -   Nocturnal lights were reported.

26 March 1957 19:50 - Renton, Washington, USA -   Balloon-like objects observed. Two balls were observed for over 30 minutes (Turk). Explanation: Balloon.

27 March 1957 20:35 - Roswell, New Mexico, USA -   C-45 transport saw to the left three bright white circular objects in tight formation

27 March 1957 20:40 - Roswell, New Mexico, USA -   USAF C-45 incident. Explanation: Aircraft.

28 March 1957 - Ciudad Bolivar, Orinoco Rvr, Venezuela -   Nautical UFO. Bright object seen by children, fell into water, then light became very strong.

28 March 1957 06:06 - Manitou Springs, Colorado , USA -   Balloon-like object observed. One ball was observed for 30 minutes (Nesbit). Explanation: Balloon.

28 March 1957 19:16 - San Antonio, Texas, USA -   An unidentified but otherwise conventional object was sighted. One object was observed for over ten minutes (Wall). Explanation: Balloon.

28 March 1957 22:35 - Reseda, California , USA -   Cigar-shaped, golden, glowing object

29 March 1957 - -   Visual observation from aircraft

29 March 1957 13:00 - Wickenburg, Arizona , USA -   Six small silvery objects play tag in sky, dive low and shoot away.

29 March 1957 19:30 - North Atlantic, Off Florida, Atlantic -   An object was tracked by radar and sighted visually. One object was observed by three witnesses for five minutes.

29 March 1957 19:30 - Bahamas N, Atlantic -   Pan Am 206A incident.

29 March 1957 22:20 - Radcliffe, UK -   One disc was observed.

30 March 1957 18:33 - Lake City, Florida, USA -   Balloon-like object observed. One ball was observed for 51 minutes (Savitz). Explanation: Balloon.

In April 1957 - Atlantic -   A comet-like object was observed. An unidentified object moving in a straight trajectory across the sky was observed by a male witness. Explanation: Planet.

In April 1957 - Orient, Far East -   A comet-like object was observed. One disc was observed by a male witness. Explanation: Planet.

In April 1957 - Kolobrzeg, Poland -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. One object, about 20 feet across, was observed by numerous military witnesses on the ocean.

31 March 1957 - Kent, UK -   An object was observed. Electromagnetic effects were noted. One object was observed.

In Spring 1957 - Oakland, New Jersey, USA -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. An object was observed at close range by a female witness (Ahlers, J).

April or May 1957 - Moriah Center, New York, USA -   Red disc creates television interference

In April 1957 Around 0200 - Detroit, Michigan, USA -   Men-in-black

In Spring 1957 07:30 - Saleve, Switzerland -   A flying disc was observed. One disc was observed by one witness (Simon).

In April 1957 17:30 - Mont-de-Laval, France -   1m diameter luminous globe with 2m wide Saturn ring, flies at 50m altitude overhead, slowly and silently.

31 March 1957 22:00 - Capodichino, Italy -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed.

In April 1957 22:00 - Tessalit S, Mali -   Viewed through theodolite. 5 small balls orbit large sphere on 45 degree plane at .5 rpm.

In Spring 1957 23:45 - Roslindale, Massachusetts, USA -   An object was observed. Occupants of the craft were seen. One object was observed by one witness in a bedroom.

2 April 1957 21:00 - Champigny-sur-Marne, France -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed.

4 April 1957 - Wigtownshire, UK -   Ground observation

4 April 1957 Noon - Europe -   An object was tracked by radar and sighted visually. One object was observed on the ocean.

4 April 1957 12:00 - West Freugh, UK -   Multiple radar confirmation. three radar posts tracked UFO at 60,000 feet, dove to 14,000 feet, circled, sped away

5 April 1957 - Reseda, California , USA -   An unidentified but otherwise conventional object was sighted. One object was observed for over three minutes (Simon).

5 April 1957 - Brenham, Texas, USA -   An unusual object was sighted, that had unconventional appearance and performance. A daylight disc was observed by a female witness (Kaechele, W).

5 April 1957 01:00 - San Carlos, Argentina -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Three objects were observed.

5 April 1957 18:00 - Dallas, Texas, USA -   Ovoid object flying to the southwest, moved back-forth 6 times. Had white center and red glowing edge. Left moving rapidly to the south southwest .

6 April 1957 19:47 - Washington, District Of Columbia, USA -   Meteor-like objects were observed. Two objects were observed for six seconds (Gregory). Explanation: Meteor.

7 April 1957 15:30 - Tahunanui, New Zealand -   Ovoid hovers over beach, suddenly shoots away rapidly to the NNW. Sharply defined edges, .5x size of moon.

7 April 1957 16:30 - Channel Island, New Zealand -   A flying disc was observed. One disc was observed by one experienced male witness on the ocean for 20 minutes (Matheson).

7 April 1957 17:00 - 427Th Air Refuel Sq, Georgia, USA -   An unidentified but otherwise conventional object was sighted. One object was observed by military witnesses for over 25 minutes. Explanation: Balloon.

7 April 1957 23:30 - New Plymouth, New Zealand -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. One cigar-shaped object was observed by two witnesses at an airport for over one minute.

8 April 1957 01:00 - Paso Del Borracho, Uruguay -   Nocturnal lights were reported.

9 April 1957 01:45 - Columbia, South Carolina, USA -   4 reports of same UFO. Explanation: Meteor.

9 April 1957 11:15 - Colorado Springs, Colorado , USA -   Hovered.

9 April 1957 22:15 - Rhinelander, Wisconsin, USA -   An unidentified but otherwise conventional object was sighted. One object was observed for 45 minutes (Hess). Explanation: Star.

10 April 1957 02:05 - Norfolk S, Virginia , USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by one experienced male witness for six seconds (Nichols).

10 April 1957 02:45 - High Falls, New York, USA -   A meteor-like object was observed. One object was observed for six seconds (Knauth). Explanation: Meteor.

10 April 1957 04:45 - Temple City, California , USA -   An object was observed. Men in black later interviewed witnesses. Traces found. One object was observed by three witnesses in a yard (Murphy).

10 April 1957 13:13 - El Centro, California , USA -   Balloon-like object observed. One ball was observed for 11 minutes (Abacrombe). Explanation: Balloon.

10 April 1957 16:50 - Kensington, UK -   Disc hovers, sways back-forth. Independent witnesses.

10 April 1957 20:30 - Ogden, Utah, USA -   An object was tracked by radar and sighted visually. One object was observed for over ten minutes (Baker). Explanation: Balloon.

11 April 1957 02:45 - Argentia Afb, Newfoundland, Canada -   A meteor-like object was observed. One object was observed by military witnesses for 18 seconds. Explanation: Meteor.

11 April 1957 19:00 - Cohasset, Massachusetts, USA -   Jets chase gold disc. Disc made fast, sharp turns, and shot away. Jets circle area for about one hour.

12 April 1957 08:00 - Figanieres, France -   Electromagnetic effect: car stalls. Odd cone-shaped UFO descends to side of highway N562. Vegetation at site dead.

13 April 1957 19:30 - East Tawas, Michigan, USA -   One object was observed for 30 minutes (Morriss).

13 April 1957 20:49 - Hialeah, Florida, USA -   A meteor-like object was observed. One object was observed for six seconds (Orshan). Explanation: Meteor.

13 April 1957 20:50 - Plymouth, Massachusetts, USA -   One object was observed by two witnesses.

14 April 1957 15:00 - Vins-sur-Caramy, France -   Five foot x three foot, metallic top-shaped object, seen by multiple witnesses jumping across road. Explanation: Hoax.

18 April 1957 07:50 - Albuquerque, New Mexico, USA -   Balloon-like object observed. One ball was observed for over six minutes (Lampkin). Explanation: Balloon.

19 April 1957 - Maiquetia, Venezuela -   Airliner sights UFO

19 April 1957 11:52 - Pacific -   Two metal disks were seen in the sky.

19 April 1957 23:52 - Izu Trench, Pacific -   Kitsukawara Maru incident.

20 April 1957 - Kfar Shamai, Israel -   A fireball was observed. One fireball was observed. Explanation: EM.

21 April 1957 00:15 - Sault Ste Marie, Ontario, Canada -   A flying disc was observed using optical instruments. One disc was observed in clear weather by one male witness for 30 seconds (Ouellette).

21 April 1957 01:45 - Montlucon, France -   Jellyfish saucer reappears several times, colored strings of light hang down.

22 April 1957 13:00 - Palalda, France -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft.

22 April 1957 13:00 - Palalda, France -   A whirlwind of flames, five meters in diameter, about 15 meters above ground.

22 April 1957 15:50 - Amarillo, Texas, USA -   A meteor-like object was observed. One object was observed for six seconds (Finch). Explanation: Meteor.

22 April 1957 21:00 - Beaune Villy, France -   A hovering object was observed. One object was observed.

22 April 1957 22:30 - Toury, France -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed.

22 April 1957 23:40 - Florida, USA -   Meteor-like objects were observed. More than three objects were observed by a male witness. Explanation: Meteor.

23 April 1957 01:10 - Hunter Afb N425K, Fl, Georgia, USA -   An unidentified object, later identified as a planet, was observed. An unidentified object, later identified as a planet, was observed. One object was observed by military witnesses at an airfield for over 18 minutes. Explanation: Planet.

23 April 1957 19:22 - Kent, Washington, USA -   An unidentified but otherwise conventional object was sighted. One object was observed for two minutes (Ewart). Explanation: Aircraft.

23 April 1957 20:50 - Harrow, UK -   An aircraft-like object was observed. One aircraft-like object was observed for over 30 seconds (Johnson). Explanation: Aircraft.

24 April 1957 19:50 - Geneve Nw, Switzerland -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed.

24 April 1957 21:00 - Port Columbus, Ohio, USA -   Balloon-like object observed. One ball was observed for several hours (Sloan). Explanation: Balloon.

24 April 1957 21:00 - Bedford, Indiana, USA -   Unidentified but otherwise conventional objects were sighted. Two objects were observed for several hours. Explanation: Star.

24 April 1957 21:00 - Dayton, Ohio, USA -   Balloon-like object observed. One ball was observed for several hours. Explanation: Balloon.

In late April 1957 Around 0100 - Greenwood, Indiana, USA -   An unidentified object was sighted, that had an unusual appearance or performance. One object, larger than a star, was observed in clear weather by two witnesses, a married couple, for over three minutes (Schlegel).

25 April 1957 02:30 - Ringgold, Louisiana, USA -   Project Blue Book "unidentified" case.

25 April 1957 15:30 - Glasgow, UK -   A daytime disc was reported.

25 April 1957 21:25 - Pesotum, Illinois, USA -   An unidentified object, later identified as a planet, was observed. An unidentified object, later identified as a planet, was observed. One object was observed for over 20 minutes. Explanation: Planet.

26 April 1957 18:45 - El Centro, California , USA -   One object was observed for over 15 minutes (Blackburn). Explanation: Flare.

27 April 1957 - Fort Morgan, Colorado , USA -   An unidentified object moving in a straight trajectory across the sky was observed by a female witness (Longacre).

28 April 1957 16:30 - Channel Island, New Zealand -   A flying disc was observed. One disc was observed on the ocean for 20 minutes.

28 April 1957 21:30 - Modesto, California , USA -   Flying discs were observed. Five domed discs were observed by one witness (Reynolds).

29 April 1957 21:00 - St Margaret'S Bay, UK -   Radar. Explanation: Aircraft.

29 April 1957 21:12 - Seattle, Washington, USA -   Meteor-like objects were observed. More than seven objects were observed for a few seconds (Fewel). Explanation: Meteor.

29 April 1957 21:20 - Leckhampton, UK -   Cigar trades light signals with disc, disc enters cigar. Comet visible in sky.

29 April 1957 22:00 - English Channel, UK -   An object was tracked by radar. One object was observed on the ocean. Explanation: Aircraft.

29 April 1957 22:05 - Worcester, Massachusetts, USA -   Disc moving rapidly to the north, slows and speeds up. Nocturnal lights and discs in formation until 22:40. Explanation: Meteor.

29 April 1957 22:15 - Virginia, Minnesota, USA -   Procession of objects. Viewed through binoculars. three dozen UFOs fly over in groups of 6-8 for 40 minutes. Greenish, disc-shaped objects n crescent formations. east rapidly to the west, horzon to horizon in 8 seconds.

May 1957 - Milford, Pennsylvania, USA -   A bowl-shaped object, seven meters in diameter; inside was an average height man with deep-set eyes.

In May 1957 04:50 - Winkleigh, UK -   Physiological effects.

1 May 1957 - Las Cruces, New Mexico, USA -   Nocturnal lights were observed by a female witness (Weiss).

1 May 1957 03:57 - St Louis, Missouri, USA -   Unidentified objects were sighted, that had an unusual appearance or performance. Three objects, larger than a star, were observed by one experienced male witness for over four minutes (Cemens).

1 May 1957 07:00 - Pajas Blancas Apt, Argentina -   Motorcyclist incident.

1 May 1957 07:00 - Pajasblancas Airport, Argentina -   A disk, 20 meters in diameter, landed. A man of average height emerged.

1 May 1957 08:30 - Canada Rosquin, Argentina -   A daytime disc was reported.

1 May 1957 10:00 - Guyhirn, UK -   Gold dinner-plate disc jerks around sky and circles. Vanishes.

1 May 1957 22:00 - Washington, District Of Columbia, USA -   A meteor-like object was observed. One object was observed for a few seconds (Kniss). Explanation: Meteor.

1 May 1957 Night - Hamilton, Ohio, USA -   Unusual objects were sighted, that had unconventional appearance and performance. Several objects were observed by a male witness.

2 May 1957 07:55 - Edwards AFB, California , USA -   Theodolite Crew incident. Explanation: Balloon.

2 May 1957 13:15 - Lake Silkworth, Pennsylvania, USA -   An unidentified but otherwise conventional object was sighted. One object was observed for over 15 minutes (Kinney). Explanation: Balloon.

3 May 1957 - Orewa, New Zealand -   Large cigar hovers, several revolutions.

3 May 1957 00:03 - Stead AFB, Nevada, USA -   A meteor-like object was observed. One object was observed by a male witness at an airfield. Explanation: Meteor.

3 May 1957 00:30 - Denver, Colorado , USA -   A meteor-like object was observed. One object was observed for six seconds (Finney). Explanation: Meteor.

3 May 1957 01:03 - Goodland, Kansas, USA -   A meteor-like object was observed. One object was observed by a male witness for 18 seconds. Explanation: Meteor.

3 May 1957 22:38 - Forcalquier, France -   Photo of two maneuvering lights.

4 May 1957 02:25 - McClellan AFB, California , USA -   USAF 552nd AEW&C incident. Explanation: Rocket.

4 May 1957 03:25 - California , USA -   Pilot saw a yellowish-red light at 10,000 feet

In early May 1957 04:50 - Winkleigh Apt, UK -   An object was observed. Electromagnetic effects were noted. Traces found. One object, about 80 feet across, was observed in clear weather by two witnesses at an airport for ten minutes (Payne).

In early May 1957 Morning - Everglades, Florida, USA -   Physiological effects. Explanation: Hoax.

5 May 1957 17:15 - Amsterdam, New York, USA -   An unusual object was sighted, that had unconventional appearance and performance. One object was observed by one male witness (Downey).

6 May 1957 20:20 - Uss Hunters Point, Atlantic -   Glowing black saucer went to the west northwest behind clouds.

7 May 1957 - Dixie Lee Junction, Tennessee, USA -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. An unidentifiable object was observed at close range.

7 May 1957 11:25 - Jackson, Mississippi, USA -   More than three objects were observed for six seconds (Cook).

7 May 1957 15:45 - Macon, Georgia, USA -   Motion pictures. Explanation: Aircraft.

7 May 1957 20:40 - Mount Vernon, New York, USA -   USN incident.

9 May 1957 - Parkland, Washington, USA -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. An object was observed at close range by a male witness at a military facility (Fletcher).

10 May 1957 Dusk - Lake Isabella, California , USA -   Highway abduction. White bubble, slight oblong floated above trees, descended to 10 feet above ground. Thin, bony humanoids 7-8' tall, wearing transparent clothes. Telepathy.

10 May 1957 22:45 - Beaucourt-Sur-Ancre, France -   An object was observed. Traces found. One luminous light, about 20 feet across, was observed by five witnesses, typical age 29, on a road for 30 minutes. No sound was heard. Four 4.5-foot-tall grey beings were seen.

10 May 1957 22:50 - Beaucourt-sur-Ancre, France -   A Hungarian refugee, Michel Fekete, was riding his bicycle when he saw an object hovering 30 cm above ground and four little men nearby.

11 May 1957 - Coast New England, USA -   GOC incident.

12 May 1957 20:30 - Bel Air, Maryland, USA -   An unidentified but otherwise conventional object was sighted. One object was observed by military witnesses for 210 minutes. Explanation: Star.

13 May 1957 21:00 - Birmingham, UK -   Objects were observed using optical instruments. Two objects, larger than a star, were observed by one experienced male witness for 30 seconds (Heathcote).

15 May 1957 - El Cerrito, California , USA -   Nocturnal lights were observed by a male witness (Brubaker).

15 May 1957 22:33 - Springfield, Missouri, USA -   A meteor-like object was observed. One object was observed by a male witness for a few seconds. Explanation: Meteor.

16 May 1957 20:00 - Montevideo, Uruguay -   Nocturnal lights were reported.

17 May 1957 07:50 - Roswell, New Mexico, USA -   One white disc was observed.

18 May 1957 - Grand Island, Nebraska, USA -   Nocturnal lights were reported (Hoeft).

20 May 1957 17:15 - Victoria, Australia -   One object was observed by more than a thousand witnesses.

20 May 1957 20:20 - Laredo AFB, Texas, USA -   One object was observed by military witnesses at an airfield.

20 May 1957 22:20 - Monte.San Pedro, Spain -   Nocturnal lights were reported.

21 May 1957 08:25 - Ventura, California , USA -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. One object was observed by several witnesses at a building for over 23 minutes (Ferris).

21 May 1957 12:00 - Chula Vista, California , USA -   An object was observed using optical instruments. One object was observed by two experienced male witnesses for 45 minutes (Martin).

21 May 1957 16:40 - Knoxville, Tennessee, USA -   Metallic ovoid to the northwest overhead, making noise. Hovers in silence. Possible landing in trees.

21 May 1957 19:30 - Berlin, Germany -   Balloon-like objects observed. More than two balls were observed by military witnesses for over two minutes. Explanation: Balloon.

22 May 1957 - Trenton, New Jersey, USA -   Nocturnal lights were reported.

22 May 1957 Morning - Clyrd, Monmouthshire, UK -   One object was observed by one witness at a mountain (Price).

22 May 1957 15:30 - Bletchley, UK -   Fat cigar in vertical position, hovers in place in stiff wind, turns, rapidly to the southeast.

22 May 1957 Around 1800 - Bad Ewischenahn, Germany -   A daytime disc was reported.

22 May 1957 22:30 - Coral Gables, Florida, USA -   Astronomer observes dim glowing 5m diameter ovoid object in sky. It zig-zags extremely fast rapidly to the east.

23 May 1957 08:15 - Kansas City, Kansas, USA -   Four discs in box formation, two turn to the northwest, two go rapidly to the north then join other pair going rapidly to the northwest. Explanation: Aircraft.

23 May 1957 21:00 - Boulder, Colorado , USA -   Green fireball

24 May 1957 10:38 - Kings Park, New York, USA -   Large plain cigar slowly flies to the south. "Flying boxcar" follows, jet seen rapidly to the north. Explanation: Balloon.

24 May 1957 19:45 - Cincinnati, Ohio, USA -   Silver sphere seen during AF maneuvers. Jets chase, shoots rapidly to the west, then comes back rapidly to the east. 25,000 feet altitude.

24 May 1957 21:30 - Elkhorn, Wisconsin, USA -   More than two objects were observed for two minutes (Isakson). Explanation: Flare.

In late May 1957 06:00 - Milford, Pennsylvania, USA -   Occupant: long face, tan skin, wore helmet and light gray shiny suit. After one minute craft spun around, flew off.

26 May 1957 05:00 - Ben Lomond, UK -   Yellow cigar maneuvers in all directions for 45 minutes. Ascends, descends, speeds away rapidly to the northwest.

26 May 1957 19:50 - Fort Myers, Florida, USA -   An unidentified but otherwise conventional object was sighted. One object was observed (Wylga). Explanation: Balloon.

26 May 1957 22:00 - Yuma, Arizona , USA -   A meteor-like object was observed. One object was observed for six seconds (Fszol). Explanation: Meteor.

27 May 1957 01:00 - St Andre-Treize-Voies, France -   Luminous white disc on ground. Takes off with whirring sound. Grass crushed.

27 May 1957 19:34 - Miami, Florida, USA -   Meteor-like objects were observed. Three objects were observed for a few seconds (Cooper). Explanation: Meteor.

27 May 1957 21:00 - Bristol, Tennessee, USA -   An unidentified but otherwise conventional object was sighted. One object was observed for 30 minutes. Explanation: Star.

28 May 1957 - Macon, Georgia, USA -   Photo. Explanation: Flare.

28 May 1957 00:30 - Oklahoma City, Oklahoma, USA -   A meteor-like object was observed. One object was observed by a male witness for six seconds. Explanation: Meteor.

29 May 1957 15:03 - Houma, Louisiana, USA -   Radar. Explanation: Mirage.

29 May 1957 20:00 - Great Falls, Montana, USA -   Balloon-like object observed. One ball was observed for 20 minutes (Zarr). Explanation: Balloon.

29 May 1957 22:30 - Wooster, Ohio, USA -   Unidentified but otherwise conventional objects were sighted. Two objects were observed for 20 minutes.

30 May 1957 10:01 - Detroit, Michigan, USA -   Radar. Explanation: Aircraft.

In June 1957 - Kitwe, Zambia -   A flying disc was observed. One disc was observed by a male witness at a mine.

In June 1957 - Harlingen, Texas, USA -   Nocturnal lights were reported (Chavez, M).

In June 1957 - Invercargill, New Zealand -   Objects were tracked by radar and sighted visually. Many objects were observed for 232 minutes.

31 May 1957 - Kent, UK -   Airliner suffered radio failure during UFO sighting.

In June 1957 Around 0600 - Goteborg, Sweden -   A flying disc was observed. One disc, about 20 feet across, was observed in clear weather by one experienced male witness in a yard for over three minutes (Gullmare).

31 May 1957 07:17 - Kent, UK -   BEA incident.

31 May 1957 07:20 - Rochester S2M, UK -   British Airliner incident.

In June 1957 13:20 - Luton, UK -   Large disc with tailfin and antenna zigzags low and close to schoolyard.

31 May 1957 21:40 - Terre Haute, Indiana, USA -   A lunar anomaly was observed. One object was observed for five minutes (Tersteege). Explanation: Moon.

1957 June 22:30 - Warrensburg, Montana, USA -   Senior state highway designer, wife, and mother-in-law have a close encounter with an object on a highway in open country

In June 1957 23:00 - St Austell, UK -   Photo

In June 1957 Around 2300 - North Europe -   Bell Rock incident. 250 reports of same UFO.

In June 1957 After 2300 - Warrensburg, Missouri, USA -   An object was observed from a car. Electromagnetic effects were noted. One object was observed by three male witnesses, typical age 27 (O'Brien).

1 June 1957 - New Orleans, Louisiana, USA -   Nautical UFO. "Blue streak" broke into two pieces, fell into Mississippi River. Only one witness say in break in two.

1 June 1957 02:48 - Iran -   A meteor-like object was observed. One object was observed for 18 seconds. Explanation: Meteor.

1 June 1957 04:00 - Eniwetok, Pacific -   An unidentified but otherwise conventional object was sighted. Electromagnetic effects were noted. An object, the size of the moon, was observed (Mackinnon).

1 June 1957 12:00 - East Los Angeles, California , USA -   Man witnesses two bright "white and blue" stars pursued by jet fighters.

2 June 1957 20:15 - Waterloo, Iowa, USA -   A lunar anomaly was observed. One object was observed (Cook). Explanation: Moon.

3 June 1957 00:30 - Belo Horizonte, Brazil -   Photo

3 June 1957 16:00 - Mossley, UK -   Photo

3 June 1957 20:30 - Shreveport, Louisiana, USA -   Transport pilots sight, and two ground radars track, two objects which follow them for an hour, and which respond when they flash their running lights.

3 June 1957 21:30 - Anthony St Germain, France -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed.

3 June 1957 21:35 - Shreveport, Louisiana, USA -   Trans-Texas Airline incident.

3 June 1957 21:55 - Oostende (Ostende), Belgium -   One object was observed in overcast weather.

4 June 1957 12:30 - Kingseat, New Zealand -   Balloon-like objects observed. Two ovoid objects, about 20 feet across, were observed on a farm for two minutes. Explanation: Balloon.

4 June 1957 19:00 - Coro, Venezuela -   One disc was observed.

5 June 1957 - Las Heras, Argentina -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed.

In early June 1957 - Barquismeto, Venezuela -   Landed remotely

5 June 1957 22:30 - Warrensburg N Hwy13, Missouri, USA -   Electromagnetic effect: watch, Radio frequency interference. Orange ball paces car, small blue lights exit and go all directions. Watch and radio EM.

5 June 1957 Night - Uriman, Venezuela -   Undocumented report of a landing and of "bellicose dwarfs." Indians saw luminous object land and little men emerge. When they tried to catch one he slashed at Indian and gave arm deep cut.

6 June 1957 - San Felipe, Venezuela -   Fireball falls but stops in midair, comes down between hills, then rises up and goes away.

6 June 1957 17:00 - Dixons Corners, Ontario, Canada -   Silver disc hovers at 8km altitude.

6 June 1957 22:00 - Hicksville, New York, USA -   My friend and I saw 7 perfectly circular objects fly over us.We were laying in his backyard looking up to see any shooting stars.

6 June 1957 23:30 - Christchurch, UK -   An unusual object was sighted that had unconventional appearance and aerobatic performance. Nocturnal lights were reported (Davies).

7 June 1957 - Atlantic Coast, USA -   Procession of objects. USAF incident.

7 June 1957 - -   Multiple ground sightings, New Jersey and Atlantic Coast

7 June 1957 After 0200 - McGuire AFB, New Jersey, USA -   An unidentified object was sighted, that had an unusual appearance or performance. Nocturnal lights were observed by military witnesses at an airfield.

7 June 1957 21:00 - Toulon, France -   Nocturnal lights were reported.

8 June 1957 21:50 - Fukuoka City, Japan -   Photo

8 June 1957 Night - Oberstdorf, Germany -   Nocturnal lights were reported (Stermose).

9 June 1957 - Puerto Cabello, Venezuela -   LAV DC-3 incident.

10 June 1957 09:42 - Shrewsbury, UK -   Balloon-like object observed. One ball was observed by more than two witnesses (Birch). Explanation: Balloon.

10 June 1957 18:40 - Tokyo, Japan -   Two small round objects zigzag, hover, and flutter over theater for 20 seconds. Ascended very rapidly

11 June 1957 - Salta, Argentina -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed.

11 June 1957 21:30 - Glasgow, UK -   Nocturnal lights were reported.

11 June 1957 21:30 - Odessa, Texas, USA -   Balloon-like object observed. One ball was observed for 45 minutes. Explanation: Balloon.

11 June 1957 21:30 - Amarillo, Texas, USA -   Balloon-like object observed. One ball was observed for 45 minutes (Jones). Explanation: Balloon.

12 June 1957 11:00 - Iran -   A meteor-like object was observed. One object was observed for a few minutes. Explanation: Meteor.

12 June 1957 17:23 - Wake, Pacific -   Aircraft-like objects were observed. Two aircraft-like objects were observed (Albers). Explanation: Aircraft.

12 June 1957 19:30 - Milan, Italy -   Object "big as a hen's egg"

12 June 1957 21:30 - South Cotulla, Texas, USA -   Meteor-like objects were observed. Three objects were observed by military witnesses for a few seconds. Explanation: Meteor.

13 June 1957 - Omaha, Nebraska, USA -   CAP incident.

13 June 1957 - Knoxville, Tennessee, USA -   A daylight disc was observed by a male witness (Fincannon).

13 June 1957 10:32 - Columbus, New Mexico, USA -   Balloon-like object observed. One ball was observed by military witnesses for over 15 minutes. Explanation: Balloon.

13 June 1957 22:00 - Hastings, New Zealand -   Nocturnal light rapidly to the west, makes 180 degree turn rapidly to the east, makes series of jerky movements, leaves silver glowing trail.

13 June 1957 23:55 - La Aurora, Guatemala -   Orange sphere, no sound, to the northeast, makes several stops, turns, moves to the northeast. Rises vertically and gone.

14 June 1957 - Ladysmith, Wisconsin, USA -   Nocturnal lights were reported (Daniels).

14 June 1957 09:20 - Chilwell, UK -   A flying disc was observed. One silver disc was observed by one witness on a road for over one minute. No sound was heard.

14 June 1957 13:14 - McChord AFB, Washington, USA -   An object was tracked by radar. One object was observed by military radar at an airfield for 33 minutes. Explanation: Balloon.

14 June 1957 20:00 - Silver Bell, Arizona , USA -   An unusual object was sighted by multiple witnesses, that had unconventional appearance and aerobatic performance. One sphere, about 150 feet across, was observed by two male witnesses, one of them an experienced observor, at a mine for ten minutes.

14 June 1957 21:50 - Canton, Ohio, USA -   GOC incident. Explanation: Meteor.

14 June 1957 22:50 - Benton, Pennsylvania, USA -   A meteor-like object was observed. One object was observed by military witnesses for six seconds (Thomas). Explanation: Meteor.

In mid-June 1957 - Great Falls, Montana, USA -   From June 1956-57-58-Aug. 1959 we were stationed at Malstrom A. F

15 June 1957 Dusk - Newbury, UK -   Hovered.

15 June 1957 18:10 - Lancashire County, UK -   Viewed through telescope. Saturn-shaped UFO with four portholes below rim.

15 June 1957 Before 2200 - Landshut, Germany -   Nocturnal lights were reported (Siebert).

16 June 1957 13:30 - Gardena, California , USA -   Balloon-like object observed. One ball was observed for nine minutes (Sherwood). Explanation: Balloon.

16 June 1957 13:58 - Las Vegas, Nevada, USA -   Radar tracked an inbound target at average speed of about 6,200 mph for 48 seconds

17 June 1957 - Ohakea Afb, New Zealand -   Vampire incident.

17 June 1957 - Gulfport, Mississippi, USA -   Radar-transmitting UFO which correlated with visual of brilliant white-red light

18 June 1957 - in Pacific 150 miles west of, California, USA -   Objects were observed from a car. Three objects were observed by several male experienced witnesses on the ocean (Wertz).

18 June 1957 20:00 - Hawaiian Fisherman, Pacific -   USAF RC-121D Patrol incident.

18 June 1957 20:00 - Crockett, California , USA -   Three objects were observed by three witnesses on a river.

18 June 1957 Around 2000 - in the ocean 150 miles west of San Fransisco, California, USA -   Objects were observed from a car. Three objects were observed by several male experienced witnesses on the ocean.

18 June 1957 20:45 - Jackson, Mississippi, USA -   An object was observed using optical instruments. Multiple independent witnesses. One object was observed by one experienced male witness for over one minute (Carlock).

19 June 1957 21:00 - San Leandro, California , USA -   The night of Sputnik, a drag race in the sky of 5 and objects stole the show for us.

20 June 1957 - Bluff Hill, New Zealand -   An object was tracked by radar. An unidentified object was tracked by radar.

20 June 1957 08:20 - Floyd Bennett Nas, New York, USA -   Balloon-like object observed. One ball was observed by military witnesses at an airfield for over 48 seconds. Explanation: Balloon.

20 June 1957 15:00 - Haddington, UK -   A daytime disc was reported.

20 June 1957 18:35 - Vandalia, Ohio, USA -   Balloon-like object observed. One ball was observed. Explanation: Balloon.

21 June 1957 11:45 - Charlton Kings, UK -   An unidentified but otherwise conventional object was sighted. A daytime disc was reported (Jones). Explanation: Balloon.

21 June 1957 17:30 - Capel, UK -   Shot straight up.

21 June 1957 21:45 - Voussac N146, France -   Nocturnal lights were reported.

21 June 1957 22:15 - Pepperrell Afb, Newfoundland, Canada -   One object was observed by military witnesses.

22 June 1957 - Rye, New York, USA -   Nautical UFO.

22 June 1957 - Royal Oak, Michigan, USA -   Nocturnal lights were observed by a male witness in the suburbs (Walling).

24 June 1957 16:30 - Villa Grove, Colorado , USA -   Balloon-like object observed. One ball was observed for two hours (Anderson). Explanation: Balloon.

25 June 1957 - Baltimore, Maryland, USA -   Objects were observed. Electromagnetic effects were noted. Seven red saucers were observed.

25 June 1957 01:00 - Cherbourg, France -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. One object was observed on the shore.

25 June 1957 23:00 - Greencastle Hwy234, Indiana, USA -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. One light was observed by four male witnesses on a highway (Bennett, G).

25 June 1957 23:30 - La Coruna, Spain -   Nocturnal lights were reported.

26 June 1957 11:00 - Edwards AFB, California , USA -   Balloon-like object observed. One ball was observed for five minutes (Fisher). Explanation: Balloon.

26 June 1957 Night - Boianai, Papua New Guinea -   Close encounter with a an unidentified craft and its occupants. One object, about 80 feet across, was observed by over 22 witnesses (Gill).

27 June 1957 16:15 - Lyon, France -   A daytime disc was reported.

27 June 1957 21:50 - Infracombe, UK -   Nocturnal lights were reported.

28 June 1957 - Winona, Missouri, USA -   Photo

28 June 1957 10:45 - Christchurch, New Zealand -   A flying disc was observed. One aluminum disc was observed by four witnesses in a city for over one minute.

28 June 1957 12:10 - Howe Sound, British Columbia, Canada -   A flying disc was observed. One dome-shaped object, about 40 feet across, was observed by three witnesses on the ocean for over one minute.

29 June 1957 - Siberia, Russia -   Photo

29 June 1957 11:03 - Feldbach, Switzerland -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. One green ball was observed by one witness.

29 June 1957 22:00 - Brazil -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed.

In Mid- 1957 - Owen Sound, Ontario, Canada -   Reported encounter with inhuman beings. An abduction by alien entities was reported by one male witness.

In Mid- 1957 - Orbe, Switzerland -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. Nocturnal lights were observed by several witnesses. Explanation: Aircraft.

In July 1957 - Antarctic Ocean, Antarctica -   Objects were observed from a car. A group of objects was observed by a male military witness on the ocean (Orrego).

In Mid- 1957 - Kent, Connecticut, USA -   A daytime disc was reported (Klein).

In Mid- 1957 - Little Oil Creek, South Dakota, USA -   A meteor-like object was observed. An object which flew in a straight line across the sky was reported. Explanation: Meteor.

In Mid- 1957 - Trenton S, New Jersey, USA -   Nocturnal lights were reported.

In July 1957 - Frankfort, Indiana, USA -   A daylight disc was observed by a male witness (Greeno).

In July 1957 - White Lake, New York, USA -   Nocturnal lights were reported.

In July 1957 - Methuen, Massachusetts, USA -   Nocturnal lights were observed by a male witness (Melvin, G).

In July 1957 02:30 - Azusa, California , USA -   A flying disc was observed. It moved with a falling-leaf motion. One disc was observed.

In July 1957 08:00 - Toowoomba, Queensland, Australia -   One domed disc was observed by a group of witnesses on a farm for two minutes.

In July 1957 10:30 - San Giustino Cospaia, Italy -   Black silent 2.5m long cigar with port flies 4m over children, slows, speeds up.

In Mid- 1957 Daytime - Sanford, Michigan, USA -   Missing time. 8-year-old girl riding bike feels tingle along spine, cold feeling. Looks up, fell from bike, saw large craft tree-top level, blue beam engulfed her, unconscious.

In July 1957 13:15 - Luton, UK -   A flying disc was observed. One disc was observed (Dillon).

In July 1957 14:30 - Fjord, Norway -   Photo. Explanation: Malfunct.

In July 1957 15:30 - Leighton Buzzard, UK -   A daytime disc was reported.

In July 1957 17:00 - -   A comet-like object was observed. One object was observed in clear weather (Saunders).

In Mid- 1957 Around 1700 - Wroclaw, Poland -   Instrumented observation

In Mid- 1957 Before 1800 - Oklahoma City, Oklahoma, USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by six witnesses for over five minutes.

In Mid- 1957 Before 1800 - El Reno, Oklahoma, USA -   An unidentified object was sighted by mutliple independent witnesses, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by five witnesses for over five minutes (Murphy).

In Mid- 1957 Around 1800 - Chaumont, France -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by numerous witnesses for 24 seconds (Boucher).

30 June 1957 18:30 - Belo Horizonte, Brazil -   DC-3 incident.

In July 1957 19:15 - Sao Sebastiao, Brazil -   Hat-shaped craft with three spherical "landing gear" beneath came in from sea, landed. two men descended ladder, human, 5'10", dressed in green coveralls. Warned against nuclear tests. Took short ride. Explanation: Hoax.

In Mid- 1957 Around 2000 - Walsall, UK -   An unidentified but otherwise conventional object was sighted. One object was observed by three witnesses for 30 minutes (Langford).

In July 1957 20:15 - Hampshire, UK -   An unidentified but otherwise conventional object was sighted. A daytime disc was observed by more than two witnesses (Jones; Oxtoly). Explanation: Mirage.

In July 1957 23:00 - Salta, Argentina -   Nocturnal lights were reported.

In July 1957 Around 2300 - Tacoma S1M, Washington, USA -   An unusual object was sighted, that had unconventional appearance and performance. One object, eight times the size of the moon, was observed in clear weather by one male witness in a city for six seconds (Pettinger).

In July 1957 Night - Hattiesburg 50M, Mississippi, USA -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Three objects were observed in overcast weather by two male witnesses for six seconds (Mewkinney).

1 July 1957 21:00 - Glasgow, UK -   A daytime disc was reported.

1 July 1957 22:00 - Avon, Massachusetts, USA -   One object was observed.

3 July 1957 22:15 - Kassel, Germany -   Nocturnal lights were reported (Mees).

4 July 1957 - Vitoria, Brazil -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by three witnesses.

4 July 1957 22:00 - Campos, Brazil -   Real Airlines incident.

5 July 1957 20:30 - Canton, Ohio, USA -   An unidentified but otherwise conventional object was sighted. One object was observed for several hours. Explanation: Star.

6 July 1957 21:20 - Aberdeen Pr Gd, Maryland, USA -   An unidentified but otherwise conventional object was sighted. One object was observed by military witnesses for three hours. Explanation: Star.

7 July 1957 - Belo Horizonte, Brazil -   (Ambiguous location - more than one place with this name).

7 July 1957 - Johnstons River, Prince Edward Island, Canada -   Nocturnal lights were observed by a male witness (Brazil, R).

7 July 1957 02:38 - Kokomo, Indiana, USA -   Balloon-like objects observed. Two balls were observed by military witnesses for 37 minutes. Explanation: Balloon.

7 July 1957 10:30 - Guanabara Bay, Brazil -   An unidentified but otherwise conventional object was sighted. One object was observed by several female witnesses on the ocean for over 15 minutes.

7 July 1957 14:30 - Roma, Italy -   Abduction

7 July 1957 18:01 - Peoria, Illinois, USA -   Unidentified but otherwise conventional objects were sighted. Two objects were observed for two hours (Wimmer). Explanation: Star.

7 July 1957 19:00 - Summerside, Prince Edward Island, Canada -   Fog or smoke. Dark disc rapidly to the northwest extremely fast, makes V-turns, blows smoke. RCAF report.

7 July 1957 23:50 - Vancouver, British Columbia, Canada -   An unusual object was sighted, that had unconventional appearance and performance. One blue ovoid object, about 40 feet across, was observed in a city for five minutes.

8 July 1957 - Mapire, Venezuela -   Landed remotely. Explanation: Meteor.

9 July 1957 - Aldeia Do Bispo, Sabug, Portugal -   An unidentified object was sighted, that had an unusual appearance or performance. One disc was observed in a pasture for two minutes.

9 July 1957 19:00 - Amarillo, Texas, USA -   Balloon-like object observed. One ball was observed (Ross). Explanation: Balloon.

9 July 1957 21:05 - Hamilton, Ontario, Canada -   One object was observed by two witnesses.

9 July 1957 23:00 - Pouxeux, France -   Nocturnal lights were reported.

10 July 1957 05:00 - Los Angeles, California , USA -   Balloon-like object observed. One ball was observed for 30 minutes (Olmstead). Explanation: Balloon.

10 July 1957 12:10 - Crawford Spring, Oregon, USA -   An unidentified object was sighted, that had an unusual appearance or performance. One brown domed disc was observed by two witnesses at a mountain for over one minute (Medlock). A plopping sound was heard.

10 July 1957 18:30 - Hartford, Connecticut, USA -   Balloon-like object observed. One ball was observed by military witnesses for 45 minutes. Explanation: Balloon.

10 July 1957 Evening - Phillipsburg, New Jersey, USA -   Cigar shaped, after nightfall, Phillipsburg New Jersey, witnesses

10 July 1957 20:30 - Del Rio Nw8M, Texas, USA -   An unidentified but otherwise conventional object was sighted. One object was observed by one witness for over 35 minutes (Bradley). Explanation: Star.

10 July 1957 21:10 - Mariannelund, Sweden -   An object was observed. Multiple independent witnesses. One object, about 150 feet across, was observed by five witnesses in a yard for eight minutes (Johansson).

11 July 1957 07:30 - Elmira, New York, USA -   Balloon-like object observed. One ball was observed for 90 minutes (Britt; Ersly). Explanation: Balloon.

11 July 1957 20:30 - Basel, Switzerland -   A cigar-shaped object was observed. One cigar-shaped object was observed by over 12 witnesses.

12 July 1957 Night - Baltimore, Maryland, USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by one experienced male witness (Bartlett).

13 July 1957 - Giglio Island, Italy -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed on the shore.

13 July 1957 - Fallsvale, California , USA -   A daytime disc was reported (Mitchek).

13 July 1957 17:37 - Newport Beach, California , USA -   A meteor-like object was observed. One object was observed for six seconds (Routledges). Explanation: Meteor.

13 July 1957 22:10 - Bedford, Ohio, USA -   Four shifting-shape objects were observed by several witnesses in a residential area for five minutes.

13 July 1957 23:00 - Las Cruces, New Mexico, USA -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. An unidentifiable object was observed at close range for two hours (Weiss). Explanation: Psych.

14 July 1957 17:50 - Rio Doce, Brazil -   Cruzeiro Sul Convair incident.

14 July 1957 17:55 - Santo Antonio, Brazil -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by two witnesses for six seconds.

14 July 1957 Dusk - Iguatama, Brazil -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Two objects were observed by seven witnesses (Fonseca).

14 July 1957 20:26 - Pampulha Airport, Brazil -   Brazilian AF B-26 incident.

14 July 1957 22:30 - Belleville.Meuse, France -   Nocturnal lights were reported.

16 July 1957 04:30 - Bainbridge, Ohio, USA -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Five objects were observed by three witnesses.

16 July 1957 12:56 - Las Vegas, Nevada, USA -   An object was tracked by radar. One object was observed by military witnesses for 2.2 minutes. Explanation: Malfunct.

16 July 1957 20:30 - Katoomba, New South Wales, Australia -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. One object was observed by three witnesses at a mountain for over six minutes (Hickey). A noise was heard.

17 July 1957 - Tampa, Florida, USA -   Nocturnal lights were observed by a male witness (Candileri, T).

17 July 1957 03:30 - Texas, USA -   Nocturnal lights were reported.

17 July 1957 04:10 - La Mesa, California , USA -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. One object was observed by one female witness, an experienced observor (Carroll). A noise was heard.

17 July 1957 04:30 - Gulfport, Mississippi, USA -   RB-47 case: object follows bomber for 90 minutes, and is simultaneously tracked visually, by ground and airborne radar, and by on-board ELINT sensors.

17 July 1957 05:10 - Meridian, Mississippi, USA -   RB-47 incident. Explanation: Meteor.

17 July 1957 15:23 - New York, New York, USA -   A flying disc was observed. One disc, nine times the size of the moon, was observed by one witness for under one minute (Horan).

17 July 1957 20:40 - Albany, New York, USA -   A meteor-like object was observed. One object was observed by a male witness for six seconds. Explanation: Meteor.

18 July 1957 - Tampa, Florida, USA -   Nocturnal lights were observed by a female witness (Sammons, G).

18 July 1957 00:00 - Sarasota, Florida, USA -   Balloon-like object observed. One ball was observed for over one minute (Gordon). Explanation: Balloon.

18 July 1957 10:46 - Mt. Lemmon, Arizona , USA -   Height-finder radars tracked a stationary target at 42,000 ft

18 July 1957 Dusk - Paris, Illinois, USA -   Objects were observed from a car. Two objects were observed by numerous male witnesses at a building (Mathes).

18 July 1957 22:46 - Mount Lemmon Afs, Arizona , USA -   An object was tracked by radar. One object was observed by military witnesses at an airfield for 34 minutes. Explanation: Debris.

19 July 1957 17:02 - Waupun, Wisconsin, USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object, larger than a star, was observed in clear weather for 12 seconds (Lockhart). Explanation: Meteor.

21 July 1957 19:35 - Hawthorne, California , USA -   An unidentified but otherwise conventional object was sighted. One object was observed by a male witness for ten minutes (Morton; Snyder). Explanation: Star.

21 July 1957 23:50 - Gelsenkirchen, Germany -   Nocturnal lights were reported (Rabs).

22 July 1957 - Lake Tahoe, California , USA -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. An unidentified object at close range (with physical effects) was observed by two female witnesses at a lake (Zunino).

22 July 1957 21:50 - Fishkill, New York, USA -   A meteor-like object was observed. One object was observed for 18 seconds (Montague). Explanation: Meteor.

22 July 1957 22:05 - Wild Rice, North Dakota, USA -   An unidentified but otherwise conventional object was sighted. One object was observed on a river for two hours (Gouin). Explanation: Star.

22 July 1957 22:15 - Amarillo, Texas, USA -   TWA incident. Explanation: Aircraft.

23 July 1957 05:15 - Blairstown, New Jersey, USA -   An object was sighted that had an appearance and performance beyond the capability of known earthly aircraft. One object was observed by one witness for two minutes (Drago).

23 July 1957 Daytime - White Sands, New Mexico, USA -   A flying disc was observed. One disc was observed by four witnesses (Wagner).

23 July 1957 19:30 - Dayton, Ohio, USA -   Balloon-like object observed. One ball was observed for over 15 minutes (Simon). Explanation: Balloon.

23 July 1957 19:45 - Conway, New Hampshire, USA -   A star-like object was observed and photographed. One object was observed for over 35 minutes (Campbell). Explanation: Star.

24 July 1957 - Las Cruces, New Mexico, USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by four witnesses for 42 seconds (Wagner).

24 July 1957 - Kouril Islands, Russia -   Soviet anti-aircraft batteries fire on luminous UFOs.

24 July 1957 10:00 - Nemuro Strait, Japan -   USAF F-86 incident.

24 July 1957 10:00 - Devonport, New Zealand -   A hovering flying disc was observed. One silver disc was observed at a hotel for over one minute.

24 July 1957 10:00 - Nemuro, Japan -   F-86 fighters scrambled to intercept disc-shaped object

24 July 1957 Daytime - Norway, Norway -   Photo

24 July 1957 24:00 - Vladivostok, Russia -   Soviet anti-aircraft fire at group of fast discs.

25 July 1957 - Pacific Coast, Russia -   Russian coastal batteries shot at high speed UFOs.

25 July 1957 00:25 - Niagara Falls, New York, USA -   Circular brilliant white object with smaller 6? pale green lights. Explanation: Balloon.

25 July 1957 04:00 - Huangshi, China -   An unidentified object was sighted, that had an unusual appearance or performance. One disc was observed by several witnesses in a town for over one minute. A humming sound was heard.

25 July 1957 12:45 - Oregon City, Oregon, USA -   Brilliant disc spins across sky fast, slight tilt. Possible meteor? Explanation: Meteor.

25 July 1957 19:05 - Fairborn, Ohio, USA -   Balloon-like object observed. One ball was observed for over 15 minutes (Fannin). Explanation: Balloon.

25 July 1957 19:10 - Sao Sebastiao, Brazil -   A hat-shaped, luminous craft; two normal men with long, fair hair hanging to their shoulders.

25 July 1957 23:30 - North Havre, Montana, USA -   Zigzag maneuvers. Explanation: Aircraft.

26 July 1957 00:00 - Evora, Portugal -   Disc of light hovers, maneuvers, shoots away.

26 July 1957 03:13 - Marietta, Georgia, USA -   ANG incident. Explanation: Meteor.

26 July 1957 10:00 - Iran -   An aircraft-like object was observed. One aircraft-like object was observed for over five minutes. Explanation: Aircraft.

26 July 1957 12:35 - Oregon City, Oregon, USA -   A flying disc was observed. One disc was observed by two witnesses.

26 July 1957 21:00 - Rio De Janeiro Apt, Brazil -   Unusual objects were sighted, that had unconventional appearance and performance. Two triangles were observed in overcast weather by several witnesses at an airport for several hours. No sound was heard.

26 July 1957 22:05 - Arco.Baulhe, Portugal -   Nocturnal lights were reported.

27 July 1957 - Eglin AFB, Florida, USA -   Balloon-like object observed. One ball was observed by military witnesses at an airfield. Explanation: Balloon.

27 July 1957 03:00 - Longmont, Colorado, USA -   A thick disc, ice blue, with a top like honeycomb

28 July 1957 01:43 - Baltimore, Maryland, USA -   A meteor-like object was observed. One object was observed briefly (Weiner). Explanation: Meteor.

28 July 1957 Dawn - Longmont W6M, Colorado , USA -   Hovered.

28 July 1957 21:40 - Stamford, Connecticut, USA -   Unidentified but otherwise conventional objects were sighted. Three objects were observed for over 25 minutes.

28 July 1957 22:00 - Las Cruces, New Mexico, USA -   One object was observed for over five minutes (Weiss).

29 July 1957 01:15 - Piedmont W2M, South Dakota, USA -   One object was observed by military witnesses for five minutes.

29 July 1957 11:45 - Oldsmar, Florida, USA -   A pale yellow fireball glide into the water and exploded

29 July 1957 22:31 - Cleveland, Ohio, USA -   Large, round, yellow-white object

30 July 1957 - Galt,, Canada -   A circular object landed.

30 July 1957 10:30 - Galt S4M, Ontario, Canada -   Traces, Monster. Silvery disc descended close to ground. Humming sound, flames from underneath. Dogs reacted; landing site burned and charred; large, claw-like impressions found. Explanation: Meteor.

30 July 1957 20:00 - Claremont, California , USA -   A star-like object was observed and photographed. One object was observed by two witnesses for ten minutes (Mogt; Sanchez). Explanation: Aircraft.

In August 1957 - Thermopolis, Wyoming, USA -   Hovered.

In August 1957 - Northern Territory, Australia -   An unidentified but otherwise conventional object was sighted. One object was observed.

In August 1957 - Sullivan, Indiana, USA -   An abduction of a witness was reported. An abduction by aliens was reported by a male witness (Hawkins, P).

In August 1957 01:05 - Livada-Somes, Romania -   A hovering object was observed. One object was observed by two witnesses on a river for two minutes.

31 July 1957 Dawn - Cacalilao, Mexico -   A daytime disc was reported (Camarillo).

31 July 1957 09:30 - Calistoga, California , USA -   Two objects were observed by one male witness for 18 seconds (Besler).

In August 1957 Around 2100 - Rotherham, UK -   A fireball was observed. One fireball was observed (Wragg). Explanation: Meteor.

In August 1957 After 2100 - Gary, Indiana, USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object, the size of a star, was observed by one male witness in a city for over three minutes (Obrien).

In August 1957 Around 2200 - Birmingham, UK -   An aircraft-like object was observed. One aircraft-like object was observed (Nicholls).

In August 1957 22:00 - Castiglioncello Cove, Italy -   Blue-green ovoid descends, stops over trees for several minutes.

1 August 1957 20:35 - Oregon, USA -   Meteor-like objects were observed. Several objects were observed by a male witness for 18 seconds. Explanation: Meteor.

1 August 1957 21:10 - Toronto, Ontario, Canada -   One object was observed by a male witness for 20 minutes (Aldwinckle).

1 August 1957 21:35 - Mount Shasta, California , USA -   A meteor-like object was observed. One object was observed by one witness for six seconds (Graves). Explanation: Meteor.

1 August 1957 21:35 - Greenville, California , USA -   A meteor-like object was observed. One object was observed by four witnesses (Schwarzenburg). Explanation: Meteor.

1 August 1957 22:00 - Zurich, Switzerland -   A flying disc was observed. One disc was observed by two witnesses (Morgenthaler).

2 August 1957 - Vermont, USA -   A comet-like object was observed. One object was observed (Mrkos). Explanation: Planet.

2 August 1957 - Columbus, Ohio, USA -   A daylight disc was observed by a male witness (Gage, F).

2 August 1957 03:30 - Red Bluff, California , USA -   A meteor-like object was observed. One object was observed by one witness for six seconds (Spero). Explanation: Meteor.

2 August 1957 13:00 - Reefton, New Zealand -   School incident.

2 August 1957 21:10 - Livingston, Montana, USA -   A meteor-like object was observed. One object was observed by military witnesses. Explanation: Meteor.

3 August 1957 - San Francisco, California, USA -   Radar detected a target on IFF Mode Two transponder only

3 August 1957 06:45 - Northern Part, California , USA -   Radar. Explanation: Mirage.

3 August 1957 21:30 - Dover, New Jersey, USA -   Unusual objects were sighted, that had unconventional appearance and performance. Several objects were observed by a male witness for 30 minutes. Explanation: Moon.

3 August 1957 22:00 - Denville, New Jersey, USA -   Guards incident. Explanation: Moon.

4 August 1957 - Naples, Italy -   Numerous flying discs and cylinders were observed near Vesuvius and over Naples by 30 witnesses.

5 August 1957 04:00 - San Fernando, California , USA -   Bright golden discs to the west, dip down, lost in clouds.

5 August 1957 10:00 - Tolar Grande, Argentina -   Police incident.

5 August 1957 20:25 - Silver Spring, Maryland, USA -   Seven objects were observed for over four minutes (Dickey).

5 August 1957 20:35 - Atlanta, Georgia, USA -   A meteor-like object was observed. One object was observed for 18 seconds (Ewing). Explanation: Meteor.

5 August 1957 21:26 - Hempstead, New York, USA -   An unusual object was sighted, that had unconventional appearance and performance. One object was observed by one male witness briefly (Castor, R; Hurd).

In early August 1957 21:30 - Blackwood Hill, South Australia, Australia -   Nocturnal lights were observed by two witnesses, a married couple (Twiddy; Willoughby).

5 August 1957 22:00 - Lergravsviken, Sweden -   A flying disc was observed. Gravity effects were noted. One disc, about 80 feet across, was observed in clear weather by several witnesses (as reported to the police) on the ocean for over one minute (Akerberg). A noise was heard.

6 August 1957 - Mojave Desert, California , USA -   Death. Explanation: Coincidenc.

6 August 1957 21:10 - Cernay, France -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Five objects were observed.

7 August 1957 - Hartford City, Indiana, USA -   Nocturnal lights were reported.

7 August 1957 01:38 - Bunker Hill Afb, Indiana, USA -   A meteor-like object was observed. One object was observed by military witnesses at an airfield for 12 seconds. Explanation: Meteor.

7 August 1957 13:45 - Livingston Manor, New York, USA -   3 reports of same UFO. Explanation: Balloon.

7 August 1957 20:30 - Dayton, Ohio, USA -   An object, later identified as the planet Venus, was observed. One object was observed for 30 seconds (Palmer). Explanation: Venus.

7 August 1957 22:00 - Lakehurst, New Jersey, USA -   Meteor-like objects were observed. Two objects were observed for 12 seconds (Reiser). Explanation: Meteor.

8 August 1957 Dusk - Odessa, Texas, USA -   An unidentified but otherwise conventional object was sighted. One object was observed by four female witnesses, typical age 12, for 20 minutes (Lann).

8 August 1957 20:50 - Dayton, Ohio, USA -   Balloon-like object observed. One ball was observed for 12 seconds (Collings). Explanation: Balloon.

9 August 1957 - Bakersfield, California , USA -   A meteor-like object was observed. Nocturnal lights were reported (Hogg). Explanation: Meteor.

9 August 1957 11:50 - Pawling, New York, USA -   Balloon-like object observed. One ball was observed for ten minutes (Garhold; Nagle). Explanation: Balloon.

10 August 1957 - Cape Canaveral, Florida, USA -   Atlas ICBM incident.

12 August 1957 - San Francisco, California , USA -   Nocturnal lights were reported (Moore).

12 August 1957 Around 2200 - Preston, Ontario, Canada -   A hovering object was observed. Multiple independent witnesses. One object was observed by more than four witnesses for 30 minutes (Sneath).

13 August 1957 06:00 - Ogden Dunes, Indiana, USA -   Glowing domed disc, 20m diameter, hovers 15m over lake, maneuvers.

13 August 1957 20:46 - Fresno, California , USA -   A meteor-like object was observed. One object was observed for six seconds (Sargood). Explanation: Meteor.

13 August 1957 20:48 - Eugene, Oregon, USA -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Two objects were observed by one witness briefly (Young).

13 August 1957 22:45 - Belton, Missouri, USA -   A meteor-like object was observed. One object was observed by military witnesses at an airfield for 18 seconds. Explanation: Meteor.

14 August 1957 - Joinville, Brazil -   Airliner cabin lights dimmed and engine sputtered during UFO sighting

14 August 1957 01:00 - Cairo, Illinois, USA -   Pendulum motion. Ovoids seen below clouds for 45 minutes. one blinks on-off, one swings in sky.

14 August 1957 02:30 - Foresthill, California , USA -   An object was observed. Animal reactions to the object were reported. One object was observed by one male witness (Engler).

14 August 1957 02:37 - Kings County Hosp, New York, USA -   Nocturnal lights were reported (Abarno).

14 August 1957 03:40 - New York, New York, USA -   Procession of objects. Explanation: Aircraft.

14 August 1957 07:00 - White Pond, New Jersey, USA -   Hairdresser incident.

14 August 1957 20:55 - C47, Brazil -   Varig incident.

14 August 1957 22:30 - Preston, Ontario, Canada -   Bright fiery circular object follows teenage girls, moves away and back. Physiological effects: eye conjunctivitis.

15 August 1957 10:30 - Pineville, Louisiana, USA -   Balloon-like object observed. One ball was observed for seven minutes (Ureste). Explanation: Balloon.

In mid-August 1957 Around 1500 - Detroit N150M Hwy30, Michigan, USA -   A hovering object was observed. One object, about 80 feet across, was observed in clear weather by more than one male witness, one of them an experienced observor, in a forest for six seconds (Manning).

15 August 1957 21:00 - Atchison, Kansas, USA -   Four small discs, 5cm thick, dart and maneuver, hide from plane that passes over, glow, rapidly to the southeast.

15 August 1957 21:30 - Woodland Hills, California , USA -   Hovered. Explanation: Aircraft.

17 August 1957 Night - Lima, Ohio, USA -   100 feet glowing disc to the west, makes 90 degree turn, rapidly to the south over steel foundry. No sound, no Radio frequency interference.

18 August 1957 Afternoon - -   A flying disc was observed and photographed. It moved with a falling-leaf motion. One disc was observed by one male 60-year-old witness on a farm.

18 August 1957 19:00 - Myrtle Creek, Oregon, USA -   One object was observed by three witnesses for five minutes (Hessler).

18 August 1957 20:04 - Tacoma Hwy99, Washington, USA -   A meteor-like object was observed. One object was observed by one witness on a highway for six seconds (Melton). Explanation: Meteor.

18 August 1957 20:45 - Avellaneda, Argentina -   Nocturnal lights were reported.

18 August 1957 21:00 - Shelbyville, Indiana, USA -   3m long ovoid rises 30m over cornfield, lites on rim, clanking noise