1 January 1973 Around 2100 - Greensburg Rd4, Pennsylvania, USA -   Hovered.

2 January 1973 - Kalispell, Montana, USA -   Nocturnal lights were reported (Jones).

2 January 1973 18:40 - Santa Ana, California , USA -   50 feet domed disc with antennas at low altitude. Possible blimp? rapidly to the southwest. Explanation: Aircraft.

2 January 1973 19:45 - Fort Erie, Ontario, Canada -   An unidentified object was sighted, that had an unusual appearance or performance. One object was observed by five witnesses for ten minutes (Hall).

2 January 1973 23:30 - Hudson, North Carolina, USA -   UFO featuring red and blue linked lights.

4 January 1973 Around 2100 - Orebro, Sweden -   Photo

4 January 1973 Night - Swinburne, South Africa -   An object was observed using optical instruments. One object was observed by several male witnesses, one of them an experienced observor, for 40 minutes (Sparks).

5 January 1973 - St Lucas Se, Iowa, USA -   Nocturnal lights were reported.

6 January 1973 - Kalmar District, Sweden -   Hovered.

7 January 1973 - Oskarshamn, Sweden -   An unusual object was sighted, that had unconventional appearance and performance. One object was observed by three witnesses (Rudberg).

8 January 1973 - El Alto, Argentina -   Hovered.

9 January 1973 00:35 - Transjo, Vimmerby, Sweden -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation.

10 January 1973 01:00 - Quarouble, France -   Glowing box shines strong beam of light. Makes complex maneuvers, ascends, to the southeast.

11 January 1973 Around 0300 - Svardsjo Area, Sweden -   Unusual objects were sighted, that had unconventional appearance and performance. Three objects were observed in clear weather by three witnesses for ten minutes.

13 January 1973 After 1700 - Marion Hwyg, Wisconsin, USA -   A flying disc was observed. One disc was observed by one male witness on a highway.

13 January 1973 20:00 - Arendonk, Belgium -   Four objects were observed by one experienced male witness in a town (De Proost).

13 January 1973 20:45 - Kerrville, Texas, USA -   Photo

15 January 1973 19:45 - Toulx-Ste Croix, France -   Two discs hover, one shoots rapidly to the east. Nocturnal lights also seen.

16 January 1973 - Asbury, South Carolina, USA -   Unidentified objects were sighted, that had an unusual appearance or performance. Two objects were observed by one witness.

16 January 1973 19:33 - Cumnor, UK -   One object was observed by more than one witness (Mansell).

16 January 1973 19:35 - Basel, Switzerland -   A mysterious explosion was reported. Nocturnal lights were observed by more than one witness.

16 January 1973 20:05 - Muttenz, Switzerland -   A fireball was observed. One fireball was observed by more than one witness.

16 January 1973 20:55 - Greensburg, Pennsylvania, USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed for over one minute.

17 January 1973 18:20 - Greensburg, Pennsylvania, USA -   12 reports of same UFO.

17 January 1973 Night - Thurmont, Maryland, USA -   Reporter incident.

18 January 1973 19:30 - Carbon, Pennsylvania, USA -   A cigar-shaped object was observed. One cigar-shaped object was observed for two minutes.

18 January 1973 21:23 - Beatty Crossroads, Pennsylvania, USA -   An unidentified object was sighted, that had an unusual appearance or performance. One object was observed for over one minute.

20 January 1973 21:30 - Brent.Montreux, Switzerland -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. Nocturnal lights were observed by one witness (Mercier).

21 January 1973 18:15 - Herminie, Pennsylvania, USA -   Hovered.

21 January 1973 19:45 - Kingston, Ontario, Canada -   Round fiery object passed slowly over Norman Rodgers Drive, Kingston, Ontarion.

21 January 1973 21:45 - Brent.Montreux, Switzerland -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. Nocturnal lights were observed by one witness (Mercier).

21 January 1973 Night - Muhlenburg, Pennsylvania, USA -   Huge light seen by several witnesses passing over or near the home of Mr. and Mrs. Jenkins.

22 January 1973 23:15 - Salisbury Downs, South Australia, Australia -   Two white, hazy lights sighted at 30 north travelling south at great speed.

23 January 1973 20:00 - Holyhead Cgs, UK -   Unusual white streak was noticed in sky from Holyhead Coastguard station, Anglesey.

23 January 1973 21:00 - Chicago, Illinois, USA -   An unidentified but otherwise conventional object was sighted. One object was observed by several hundred witnesses in a city for several hours (Shapiro).

24 January 1973 - Kenosha Hwy32, Wisconsin, USA -   Nocturnal lights were reported on a highway (Reich).

24 January 1973 19:32 - Ludenscheid, Germany -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by five witnesses for 18 seconds (Peiniger).

24 January 1973 20:03 - Bradenville, Pennsylvania, USA -   An unidentified object was sighted, that had an unusual appearance or performance. One object was observed for a few seconds.

24 January 1973 22:00 - Dutchtown, Pennsylvania, USA -   Unidentified objects were sighted, that had an unusual appearance or performance. Several objects were observed for five minutes.

25 January 1973 - Sagres Algarve, Portugal -   Formation of 5 lights with trail 80 miles away from plane, speed 36,000 kph.

25 January 1973 - Avoca, New South Wales, Australia -   Undescribed UFO seen.

25 January 1973 Around 1900 - Allegheny County, Pennsylvania, USA -   100+ reports of same UFO.

In late January 1973 Evening - Meckering, Western Australia, Australia -   Farmer incident.

25 January 1973 21:30 - Pleasant Unity, Pennsylvania, USA -   Several reported a cigar-shaped object near Pleasant Unity.

25 January 1973 22:15 - Apollo, Pennsylvania, USA -   Three amber lights were seen moving erratically by several near Apollo.

26 January 1973 Night - Wilmington, Delaware, USA -   Three very low maneuvering lights seen over area.

27 January 1973 04:30 - Key West, Florida, USA -   Three domed tops bob up and down. Split apart and fly rapidly to the northeast into clouds.

27 January 1973 20:00 - Bruges Harbor, Belgium -   Disc over harbor.

28 January 1973 Around 0100 - Fleurier, Switzerland -   An unusual object was sighted that had unconventional appearance and aerobatic performance. Nocturnal lights were observed by a female witness. Explanation: Flare.

28 January 1973 22:01 - Varmdo, Sweden -   Cigar-shaped objects were observed. More than 13 cigar-shaped objects, twice the size of the moon, were observed in cloudy weather by one male 62-year-old witness for 24 minutes (Warhner).

29 January 1973 Around 2100 - North Huntingdon, Pennsylvania, USA -   And 2 witnesses watched an undescribed object perform very unusual movements in sky.

29 January 1973 22:00 - Hove, South Australia, Australia -   To the NNW. Group of 6 pale white lights moving from 8 degrees south to 25 degrees azimuth 345 degrees. V shaped formation like a flight of birds.

29 January 1973 Night - Winsford, UK -   Multicolored light seen by two over Woodford Lane.

30 January 1973 03:45 - Nerang, Queensland, Australia -   Strange light with cone on top seen by one eyewitness from Benowa Estate, Nerang.

30 January 1973 21:20 - Valdemarsvik, Sweden -   An unidentified but otherwise conventional object was sighted. One object, the size of a star, was observed in clear weather by two male experienced witnesses for seven minutes (Ostholm).

In February 1973 - McNeil, Arkansas, USA -   Beam of light.

In February 1973 - Clovis, New Mexico, USA -   Hovered. Explanation: Planet.

31 January 1973 00:15 - Lismore, New South Wales, Australia -   Several red and green lights watched by several persons from Lismore and Goonellabah.

31 January 1973 Around 1800 - Warialda, New South Wales, Australia -   Two bright lights joined by a "shaft of light" were seen by three on the road.

In February 1973 19:00 - Thompson, Manitoba, Canada -   Huge pearl colored ovoid hovers, zig-zags with instant acceleration. Helicopters reported chasing object.

In February 1973 19:20 - Cambridge, Ontario, Canada -   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 (Rooth).

In February 1973 Night - Lexington, Alabama, USA -   Two orange discs were watched by 125 people at a junkyard near Lexington.

1 February 1973 04:15 - New South Wales, Australia -   Huge wing-shaped object seen by Ron Farrant at Stanthorpe, other witnesses at Barraba.

1 February 1973 04:20 - Barraba, New South Wales, Australia -   Huge wing-shaped object seen by several separate observers. Source: Glen Innes Examiner.

1 February 1973 20:10 - Minehead, UK -   Half-moon or crescent-shaped object seen over Minehead by 4, who all described it as green in color and completely quiet.

2 February 1973 18:30 - Umberleigh, UK -   Several persons saw a round fiery object over Umberleigh.

2 February 1973 22:17 - Dorrance, Kansas, USA -   Six people reported seeing an object which featured a blinking light over area near Dorrance.

4 February 1973 20:00 - Wheeler Dam, Alabama, USA -   Landed remotely.

In early February 1973 Night - Beira, Mozambique -   Disc chased plane during 20 minute encounter.

6 February 1973 - Holbrook, Massachusetts, USA -   Unidentified objects were sighted, that had an unusual appearance or performance. More than one object was observed by one male 41-year-old witness for over 15 minutes.

6 February 1973 Night - Wood River Junction, Rhode Island, USA -   Fairly low moving oval object passed over Shumunkanuc Hill.

7 February 1973 02:00 - Durant, Oklahoma, USA -   Witness let dogs out and noticed lights stationary in sky. Watched for 10 minutes, then went inside.

7 February 1973 22:30 - Varberg, Sweden -   Flying discs were observed. Two discs were observed by two witnesses on the ocean (Jonsson).

8 February 1973 19:24 - Geneve, Switzerland -   A meteor-like object was observed. Nocturnal lights were observed by one witness (Durussel).

8 February 1973 20:00 - Pana, Illinois, USA -   One orange ball was observed by a male witness (Woidt).

9 February 1973 03:00 - San Andres Island, Colombia -   Three luminous cones hovered over beach. Bottom part spins. Flew off moving rapidly to the in different directions.

9 February 1973 17:30 - Portsmouth, UK -   Two objects were observed by one witness.

10 February 1973 02:00 - Manor, Pennsylvania, USA -   Hovered.

10 February 1973 17:10 - Chiswick Gunnrsby P, UK -   One object was observed by three witnesses.

10 February 1973 18:30 - Wood River Junction, Rhode Island, USA -   Correction incident.

11 February 1973 01:30 - West Point City, Pennsylvania, USA -   Hovered.

11 February 1973 02:00 - Hengistbury Head, UK -   Coast Guardsmen incident.

11 February 1973 18:00 - Chobham, Woking, UK -   Nocturnal lights were observed by one female witness on a road (Rouffignac).

11 February 1973 22:01 - Dayton, Washington, USA -   An unidentified but otherwise conventional object was sighted. One object was observed by several witnesses.

12 February 1973 17:30 - Eastleigh, UK -   One object was observed by four witnesses.

13 February 1973 21:55 - Great Casterton, UK -   One object was observed by one witness (Hodgson).

14 February 1973 - Lunokhod 1, Moon, Space -   Lunokhod 1 incident, at Taurus Mtns 1M

14 February 1973 04:20 - Beverly Hills, California , USA -   Nocturnal lights were reported.

14 February 1973 05:30 - Darmstadt, Germany -   A cigar-shaped object was observed. One cigar-shaped object was observed by one witness (Kuemmel).

14 February 1973 19:30 - Beligneux, France -   Domed disc with three small balls of light at low altitude. to the west

In mid-February 1973 - Monterrey.Asseri, Costa Rica -   Landed remotely.

15 February 1973 19:50 - Lake Fenten, Malung, Sweden -   An unusual object was sighted, that had unconventional appearance and performance. One object was observed by one male 52-year-old witness (Larsson).

17 February 1973 20:30 - Langendorf, Switzerland -   A cigar-shaped object was observed. One cigar-shaped object was observed by one witness.

18 February 1973 20:50 - Brunswick, Georgia, USA -   Luminous 7m disc passed low over homes. Flew to the south very slowly, turned to the north.

18 February 1973 23:00 - St-Jean-Baptiste-De-Rouville, Quebec, Canada -   Hovered.

18 February 1973 Night - Asbury, Sc, North Carolina, USA -   Three lights came out of a larger low altitude light, flew away.

18 February 1973 Night - Exe Estuary, UK -   Several saw multicolored lights over Exe estuary.

18 February 1973 Night - White Plains, South Carolina, USA -   Four moving lights.

18 February 1973 23:20 - Dunedin, New Zealand -   Several watched cigar-shaped object over Dunedin.

18 February 1973 23:20 - Seadown Hwy1, New Zealand -   Cigar over towns seen by many independent witnesses. Source: Timaru Times.

19 February 1973 20:30 - Boston Se20M H2, Massachusetts, USA -   An unidentified object was sighted, that had an unusual appearance or performance. One object was observed by two witnesses, a married couple.

19 February 1973 21:20 - Lake Hiawatha, New Jersey, USA -   15m domed box hovers over reservoir. Hums. Second fast object flew by fast.

19 February 1973 Night - Gaffney, South Carolina, USA -   An unusual object was sighted, that had unconventional appearance and performance. One object was observed by more than two witnesses.

20 February 1973 21:15 - Franklin Twp, Pennsylvania, USA -   Hovered.

20 February 1973 23:30 - Lake Oljaren, Sweden -   An unusual object was sighted, that had unconventional appearance and performance. One object, the size of the moon, was observed in clear weather by one experienced male witness at a lake for five minutes (Kjellholm).

21 February 1973 19:20 - Winsford, UK -   12 watched semi-circular object over Winsford.

21 February 1973 21:30 - Draytonville, South Carolina, USA -   Four red and yellow lights in the sky.

21 February 1973 22:00 - Stewartstown, Pennsylvania, USA -   Hovered.

21 February 1973 Night - Lima, Peru -   Brilliant round object hovered at 1km altitude. Colored lights, flew rapidly to the west out to sea, gone in a flash.

22 February 1973 - Grand Tower, Illinois, USA -   Oval-shaped light seen by single witness over power generator (Central Illinois Public Service Co).

22 February 1973 Evening - Sesekinika, Ontario, Canada -   Unusual objects were sighted, that had unconventional appearance and performance. More than two objects were observed by two experienced male witnesses for a few seconds (Harvey).

23 February 1973 - Muscle Shoals, Alabama, USA -   W. Rogers watched a low hovering object just above a hospital roof at Muscle Shoals.

24 February 1973 Around 0700 - Halstead, South Close, UK -   Cigarette-shaped object fly by.

24 February 1973 Around 0700 - Marks Tey, UK -   A cigar-shaped object was observed. Multiple independent witnesses. One cylinder was observed by one male witness in a residential area for over 15 minutes (Ennew).

24 February 1973 17:30 - Heywood, UK -   Cigarette-shaped object fly by.

24 February 1973 21:45 - Dover, UK -   An unidentified but otherwise conventional object was sighted. One object, the size of a star, was observed by three witnesses, typical age 27, in a forest for over 15 minutes.

24 February 1973 Before 2200 - Dover Green Lane, UK -   An unidentified but otherwise conventional object was sighted. One object, the size of a star, was observed by three witnesses, typical age 27, in a forest for over 15 minutes (Gill).

25 February 1973 - Draytonville, South Carolina, USA -   Unusual objects were sighted, that had unconventional appearance and performance. Three objects were observed.

25 February 1973 00:30 - Franklin County, Washington, USA -   Nocturnal lights were observed by three witnesses.

25 February 1973 22:15 - Berthierville, Quebec, Canada -   An unusual object was sighted, that had unconventional appearance and performance. One object was observed by three witnesses for 90 minutes (Benoit).

26 February 1973 19:30 - Offenbach, Germany -   Hovered.

26 February 1973 Night - Tip Top Mtns, Missouri, USA -   Hovered.

27 February 1973 - Westwood, Massachusetts, USA -   An unidentified object was sighted, that had an unusual appearance or performance. One object was observed by seven witnesses in a city.

27 February 1973 Afternoon - Heywood, UK -   Orange light seen by Mr. G. Brown from the Darnhill estate, near Heywood.

27 February 1973 19:25 - Assebroek, Belgium -   Orange maneuvering light seen over Assebroek.

27 February 1973 Evening - Sint-Kruis, Belgium -   Photo

27 February 1973 22:30 - Varberg, Sweden -   A flying disc was observed. One disc was observed by two witnesses, a married couple, on the ocean.

In March 1973 - Sedona, Arizona , USA -   Photo of structured object

In March 1973 19:00 - Solihull, UK -   A flying disc was observed. One disc was observed by one witness (Chadwick).

In March 1973 Around 2200 - St Paul, Minnesota, USA -   An unidentified object was sighted, that had an unusual appearance or performance. One object, the size of the moon, was observed by more than one male witness on a highway for eight minutes (Allen).

1 March 1973 - Brushy Creek, Missouri, USA -   Nocturnal lights were observed by a male witness (Turnbough).

2 March 1973 20:00 - Ans, Belgium -   One object was observed.

2 March 1973 Evening - Guston School, UK -   One object was observed by two witnesses.

3 March 1973 04:20 - Montmirail, France -   1m diameter ball of light makes complex maneuvers for 30 minutes. Joined by second object. More acrobatics and flashes.

4 March 1973 18:25 - Dartford, UK -   One object was observed by two witnesses.

4 March 1973 18:25 - Bexleyheath, UK -   One object was observed by two witnesses.

4 March 1973 22:20 - Corvallis, Oregon, USA -   An unidentified object was sighted, that had an unusual appearance or performance. One object, about 40 feet across, was observed by more than one male witness in a city (Satterlee).

5 March 1973 21:00 - Southern Part, Rhode Island, USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One disc was observed by one female witness at a fire tower (Gardner).

6 March 1973 18:45 - Wheatly, UK -   One object was observed by more than one witness on a highway (Perry).

8 March 1973 Evening - Maes.Haf Crumlin, UK -   A flying disc was observed. One disc was observed by two male witnesses, one of them an experienced observor (Bebb).

8 March 1973 20:30 - Raversijde, Belgium -   A flying disc was observed. One disc was observed by two teenage witnesses on the shore for over three minutes (Coucke).

8 March 1973 22:30 - Hamburg 2M, Pennsylvania, USA -   An unidentified object was sighted, that had an unusual appearance or performance. One object was observed by one female witness in a yard for over three minutes (Semmel).

8 March 1973 22:49 - Brent.Montreux, Switzerland -   An aircraft-like object was observed. One aircraft-like object was observed by one witness. Explanation: Aircraft.

8 March 1973 Night - North Bay H17E, Ontario, Canada -   An unidentified object was sighted, that had an unusual appearance or performance. One object was observed by three witnesses for a few minutes (Waghorn).

9 March 1973 Around 0100 - Eksjo, Sweden -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Physiological effects were noted. Three objects were observed by one experienced male witness (Fridolfsson).

9 March 1973 06:45 - Adamsville, Pennsylvania, USA -   Hovered.

9 March 1973 19:30 - Kirchheim, Germany -   Nocturnal lights were reported (Koenig).

9 March 1973 21:10 - Vetlanda, Sweden -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Three objects were observed by one experienced male witness (Andersson).

9 March 1973 Around 2200 - West Haven, Connecticut, USA -   A flying disc was observed using optical instruments. One disc, larger than a star, was observed by one male witness (Demartino).

9 March 1973 23:15 - Skarfalten, Sweden -   Flying discs were observed. Two discs were observed by more than two male teenagers in a forest (Henriksson).

11 March 1973 02:45 - Delmont, Pennsylvania, USA -   WHJB incident.

11 March 1973 03:50 - Highbury, South Australia, Australia -   Was in car facing west, saw white-blue light 10-15 degrees west,went in a straight line to to the south, turned, to the east.

11 March 1973 06:20 - Mainz-Mombach, Germany -   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 witness (Ebel).

11 March 1973 21:00 - Russellville, Alabama, USA -   Photo

12 March 1973 - Charlestown, Rhode Island, USA -   An unidentified object was sighted, that had an unusual appearance or performance. One object was observed by more than one male witness, one of them an experienced observor, near a nuclear test site (Gariepy).

12 March 1973 21:30 - Piedmont, Missouri, USA -   Hovered.

13 March 1973 02:15 - Kingston, Rhode Island, USA -   An unidentified but otherwise conventional object was sighted. One object was observed by two female witnesses at a school for 20 minutes.

13 March 1973 19:15 - Saylors Lake, Pennsylvania, USA -   Flying discs were observed. 12 discs were observed by a male witness at a lake.

13 March 1973 21:00 - Woodvale Park, South Australia, Australia -   To the south.

14 March 1973 Evening - Bethlehem, Pennsylvania, USA -   Procession of objects.

14 March 1973 21:30 - Canton, Ohio, USA -   Silent disc flashes lights, darts all over sky.

15 March 1973 Evening - Milton, Pennsylvania, USA -   An unidentified object was sighted, that had an unusual appearance or performance. One ball was observed by numerous witnesses for two minutes.

16 March 1973 20:15 - Morphett Vale, South Australia, Australia -   A flashing silver light seen 45 degrees southwest travelling at great speed in a straight line south southwest .  No sound.

16 March 1973 21:00 - Sesekinika, Ontario, Canada -   Unusual objects were sighted, that had unconventional appearance and performance. Three objects were observed by four witnesses for five hours (Harvey).

17 March 1973 21:00 - Gstaad, Switzerland -   A meteor-like object was observed. Nocturnal lights were observed by two witnesses (Mauer).

18 March 1973 Pre-dawn - Clearwater Lake, Nr Piedmont, Missouri, USA -   One object was observed by more than two witnesses at a lake.

18 March 1973 21:00 - Block Island,Nr Shelter Harbor, Rhode Island, USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object, the size of the moon, was observed by a group of witnesses on the shore.

19 March 1973 03:45 - Hamburg, Pennsylvania, USA -   An unidentified object was sighted, that had an unusual appearance or performance. One object was observed by more than one female witness in a yard (Zettlemoyer).

19 March 1973 22:45 - Devonport Coast Rd, Tasmania, Australia -   One object was observed by two witnesses on the shore.

20 March 1973 19:30 - Pen Argyl W, Pennsylvania, USA -   Unidentified objects were sighted, that had an unusual appearance or performance. Two objects were observed for a few seconds.

20 March 1973 19:30 - Shannock, Rhode Island, 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 female witness at a fire tower (Gardner).

20 March 1973 Evening - Hamburg, Pennsylvania, USA -   Hovered.

20 March 1973 Evening - Sunbury, Pennsylvania, USA -   Hovered.

20 March 1973 20:00 - Kettle Moraine St Forest, Wisconsin, USA -   An unidentified but otherwise conventional object was sighted. One object, larger than a star, was observed by two witnesses in a forest.

20 March 1973 21:05 - Greensburg, Pennsylvania, USA -   An unidentified object was sighted, that had an unusual appearance or performance. One cigar-shaped object was observed for over one minute.

20 March 1973 21:30 - Springfield, New Hampshire, USA -   Landed remotely.

21 March 1973 - Williams Twp, Pennsylvania, USA -   Nocturnal lights were reported.

21 March 1973 18:45 - Kingston Hwy138, Rhode Island, 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 female witness on a highway (Gardner; Todd).

21 March 1973 19:15 - Southern Part Hwy138, Rhode Island, USA -   An object was observed using optical instruments. One object was observed by two experienced male witnesses (Todd).

21 March 1973 After 2100 - Bushkill Twp Hwy512, Pennsylvania, USA -   Objects were observed. Multiple independent witnesses. Three objects were observed by witnesses (as reported to the police) on a highway (Kostenbader).

21 March 1973 21:20 - Phillipsburg, Pa, New Jersey, USA -   Correction incident.

22 March 1973 02:40 - Keyingham, UK -   Orange sphere suddenly vanished in sight.

22 March 1973 21:05 - Nazareth, Pennsylvania, USA -   Procession of objects.

22 March 1973 Night - Sesekinika, Ontario, Canada -   Photo of luminous UFO

23 March 1973 - Paterson, New Jersey, USA -   One object was observed by more than two witnesses.

23 March 1973 - Piedmont, Missouri, USA -   Nocturnal lights were reported.

23 March 1973 19:30 - Gloucester, Massachusetts, USA -   An unusual object was sighted, that had unconventional appearance and performance. One object was observed by a group of witnesses for over three minutes.

23 March 1973 20:30 - Los Alamitos, California , USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed in overcast weather by three witnesses (Harper).

23 March 1973 21:00 - Belfast, Pennsylvania, USA -   Unidentified objects were sighted, that had an unusual appearance or performance. Seven objects were observed by more than two male witnesses (De Nardo).

23 March 1973 21:00 - Maiquetia, Venezuela -   Unusual objects were sighted, that had unconventional appearance and performance. More than one object was observed by numerous female witnesses in a city for over 15 minutes (Bolivar; Castejon).

23 March 1973 Night - Easton, Pennsylvania, USA -   Unusual objects were sighted, that had unconventional appearance and performance. Two objects were observed by several witnesses (Toulomelis). Explanation: Aircraft.

23 March 1973 Night - Todasana, Venezuela -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. More than one object was observed by one male 50-year-old witness in a city (Lozano).

23 March 1973 Night - La Sabana, Venezuela -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. More than one object was observed in a city.

23 March 1973 Night - Glocester, Rhode Island, USA -   Nocturnal lights were observed by a male witness (Calouri).

23 March 1973 Night - Forks, Pennsylvania, USA -   Nocturnal lights were observed by a male witness (Stem).

24 March 1973 04:00 - Wood River, Rhode Island, USA -   Hovered.

24 March 1973 20:00 - Schuylkill Haven, Pennsylvania, USA -   Photo

25 March 1973 19:30 - Lake Thompson, Massachusetts, USA -   Motion pictures

26 March 1973 22:15 - Melrose, South Australia, Australia -   Bright white light gradually darker towards the rear travelling in a straight line from 45 degrees northeast to northwest .

27 March 1973 - New Hampshire, USA -   Motion pictures

27 March 1973 Dusk - Piedmont Millers Pl, Missouri, USA -   Unusual objects were sighted, that had unconventional appearance and performance. Three objects were observed by a male witness.

27 March 1973 18:40 - Wilkes-Barre, Pennsylvania, USA -   Hovered.

27 March 1973 20:30 - Marshalls Creek, Pennsylvania, USA -   Nocturnal lights were reported.

27 March 1973 20:45 - Wood River Junction, Rhode Island, USA -   An unidentified object was sighted, that had an unusual appearance or performance. One object was observed by one female witness near a nuclear test site (Gardner).

27 March 1973 21:30 - Mount Wellington, Tasmania, Australia -   An unusual object was sighted, that had unconventional appearance and performance. One object was observed by one witness at a mountain.

27 March 1973 21:31 - Pierpont, Ohio, USA -   Viewed through binoculars. Large circular object flashed many colors. Flew northeast rapidly to the southeast on erratic path.

27 March 1973 22:30 - Shamokin, Pennsylvania, USA -   Hovered.

27 March 1973 22:45 - Temple S, Pennsylvania, USA -   One object was observed by several witnesses in a city (Emerich).

27 March 1973 Night - Evans City, Pennsylvania, USA -   An object was observed. Multiple independent witnesses. One object was observed by a male witness.

28 March 1973 Around 0100 - Kutztown Ne, Pennsylvania, USA -   One object was observed by several witnesses.

28 March 1973 03:00 - Kempton, Tasmania, Australia -   Landed remotely.

28 March 1973 16:00 - Mount Bouquet, France -   Object shaped like Apollo space capsule makes several loops in the sky, about 10km in diameter. Flies off to the east at 800m altitude.

28 March 1973 19:00 - Petersham, Massachusetts, USA -   Motion pictures

28 March 1973 19:00 - Adventure Bay, Tasmania, Australia -   An unidentified but otherwise conventional object was sighted. One object, the size of the moon, was observed in clear weather by two female witnesses for over 15 minutes.

28 March 1973 20:15 - Center Harbor, Belknap College, New Hampshire, USA -   Flying discs were observed using optical instruments. Multiple independent witnesses. Two discs were observed by three male witnesses at a college for several hours (Bridges; Wingate).

29 March 1973 Dusk - Kingston, Pennsylvania, USA -   Hovered.

29 March 1973 22:53 - Derby, UK -   Three striped double-domes with bat shapes passed over at low altitude.

29 March 1973 Night - Lake Thompson, Massachusetts, USA -   Motion pictures

30 March 1973 06:30 - La Guaira, Venezuela -   Unusual objects were sighted, that had unconventional appearance and performance. A group of objects, about 1 foot across, was observed by numerous male witnesses in a city for several hours (Rojas).

30 March 1973 22:30 - Leesport, Pennsylvania, USA -   Hovered.

In April 1973 - Mine La Motte, Missouri, USA -   Nocturnal lights were observed by a female witness (Simms).

In April 1973 06:50 - La Monte, Missouri, 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 witnesses for five minutes (Simons). Explanation: Aircraft.

31 March 1973 07:00 - Fareham, UK -   Two silver rod-cigars, over Portsdown Hill, suddenly vanish.

In Spring 1973 Morning - Edgewater, British Columbia, Canada -   Unusual objects were sighted, that had unconventional appearance and performance. Two objects were observed by two female witnesses at a mountain for ten minutes (Beamish).

In Spring 1973 Afternoon - Elmhurst, Illinois, 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 single female witness in a yard for 20 minutes (Hartnett).

In Spring 1973 Around 2000 - Middletown, Pennsylvania, USA -   Photo

In April 1973 21:00 - Yorkshire Hwy1, UK -   Mysterious explosions were reported. Several objects were observed by one female witness on a highway (Roughton).

In April 1973 23:00 - Murray Bridge, South Australia, Australia -   Object with lights, moving northeast .

In April 1973 23:30 - Middleton.Teesdale, UK -   One object was observed by eight witnesses in a yard. A noise was heard.

1 April 1973 Around 0600 - Hollywood, California , USA -   16 sightings of ovoid objects between April 1-8.

2 April 1973 22:00 - Kutztown, Pennsylvania, USA -   Hovered.

3 April 1973 19:10 - Los Angeles, California , USA -   Procession of objects. Explanation: Aircraft.

3 April 1973 19:10 - Lake View Terrace, California , USA -   Procession of objects. Explanation: Aircraft.

3 April 1973 19:33 - Greensburg, Pennsylvania, USA -   A flying disc was observed. One disc was observed for two minutes.

3 April 1973 20:10 - Backe, Sweden -   Photo of luminous UFO

3 April 1973 21:00 - Mariakerke, Belgium -   Unidentified objects were sighted, that had an unusual appearance or performance. Four objects were observed by one male child for 24 seconds (Grootaert).

3 April 1973 21:35 - Edgewater, New Jersey, USA -   Nocturnal lights were observed by one witness.

4 April 1973 - Tamagawa Tokyo, Japan -   An unidentified but otherwise conventional object was sighted. One object was observed.

4 April 1973 - Blackwood, UK -   Dome lands near gov't training center. Vanishes.

4 April 1973 19:15 - Welch, California , USA -   A flying disc was observed. One disc, larger than a star, was observed by one witness in a city for two minutes (Welch).

4 April 1973 Evening - White Swan, Washington, USA -   Fire Lookout incident.

5 April 1973 - Lauderdale, Tasmania, Australia -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed.

5 April 1973 18:50 - North Hollywood, California , USA -   Motion pictures. Explanation: Aircraft.

5 April 1973 19:30 - Shannock Hill, Rhode Island, USA -   An unusual object was sighted, that had unconventional appearance and performance. One object was observed by two experienced witnesses at a fire tower (Gardner).

5 April 1973 Around 2200 - Doniphan E10M, Missouri, USA -   Unusual objects were sighted, that had unconventional appearance and performance. Several objects were observed by more than two witnesses.

In early April 1973 22:00 - Bernie, Missouri, USA -   Nocturnal lights were observed by one male witness (Swafford).

6 April 1973 19:00 - Shannock Fire Tower, Rhode Island, 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 female witness on a highway for 20 minutes (Gardner).

6 April 1973 23:13 - Digby, UK -   An unusual object was sighted, that had unconventional appearance and performance. One object, the size of a star, was observed by one witness.

7 April 1973 21:25 - Tokyo, Japan -   An unusual object was sighted, that had unconventional appearance and performance. Nocturnal lights were observed by several witnesses for 20 minutes.

7 April 1973 Around 2200 - Piedmont, Missouri, USA -   Numerous objects were observed by one male witness for three hours (Baron). Explanation: Flare.

7 April 1973 22:00 - Alton, Rhode Island, USA -   An unusual object was sighted, that had unconventional appearance and performance. One object, twice the size of the moon, was observed by one female witness, an experienced observor, for 20 minutes (Sweet).

8 April 1973 19:30 - Croes-Penmaen Cruml, UK -   Hovered.

8 April 1973 20:35 - North Hollywood, California , USA -   Motion pictures

8 April 1973 21:00 - Providence Brookfiel, Rhode Island, USA -   A flying disc was observed. One disc was observed by several witnesses.

9 April 1973 00:15 - Rochester, Alberta, Canada -   A flying disc was observed. One disc was observed by two witnesses for six seconds (Szymanski).

9 April 1973 03:50 - Bulawayo, Zimbabwe -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by two experienced male witnesses (as reported to the police) for 30 seconds (Mommsen).

9 April 1973 22:00 - Casterton, Victoria, Australia -   One object was observed by more than four witnesses.

9 April 1973 22:10 - Bendigo, Victoria, Australia -   Several objects were observed (Harris).

9 April 1973 22:10 - Balmoral, Wau, Victoria, Australia -   Several objects were observed.

9 April 1973 22:54 - Kuurne, Belgium -   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 (Hulle).

9 April 1973 Night - Queensland, Australia -   10 objects were observed by several witnesses.

10 April 1973 19:00 - Tarzana, California , USA -   Unusual objects were sighted, that had unconventional appearance and performance. Three objects were observed. Explanation: Blimp.

10 April 1973 Evening - Bernie, Missouri, USA -   Sheriffs incident.

10 April 1973 22:05 - East Moonah, Tasmania, Australia -   An unidentified object was sighted, that had an unusual appearance or performance. One object, larger than a star, was observed by one male witness for 18 seconds.

11 April 1973 22:30 - Newport, Rhode Island, USA -   An unusual object was sighted, that had unconventional appearance and performance. One object was observed by several witnesses. Explanation: Aircraft.

12 April 1973 08:30 - Piedmont, Clark Mtn Ne, Missouri, USA -   Physicist and one other in light plane. Nocturnal light moves, then shot straight up. Acceleration estimated at 330 G's.

12 April 1973 21:00 - Ludlow State Park, Massachusetts, USA -   Motion pictures

13 April 1973 - Black River, Missouri, USA -   Nocturnal lights were observed by a male witness (Rutledge).

13 April 1973 19:20 - Brushy Creek, Missouri, USA -   Nocturnal lights were reported.

13 April 1973 21:15 - Southern Part, Rhode Island, USA -   An unusual object was sighted, that had unconventional appearance and performance. One object was observed by one experienced male witness (Todd).

14 April 1973 01:56 - Stover, Missouri, USA -   Nocturnal lights were observed by one witness for over four minutes.

14 April 1973 20:22 - Berghaupten, Germany -   An unusual object was sighted, that had unconventional appearance and performance. One object, the size of a star, was observed by one witness for 14 minutes (Geppert).

14 April 1973 21:00 - Lewisville (Louisville), Tennessee, USA -   Nocturnal lights were observed by several witnesses.

14 April 1973 22:15 - Berthierville, Quebec, Canada -   Landed remotely.

15 April 1973 04:20 - Heligoland Sw30M, Sweden -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed for 20 minutes (Fridh).

15 April 1973 Night - Monson, Massachusetts, USA -   Motion pictures

16 April 1973 02:45 - Butler, Pennsylvania, USA -   Procession of objects.

16 April 1973 21:00 - Beloeil, Quebec, Canada -   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 for six seconds (Blaquiere).

17 April 1973 - Los Molinos, California , USA -   Unidentified but otherwise conventional objects were sighted. Two objects were observed by one male 31-year-old witness at a mountain for a few seconds.

17 April 1973 05:05 - Ottershaw, 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 witness.

17 April 1973 20:20 - Beloeil, Quebec, Canada -   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 for six seconds.

18 April 1973 04:35 - Puerto Cruz, Atlantic -   Hovered.

18 April 1973 20:40 - Beloeil, Quebec, Canada -   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 (Blaquiere).

19 April 1973 20:30 - Flat River, Missouri, USA -   Reporter incident.

19 April 1973 21:30 - Brunsville, Iowa, USA -   Nocturnal lights were observed by five witnesses.

20 April 1973 22:10 - Lewisville (Louisville), Tennessee, USA -   Nocturnal lights were observed by 30 witnesses.

21 April 1973 - Blackwood, New Jersey, USA -   Nocturnal lights were reported (Egbert).

21 April 1973 19:30 - Beckemeyer, Illinois, USA -   Four objects were observed by two witnesses.

22 April 1973 03:00 - Mahaena, Pacific -   Nocturnal lights were reported on the shore.

22 April 1973 20:00 - Papeete, Pacific -   SS Philippine Bear incident.

23 April 1973 20:45 - Avon Hwy36, Indiana, USA -   Objects were observed using optical instruments. Two objects, larger than a star, were observed in clear weather by one male witness at an electric plant for over one minute (Gentry). Explanation: Star.

23 April 1973 Around 2100 - Collinsville, Illinois, USA -   An unidentified object was sighted, that had an unusual appearance or performance. One object was observed by several male witnesses, typical age 15.

23 April 1973 22:30 - Richwoods, Missouri, USA -   Nocturnal lights were observed by four witnesses.

23 April 1973 Night - Krugersdorp N, South Africa -   One object was observed.

In late April 1973 Evening - Ste Genevieve, Missouri, USA -   Low flying object with multi colored lights. First thought was helicopter but no noise heard, lights were not rotating, reached point in sky and disappeared.

26 April 1973 21:25 - Hornby Island, British Columbia, Canada -   A hovering object was observed. One object was observed by four male witnesses for over 15 minutes (Holmes).

27 April 1973 23:30 - Glover, Missouri, USA -   UFO hung over smelting and refining plant, triangle shaped with two red, one green light. Green light reduced in size, all three started blinking, went to the north over Highway 21. Big as two cars.

28 April 1973 03:30 - Boca Chica, Dominican Republic -   Cigar-shaped objects were observed. Multiple independent witnesses. Six cigar-shaped objects were observed by two witnesses.

28 April 1973 20:50 - Arapahoe Dit, Colorado , USA -   Balloon-like objects observed. More than two balls, twice the size of the moon, were observed by four witnesses for 12 seconds (Redenbaugh). Explanation: Prank.

29 April 1973 After midnight - Port Hedland, Western Australia, Australia -   UFO hung in one place for 15 minutes, then rose high into sky, out of sight. Seen in 5 communities by independent witnesses.

29 April 1973 After midnight - Goomalling, Western Australia, Australia -   UFO hung in one place for 15 minutes, then rose high into sky, out of sight. Seen in 5 communities by independent witnesses.

29 April 1973 After midnight - Karratha, Western Australia, Australia -   UFO hung in one place for 15 minutes, then rose high into sky, out of sight. Seen in 5 communities by independent witnesses.

29 April 1973 After midnight - Konnongorring, Western Australia, Australia -   UFO hung in one place for 15 minutes, then rose high into sky, out of sight. Seen in 5 communities by independent witnesses. Chidren drew sketches.

29 April 1973 22:15 - Penn, Pennsylvania, USA -   Hovered.

29 April 1973 Around 2300 - Shamokin, Pennsylvania, USA -   Landed remotely

29 April 1973 23:15 - Ferndale, Pennsylvania, USA -   Landed remotely. (Ambiguous location - more than one place with this name).

In May 1973 - -   An unusual object was sighted, that had unconventional appearance and performance. One object, the size of a star, was observed by several male experienced military witnesses on the ocean (Frank).

30 April 1973 21:06 - Illinois, USA -   Nocturnal lights were observed by two witnesses.

30 April 1973 21:55 - Brent.Montreux, Switzerland -   An aircraft-like object was observed. One aircraft-like object was observed by one witness (Mercier). Explanation: Aircraft.

2 May 1973 19:25 - Bodensee, Switzerland -   Balloon-like object observed. One ball was observed by numerous witnesses. Explanation: Balloon.

2 May 1973 20:05 - Zurich Kloten, Switzerland -   Balloon-like object observed. One ball was observed by several witnesses. Explanation: Balloon.

2 May 1973 Night - Raf Leuchars, UK -   Crew of RAF Canberra fighter sight Concorde shaped UFO at 38,000', hovering, had lights flashing all around perimeter. On return they approach it, it became brilliant light, shot away rapidly to the south, gone two seconds.

3 May 1973 Around 2200 - Brent.Montreux, Switzerland -   An aircraft-like object was observed. One aircraft-like object was observed by one witness.

4 May 1973 20:15 - Straubing, Germany -   Unusual objects were sighted, that had unconventional appearance and performance. Several objects, larger than a star, were observed by four witnesses for three hours (Schreiblmeier).

4 May 1973 21:20 - Pyles Mtn, Missouri, USA -   Photo: 10 second time exposure, should have shown streak, instead has scattered spots.

5 May 1973 00:00 - Corning E Hwy99, California , USA -   One object was observed by two witnesses on a highway (Cerny).

5 May 1973 21:10 - Erie, Pennsylvania, USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed for over one minute.

5 May 1973 22:00 - Depew, New York, USA -   Nocturnal lights were reported (Ferrantino).

6 May 1973 02:00 - Headington, UK -   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.

6 May 1973 20:32 - Gladstone Boles St, Queensland, Australia -   UFO traveling slowly at 30,000 feet changed course to the south, flashing at irregular intervals. Suddenly it dropped a small light, which shot north. Main light made abrupt turn, zig-zagged to the east.

7 May 1973 Pre-dawn - Ten Mile W 3M, California , USA -   Submerged object with light.

7 May 1973 21:30 - Brighton, Ontario, Canada -   Lights seen by dozens on both sides of Lake Ontario. Meteorologist says not reflection of city lights from clouds, clouds too high.

7 May 1973 21:30 - Rochester, New York, USA -   Lights seen by dozens on both sides of Lake Ontario. Meteorologist says not reflection of city lights from clouds, clouds too high.

7 May 1973 22:25 - Beloeil, Quebec, Canada -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Eight objects were observed by one witness for 12 seconds (Blaquiere).

8 May 1973 Evening - Rochester, New York, USA -   Nocturnal lights were observed by witnesses (as reported to the police) at a lake (Riddell).

9 May 1973 18:45 - Ballarat E, Russell Square, Victoria, Australia -   Glowing object sighted from car by 12-year-old girl. Red glow, saw for few seconds moving rapidly to the south.

9 May 1973 21:15 - Delmont, Pennsylvania, USA -   Hovered.

10 May 1973 19:55 - Palmerston North, New Zealand -   11-yr-old girl and father see dark cylinder between two flickering lights. Hovered over apartment building. Later only one light showed, it climbed vertically and hid behind cloud. When cloud moved it gone

11 May 1973 20:10 - Cape Girardeau, Missouri, USA -   Seven nocturnal lights in a row, three separate nocturnal lights pulsate at 1hz for 45 seconds.

11 May 1973 21:40 - Harrison City, Pennsylvania, USA -   Procession of objects.

12 May 1973 - Wadenswil, Switzerland -   Photo

12 May 1973 14:30 - Hokowhitu Golfcour, New Zealand -   Single witness save hovering light over Hokowhitu golfcourse, near Palmerston.

12 May 1973 16:45 - Palmerston North, New Zealand -   Lone witness saw hovering light that suddenly dematerialized in the sky just south of the Longburn flyover.

12 May 1973 22:00 - Hermitage, Missouri, USA -   Nocturnal lights were reported.

12 May 1973 22:00 - Lourenco Marques, Mozambique -   Object gyrated in sky over harbor for over one hour in pre-dawn hours.

12 May 1973 After 2200 - Piedmont, Missouri, USA -   Amber light moved parallel to horizon, suddenly disappeared as though "someone had pulled a light switch."

13 May 1973 - Munchen, Germany -   Balloon-like object observed. One ball, about 150 feet across, was observed by a male witness. Explanation: Balloon.

13 May 1973 - Tangimoana S, New Zealand -   Two reported seeing two brilliant lights near Himatangri, while travelling south of Tangimoana.

13 May 1973 20:30 - New Salem, Massachusetts, USA -   Motion pictures

13 May 1973 21:35 - Fontanivent, Switzerland -   A cigar-shaped object was observed. One cigar-shaped object was observed by three witnesses (Mercier).

14 May 1973 18:50 - Rodhos (Rhodes), Greece -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Six objects, the size of a star, were observed by two witnesses on the shore (Bosse).

14 May 1973 20:30 - Figeac, France -   Viewed through telescope. Dark, indistinct ovoid with lights hovers for 20 minutes, then fades away.

14 May 1973 21:42 - Atlanta, Georgia, USA -   Procession of objects. Explanation: Satellite.

14 May 1973 Around 2300 - Claremore E 8M, Oklahoma, USA -   Blue light reported over ranch, just disappeared and "never looked like it touched the ground". Sheriff thought it was meteor. Explanation: Meteor.

15 May 1973 00:24 - Indio, Coachella Valley, California , USA -   Deputy incident. Explanation: Fireball.

In mid-May 1973 01:30 - Tacoma, Mccord Afb, Washington, USA -   No noise and hovering close to Air Base

15 May 1973 06:30 - Blenheim, New Zealand -   Bright light, gold in color and higher and faster than aircraft, moved west to the east, followed by three smaller lights in a line. Possibly burnt-out Skylab rocket booster re-entering atmosphere. Explanation: ReEntry.

15 May 1973 06:40 - Alexandra, New Zealand -   Couple watch large round ball with white lights, half circle of haze on each side, travel down the Manuherikia Valley.

15 May 1973 06:43 - Karaka Point E, New Zealand -   Intense white light hovered over Marlborough Sounds, radiating lights like effect produced by magnet and iron filings. Apparent size larger than full moon. Moved away rapidly to the east. Viewed with binoculars.

15 May 1973 23:00 - Shannon, Ireland -   Many watched a bright stationary object high in the sky. Explanation: EM.

15 May 1973 23:00 - Malin Head, Ireland -   An unidentified but otherwise conventional object was sighted. One object was observed by a male witness.

15 May 1973 23:30 - Cottingham, UK -   Sole observer watched an object first round in shape, but later assuming a cigar-like configuration.

16 May 1973 21:30 - Tarcienne, Belgium -   13 oddly moving lights were seen passing over Tarcienne.

16 May 1973 Around 2200 - Brent.Montreux, Switzerland -   An aircraft-like object was observed. One aircraft-like object was observed. Explanation: Aircraft.

16 May 1973 23:37 - Klm 794, Atlantic -   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 on the ocean for over two minutes (Visser).

17 May 1973 06:25 - Rangitoto, New Zealand -   Two saw moving star like object (possibly Skylab) pass over. Explanation: Satellite.

17 May 1973 06:45 - Temuka, New Zealand -   Seven bright star-like objects passed over city in procession west to the east, as one would get directly overhead another would appear in west.

17 May 1973 Morning - Longburn, New Zealand -   Three saw two bright lights over the Longburn freezing works.

18 May 1973 06:05 - Newtown, South Africa -   D. J. Scheepers saw a round object from the Market Street bus depot.

18 May 1973 Morning - Palmerston East, New Zealand -   Freezing Works incident.

18 May 1973 19:30 - Pyles Mtn, Missouri, USA -   Nocturnal light flew straight at witnesses. Made 90 degree turn when close, several photos.

18 May 1973 20:08 - Laurieton, New South Wales, Australia -   UFO with slight zig-zag motion seen through binoculars, second light appeared at 20:30. Changed color from red to orange.

18 May 1973 21:00 - Springfield, Missouri, USA -   Lone witness watched a cylindrical object in sky.

18 May 1973 22:00 - Pekin, Illinois, USA -   Family watches domed object with orange glow and pulsating motion hover, circle city at treetop level.

18 May 1973 Around 2200 - Brent.Montreux, Switzerland -   An aircraft-like object was observed. One aircraft-like object was observed by one witness. Explanation: Aircraft.

19 May 1973 - Kalispell, Montana, USA -   Nocturnal lights were reported (Jones).

19 May 1973 Around midnight - Des Arc, Missouri, USA -   Several lights were observed by several witnesses at a mountain for two minutes.

19 May 1973 01:00 - Edmonton, Alberta, Canada -   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 four witnesses for 90 seconds (McDonough).

19 May 1973 19:55 - Istanbul E60Nm, Turkey -   Menahem El Al 581 incident.

19 May 1973 21:00 - Springfield, Missouri, USA -   Blue cylindrical shaped UFO made low pass over Springfield. Seen again after midnight.

19 May 1973 22:00 - Assebroek, Belgium -   Photo of strange light in sky.

20 May 1973 00:10 - Springfield, Missouri, USA -   Blue cylindrical shaped UFO made fast, low pass over Springfield, moving northwest. Seen earlier around 9 p.m.

20 May 1973 04:15 - North Sea, North Euopre -   Dodge Boac68796 incident.

20 May 1973 Around 0600 - Motu, New Zealand -   Hunters incident.

20 May 1973 Around 0600 - Kaikoura S, Hundalee Hills, New Zealand -   Object with green light in center, revolving white lights, moved with up/down motion, hovered, each time it moved it rose up with circle of flashing lights.

20 May 1973 19:45 - Brent.Montreux, Switzerland -   A flying disc was observed. One disc was observed by one witness.

20 May 1973 20:00 - Marino, South Australia, Australia -   Object with fins or wings, to the north.

20 May 1973 21:30 - Straubing, Germany -   One object, the size of the moon, was observed by two witnesses for 20 minutes (Schreiblmeier).

24 May 1973 21:37 - Piedmont, Missouri, USA -   An object was observed using optical instruments. One object was observed by four male witnesses, typical age 50, at a dump (Sage).

24 May 1973 22:00 - Farmington, Missouri, USA -   An object was observed using optical instruments. One delta-shaped object was observed by four male witnesses, typical age 50, at an airport for over one minute (Rutledge).

24 May 1973 23:30 - Brent.Montreux, Switzerland -   An aircraft-like object was observed. One aircraft-like object was observed by four witnesses (Mercier).

25 May 1973 19:00 - Fredericktown, Missouri, USA -   Scientist Team incident.

25 May 1973 20:08 - Johannesburg, South Africa -   Two watched a large cigar-shaped object over Hyde Park.

25 May 1973 22:00 - Oelwein, Iowa, USA -   Nocturnal lights were observed by two witnesses for 20 minutes.

25 May 1973 22:05 - Woodley, UK -   Two reported seeing multicolored light pass over Woodley, near Reading.

25 May 1973 23:00 - Brent.Montreux, Switzerland -   An aircraft-like object was observed. One disc was observed by two witnesses.

27 May 1973 02:00 - Feignies, France -   Dark, slow, silent cylinder blocks stars in sky. Had two long windows. Shoots rapidly to the southeast.

27 May 1973 19:30 - Sunrise Beach, Missouri, USA -   Cigar-shaped objects were observed. Four cigar-shaped objects were observed by three witnesses for 30 minutes.

28 May 1973 22:04 - Konstanz, Germany -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by a male witness.

28 May 1973 23:00 - Noumea, Pacific -   Nocturnal lights were reported on the shore.

29 May 1973 After 2000 - South Plainfield, New Jersey, USA -   Motion pictures

30 May 1973 Around 2300 - Tryingham, New South Wales, Australia -   Unusual objects were sighted by multiple witnesses, that had unconventional appearance and aerobatic performance. Two objects were observed by three witnesses, two of them an experienced observors, for three hours (Ford; Tyler).

30 May 1973 Around 2300 - Dundurrabin, Australia -   Unusual objects were sighted by multiple witnesses, that had unconventional appearance and aerobatic performance. Two objects were observed by two witnesses, a married couple (Cuthel).

In June 1973 01:00 - Sofiya, Bulgaria -   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 one female witness in a city briefly.

In June 1973 Dusk - Leawood, Kansas, USA -   Unidentified objects were sighted by mutliple independent witnesses, but with appearance and behavior that most likely would have a conventional explanation. More than two objects, the size of a star, were observed by two female witnesses (Pfeifer).

31 May 1973 19:30 - Mount Gambier, South Australia, Australia -   To the east northeast .

31 May 1973 Around 2100 - Brooklyn, New York, USA -   Unidentified but otherwise conventional objects were sighted. Two objects were observed by several witnesses.

2 June 1973 02:15 - Divernon, Illinois, USA -   An unidentified object was sighted, that had an unusual appearance or performance. One orange star was observed by several witnesses for over 15 minutes.

2 June 1973 Evening - Campinas, Brazil -   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.

2 June 1973 20:50 - Sint-Pieters-Leeuw, Belgium -   A flying disc was observed. One disc was observed by one witness (Corbesier).

2 June 1973 Around 2300 - West Haven, Connecticut, USA -   Procession of objects.

4 June 1973 02:00 - Alton, Illinois, USA -   One object was observed by two witnesses.

5 June 1973 Evening - La Salle, Colorado , USA -   Three red objects moved east to west over Greeley. Viewed through telescope, appeared to be red discs with inner lights of green and white. No sound, even through "big ear" amplification device.

6 June 1973 21:30 - Salem, Iowa, USA -   Nocturnal lights were observed by two witnesses.

6 June 1973 22:05 - Woodley, UK -   Diamond-shaped UFO observed at low altitude.

7 June 1973 Evening - Greeley, Colorado , USA -   Another family reported sighting bright red objects flying over Greeley, had blue and green lights attached to some kind of wing, flew low and slow. No sound.

8 June 1973 - Magnolia, Illinois, USA -   Nocturnal lights were observed by two witnesses.

8 June 1973 Evening - Loveland, Colorado , USA -   A flying disc was observed before it exploded. One disc was observed by more than two witnesses.

9 June 1973 21:45 - Mount Pleasant, Iowa, USA -   Nocturnal lights were observed by one witness.

9 June 1973 Night - Lourenco Marques, Mozambique -   Rash of UFO sightings from harbor and night club district.

10 June 1973 03:45 - Pittsburgh, Pennsylvania, USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. Nocturnal lights were reported for two minutes. Explanation: Satellite.

10 June 1973 22:45 - Niagara Falls, New York, 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 one witness.

10 June 1973 22:45 - Otter Heights, Ontario, Canada -   Object had three white revolving lights and bright red light "like the setting sun." It moved slowly, hovered, made no sound. Crescent shaped.

11 June 1973 Around 2200 - Moe, Victoria, Australia -   One object was observed by numerous witnesses.

12 June 1973 21:00 - Irwin, Pennsylvania, USA -   A pentagon of 5 red lights heading west . Explanation: Star.

12 June 1973 23:48 - Lausanne, Switzerland -   A mysterious explosion was reported. One cigar-shaped object was observed by one witness (Perret-Gentil). Explanation: Psych.

13 June 1973 00:45 - Sunbury, Pennsylvania, USA -   Hovered.

13 June 1973 Evening - La Salle, Colorado , USA -   Four more sightings made on this date. Same as earlier reports: 3-4 bright red objects flying in formation east to west.

13 June 1973 22:00 - Blair Athol, South Australia, Australia -   Moved towards ESE, vanished.

13 June 1973 22:22 - Luxor, Pennsylvania, USA -   An unidentified but otherwise conventional object was sighted. One object was observed for two minutes.

13 June 1973 22:30 - Chanute, Kansas, USA -   Father and son saw slow moving light in sky, moved fairly rapidly west to east. Thought to be Skylab. Explanation: Satellite.

14 June 1973 00:45 - Sunbury, Pennsylvania, USA -   Blue flashing light seen hovering in sky, bright, like fireworks. Ball or cone shaped, spun like top, flashed blue every four seconds. Viewed through binoculars. Abruptly turned, went to the east.

14 June 1973 Around 0100 - Serra.Cabras, Brazil -   An unusual object was sighted, that had unconventional appearance and performance. One object, larger than a star, was observed by over 50 witnesses, typical age 16 (Gilmar).

14 June 1973 02:00 - West Palmer, Maryland, USA -   An unidentified but otherwise conventional object was sighted. One object was observed by several witnesses.

14 June 1973 02:00 - Jackson, Michigan, USA -   Light watched from two a.m. until dawn. At one point left a faint trail of sparks, hung in southeast sky. Called police, cop Mike Curry watched it for several minutes.

In mid-June 1973 01:30 - Derby, UK -   Procession of objects.

15 June 1973 03:38 - Princeton, Illinois, USA -   Nocturnal lights were observed by three witnesses.

In mid-June 1973 Evening - New Jersey, USA -   Motion pictures of luminous UFO.

15 June 1973 22:40 - Brent.Montreux, Switzerland -   A mysterious explosion was reported. Nocturnal lights were observed by one witness.

In mid-June 1973 Night - Bergheim, Austria -   Nocturnal lights were reported.

In mid-June 1973 Night - Purcell, Oklahoma, USA -   Photo

16 June 1973 - New Athens, Illinois, USA -   Nocturnal lights were reported.

16 June 1973 23:30 - Brent.Montreux, Switzerland -   An aircraft-like object was observed. One aircraft-like object was observed by one witness.

17 June 1973 01:30 - Derby, UK -   Five objects, the size of a star, were observed by more than one male witness, one of them an experienced observor (Morrison).

17 June 1973 02:30 - Warminster, UK -   Unusual objects were sighted, that had unconventional appearance and performance. More than two objects were observed by several witnesses.

17 June 1973 Night - Westchester, Illinois, USA -   Square light with two fiery tails high in sky. Seemed to hover, when they drove underneath it all they could see was bright red light, then nothing.

18 June 1973 18:15 - Durban, South Africa -   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.

18 June 1973 19:40 - St Legier, Switzerland -   A cigar-shaped object was observed. One cigar-shaped object was observed by one witness (Thevoz).

18 June 1973 21:20 - Mccomb Jackson Hwy, Mo, Mississippi, USA -   Looked like ball of fire falling, in sight only a few seconds. Mother saw its reflection off the hood of the car. Explanation: Meteor.

19 June 1973 01:30 - Lompoc, California , USA -   An unusual object was sighted by multiple witnesses, that had unconventional appearance and aerobatic performance. One object was observed by several witnesses.

19 June 1973 01:30 - Santa Maria, California , USA -   One object was observed by several witnesses.

19 June 1973 02:45 - Ancerville-Gue, France -   Unusual objects were sighted, that had unconventional appearance and performance. Three objects, the size of a star, were observed by two witnesses for 90 seconds (Roger).

19 June 1973 22:30 - Maple Island, Md, Minnesota, USA -   One object was observed by one witness.

19 June 1973 22:30 - Muskegon, Michigan, USA -   UFO sighted by single witness, police called. By the time they arrived it had moved on.

20 June 1973 21:00 - Salzburg, Austria -   Nocturnal lights were reported.

20 June 1973 23:30 - Prince George, British Columbia, Canada -   Looked like huge helicopter with lights inside, flew west to east for four minutes, stopped to hover, then shot straight up out of sight. Several calls.

21 June 1973 22:23 - Westmont, Pennsylvania, 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 for two minutes.

22 June 1973 01:00 - Wellingborough, UK -   Procession of objects.

22 June 1973 23:50 - Kent, UK -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Electromagnetic effects were noted. Two objects were observed by one male witness (Dempster).

23 June 1973 21:23 - Jeannette, Pennsylvania, USA -   An unidentified object was sighted, that had an unusual appearance or performance. One object was observed for five minutes. Explanation: Jupiter.

23 June 1973 21:30 - Salzburg, Austria -   Nocturnal lights were reported.

23 June 1973 22:30 - Moscow Mountain, Idaho, USA -   Bright red and blue flashing light above mountain around 10:30 p.m. Disappeared after Sheriff's office was notified.

23 June 1973 22:30 - New Athens N, Illinois, USA -   Photo (time exp). 5 UFOs with flashing red, green, white lights. three were in V formation, fourth zoomed into the center, fifth was nearby. four suddenly disappeared when dawn approached, but one went away gradually.

23 June 1973 22:30 - Piedmont, Rothwell Ranch, Missouri, USA -   Bright light rose from low on ESE horizon, moved up-down, left-right, distance of 15 degrees in 30 minutes. Radiated lines of concentric circles like heat waves. Small light joined it. Had ring around

23 June 1973 22:40 - Evergem, Belgium -   A flying disc was observed. One disc was observed by three witnesses for five minutes.

24 June 1973 01:15 - St-Basile, Quebec, Canada -   One object was observed by 12 witnesses for three hours (Choquette).

24 June 1973 Morning - London Acton, UK -   An unusual object was sighted, that had unconventional appearance and performance. One object was observed by two witnesses.

24 June 1973 Evening - Jefferson City, Missouri, USA -   Nocturnal lights were reported.

25 June 1973 00:01 - Kenogami Lake Ne2M, Ontario, Canada -   An unidentified object was sighted, that had an unusual appearance or performance. One object was observed by one witness at a lake for 18 seconds (Kulas).

25 June 1973 00:05 - Kirkland Lake Hwy66, Ontario, Canada -   Green shapeless blob, landed remotely, 8 miles west on highway 66. Passed from sight behind treeline. Huge, had trailing green flames behind it..

25 June 1973 20:43 - Uraidla, South Australia, Australia -   Moving southwest .

25 June 1973 Night - Brent.Montreux, Switzerland -   Procession of objects.

26 June 1973 After 2200 - Greensburg, Pennsylvania, USA -   An unusual object was sighted, that had unconventional appearance and performance. One object was observed for over three minutes.

26 June 1973 22:15 - Fribourg, Switzerland -   Procession of objects.

26 June 1973 Night - Brent.Montreux, Switzerland -   Procession of objects.

27 June 1973 00:15 - Apollo, Pennsylvania, USA -   Hovered.

27 June 1973 00:15 - Avonmore, Pennsylvania, USA -   One object was observed for over one minute.

27 June 1973 Pre-dawn - Alberta Beach, Alberta, Canada -   Procession of objects. Explanation: Satellite.

28 June 1973 03:20 - Hannibal, Missouri, USA -   One object was observed by one witness for over three minutes.

28 June 1973 03:20 - Monroe City Hwy36, Missouri, USA -   One object was observed by one witness on a highway.

28 June 1973 21:10 - New York, New York, USA -   Two objects were observed in cloudy weather by over 11 witnesses for several hours.

28 June 1973 22:30 - Brent.Montreux, Switzerland -   Procession of objects.

28 June 1973 22:30 - Iron Acton, UK -   Unusual objects were sighted, that had unconventional appearance and performance. Two objects were observed by one witness.

29 June 1973 Pre-dawn - Alberta Beach, Alberta, Canada -   Procession of objects. Explanation: Satellite.

29 June 1973 Morning - Kettering, UK -   Procession of objects.

29 June 1973 22:15 - Brent.Montreux, Switzerland -   An aircraft-like object was observed. One aircraft-like object was observed by one witness.

29 June 1973 Night - Cumberland, UK -   One object was observed.

29 June 1973 Night - Appleby, UK -   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 several witnesses.

In Mid- 1973 - Sofiya, Bulgaria -   An unusual object was sighted by multiple witnesses, that had unconventional appearance and aerobatic performance. One object was observed by more than two witnesses in a city.

In July 1973 - Ste-Dorothee, Quebec, Canada -   Nocturnal lights were observed by a male witness (Boisvert).

In Mid- 1973 - West Flamboro, Ontario, Canada -   Nocturnal lights were reported.

In Mid- 1973 - Blackhawk, Colorado , USA -   It was, i believe, the summer of 1973, my brother and i were born in california, my brother born in 1959,,, I

In July 1973 11:05 - Medford, Massachusetts, USA -   An object was observed using optical instruments. One disc, about 80 feet across, was observed in clear weather by more than one male witness in the suburbs for several hours (Gordon; Steamer).

In July 1973 19:30 - Burlingame, California , USA -   An unidentified object was sighted, that had an unusual appearance or performance. One object, the size of a star, was observed in clear weather by one witness at a mountain for five minutes. Explanation: Re-entry.

In Mid- 1973 Evening - Edmonton, Alberta, Canada -   Flying discs were observed. Three discs were observed by two witnesses for six seconds (Atkinson).

In Mid- 1973 Evening - Wadena E 15M, Minnesota, USA -   An unidentified object was sighted, that had an unusual appearance or performance. One object was observed by four male witnesses, typical age 18, for over 15 minutes (Stemson).

In July 1973 22:30 - Flavigny-sur-Moselle, France -   Hissing sound. Pie-wedge shaped delta over house. Rotates in place.

In Mid- 1973 Night - Fulton, Missouri, USA -   Nocturnal lights were reported.

30 June 1973 23:00 - Bontddu, UK -   Six objects were observed by two witnesses.

In July 1973 Night - Langley AFB, Virginia , USA -   One object was observed by one male 37-year-old witness at an airfield (Evans).

In July 1973 23:30 - St Louis, Missouri, USA -   One object was observed for five minutes (Pashia).

In Mid- 1973 23:30 - Compton, UK -   One object was observed by several witnesses.

30 June 1973 23:30 - Stockton, UK -   One object was observed by more than six witnesses.

1 July 1973 01:30 - Stover, Missouri, USA -   Nocturnal lights were observed by two witnesses for over 15 minutes.

1 July 1973 22:00 - Blackball, New Zealand -   An unusual object was sighted, that had unconventional appearance and performance. One object, the size of a star, was observed by four male witnesses at a mountain for over four minutes (McBride).

1 July 1973 22:30 - Whittier, California , USA -   A flying disc was observed. One disc was observed by one witness (Kaller).

1 July 1973 Night - Brent.Montreux, Switzerland -   An aircraft-like object was observed. One aircraft-like object was observed by one witness.

2 July 1973 - Philadelphia Frnkln, Pennsylvania, USA -   A flying disc was observed. One disc was observed by two male witnesses, typical age 28, at a building (Taylor). Explanation: Hoax.

2 July 1973 03:30 - Risco, Missouri, USA -   Nocturnal lights were reported.

2 July 1973 Pre-dawn - Alberta Beach, Alberta, Canada -   Procession of objects. Explanation: Satellite.

2 July 1973 21:15 - Hallein, Austria -   Nocturnal lights were reported.

2 July 1973 22:30 - Irwin, Pennsylvania, USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed for over one minute.

2 July 1973 22:30 - Brent.Montreux, Switzerland -   A hovering object was observed. Nocturnal lights were observed by two witnesses.

3 July 1973 00:15 - Wingate, UK -   Two balls of light seen from Snaith Terrace.

3 July 1973 Pre-dawn - Alberta Beach, Alberta, Canada -   Procession of objects. Explanation: Satellite.

3 July 1973 Around 2100 - Excelsior Springs, Missouri, USA -   Light in southeast sky, like huge star, moved, faded in and out. Moved up-down, left-right, watched until 1:30 a.m. Had blue glow around it.

3 July 1973 21:45 - Jarrow, UK -   Multicolored disc seen by 5 young people, flew over Beverly Court.

3 July 1973 Around 2300 - Brent.Montreux, Switzerland -   An aircraft-like object was observed. One aircraft-like object was observed by a female witness.

4 July 1973 00:06 - Jeannette, Pennsylvania, USA -   An object identified as the planet Jupiter was observed. One object was observed for several hours. Explanation: Jupiter.

4 July 1973 Dusk - Weidman, Michigan, USA -   Eight nocturnal lights, "color of the moon", streak across sky, weaving, erratic flight path, often making sharp turns. Going both rapidly to the south and rapidly to the north, changed speeds. One of a series of sightings on multiple nights.

4 July 1973 Around 2200 - Brent.Montreux, Switzerland -   A flying disc was observed. One disc was observed by a female witness (Mercier).

4 July 1973 23:00 - Tarcienne, Belgium -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Several objects were observed.

5 July 1973 21:30 - La Follette, Tennessee, USA -   Sightings from various sites.

5 July 1973 21:40 - Irwin, Pennsylvania, USA -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Two objects were observed for two minutes.

In early July 1973 Around 2200 - Graz, Austria -   A hovering object was observed. Nocturnal lights were reported for five hours.

5 July 1973 23:00 - Excelsior Springs, Missouri, USA -   Light seen on two previous nights, came out later (2300h) and closer to horizon. Faded, moved slowly around in irregular pattern.

5 July 1973 23:00 - Excelsior Springs, Missouri, USA -   Light seen on two previous nights, came out later (2300h) and closer to horizon. Faded, moved slowly around in irregular pattern.

6 July 1973 01:39 - Erie, Pennsylvania, 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 at a lake for two minutes (Wildermath).

6 July 1973 20:45 - Jeannette, Pennsylvania, USA -   One object was observed for two minutes.

6 July 1973 22:00 - Fairfield, Illinois, USA -   One ball was observed by four witnesses.

6 July 1973 23:30 - Fonda, Iowa, USA -   Bright yellow light in southwest sky, moved slowly to the west northwest, changed colors yellow to red to blue. Seemed round.

7 July 1973 01:45 - Donegal, Pennsylvania, USA -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Two objects were observed for two minutes.

7 July 1973 20:30 - Ballarat, Victoria, Australia -   17-yr-old girl saw gray disc with red and white alternate flashing lights while walking home. UFO banked in arc overhead. Mother saw it leave as flashing red and white light in western sky.

7 July 1973 22:05 - Porthcothan Bay, UK -   Hovering cigar-shaped objects were observed. Three cigar-shaped objects were observed by two witnesses on the ocean for a few minutes (Good).

7 July 1973 22:30 - Marchiennes S N357, France -   Glow seen coming from marsh. 20m diameter disc with many small portholes around rim. Rises up, flies away.

8 July 1973 Around midnight - Adrian 2M, Pennsylvania, USA -   Bright, motionless, unblinking light, estimated as bright as 100-watt light bulb. Explanation: Planet.

8 July 1973 21:40 - Cape Girardeau, Missouri, USA -   One light was observed by one witness for over one minute (Rutledge).

8 July 1973 23:00 - Sedalia, Missouri, USA -   Nocturnal lights were observed by two witnesses.

9 July 1973 01:10 - Heywood, UK -   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.

9 July 1973 21:00 - Mount Ohmori, Japan -   Unusual objects were sighted, that had unconventional appearance and performance. Several objects, the size of the moon, were observed by 50 witnesses at a mountain for four hours.

9 July 1973 Around 2300 - Nagai, Japan -   Photo of luminous UFO

10 July 1973 03:30 - Mar del Plata, Argentina -   Nocturnal lights were reported.

10 July 1973 19:30 - Angle Park, South Australia, Australia -   To the southeast.

11 July 1973 16:00 - Anzin, France -   Three 3m diameter blue metallic spheres hover over trees. Witness panics and falls down. Spheres vanish.

11 July 1973 21:45 - New Halls Ferry, Missouri, USA -   Possible sighting of Skylab space station. Explanation: Satellite.

12 July 1973 22:53 - Assebroek, Belgium -   Two objects were observed.

13 July 1973 03:30 - Emden, Missouri, USA -   Nocturnal lights were reported.

13 July 1973 22:15 - Ibiza, Spain -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Two objects, the size of a star, were observed by two witnesses.

13 July 1973 22:30 - Jeannette, Pennsylvania, USA -   Hovered. Explanation: Meteor.

13 July 1973 23:40 - Jessup, Moosic Mtn, Pennsylvania, USA -   Police incident. Explanation: Balloon.

14 July 1973 00:10 - Jeannette, Pennsylvania, USA -   Hovered.

14 July 1973 00:26 - Latrobe, Pennsylvania, USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed for two minutes. Explanation: Meteor.

14 July 1973 19:40 - Mount Gambier, South Australia, Australia -   To the east.

14 July 1973 20:45 - Moon, Space -   An object was observed using optical instruments in Grinaldi. One object, larger than a star, was observed by one male 28-year-old witness for ten minutes (Taylor). Explanation: Hoax.

14 July 1973 22:00 - Hermitage, Missouri, USA -   Nocturnal lights were reported.

In mid-July 1973 03:30 - Porthcothan Bay, UK -   An unidentified but otherwise conventional object was sighted. One object, larger than a star, was observed by one female witness in a yard (Good).

15 July 1973 Night - Madison, Wisconsin, USA -   Balloon-like object observed. One ball, the size of a star, was observed by more than one witness. Explanation: Balloon.

17 July 1973 20:25 - Jeannette, Pennsylvania, USA -   Photo

17 July 1973 23:23 - Oakland, Ramapo Mtns, New Jersey, USA -   Six calls to police. UFO hovered, then zig-zagged slowly about for 10 minutes before disappearing into the clouds.

18 July 1973 22:11 - Latrobe, Pennsylvania, USA -   A flying disc was observed. One disc was observed for over one minute.

19 July 1973 21:30 - Brunsville N3M, Iowa, USA -   Bright red object suddenly appeared in northwest sky "from nowhere." low altitude, oblong shaped, then vanished. At least 3-4 separate witnesses.

19 July 1973 22:30 - Equihen-Plage, France -   Orange-red ball flies south to north over sea. Rises into cloud, gone from sight.

20 July 1973 Around midnight - Sint Andries, Belgium -   One object was observed.

20 July 1973 Evening - Satus Peak, Sopelia, Washington, USA -   Fire Lookouts incident.

21 July 1973 21:45 - Satus Peak, Washington, USA -   Ghost lights.

21 July 1973 23:44 - Stuttgart-Sued, Germany -   Nocturnal lights were reported (Schollich).

22 July 1973 After midnight - Piedmont, Missouri, USA -   One object was observed for 30 minutes (Sedivec).

22 July 1973 21:50 - La Follette, Tennessee, USA -   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.

23 July 1973 17:47 - Tullamarine, Victoria, Australia -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One disc was observed by several witnesses at an airfield.

23 July 1973 17:47 - Melbourne, Victoria, Australia -   A flying disc was observed. One disc was observed by several witnesses.

24 July 1973 23:45 - Satus Peak, Washington, USA -   Fire Lookout incident.

25 July 1973 - Marble Falls, Texas, USA -   An unusual object was sighted, that had unconventional appearance and performance. One object was observed by three experienced witnesses for 45 minutes.

In late July 1973 - Oak Ridge, Tennessee, USA -   Nocturnal lights were observed by a female witness near a nuclear test site (Guyton).

25 July 1973 22:30 - Bixby Se5M, Missouri, USA -   One object was observed by a male witness for several minutes (Girresch).

26 July 1973 21:30 - Hannastown, Pennsylvania, USA -   Landed remotely.

26 July 1973 21:45 - Putte, Belgium -   An unusual object was sighted, that had unconventional appearance and performance. One object, the size of a star, was observed.

28 July 1973 01:10 - Jeannette, Pennsylvania, USA -   A flying disc was observed. One disc was observed for over one minute.

28 July 1973 23:00 - Newton Abbot, UK -   Nocturnal lights were reported.

29 July 1973 22:30 - Tjappsaive S2K, Sweden -   Hovered.

29 July 1973 Night - Orting, Washington, USA -   An unusual object was sighted, that had unconventional appearance and performance. One object was observed by more than two witnesses.

30 July 1973 21:30 - Danville, Virginia , USA -   One object was observed by a male witness.

30 July 1973 21:30 - Knoxville, Tennessee, USA -   One object was observed by a male witness.

30 July 1973 21:30 - Raleigh, North Carolina, USA -   One object was observed by a male witness.

30 July 1973 21:30 - Winston-Salem, North Carolina, USA -   One object was observed by a male witness.

30 July 1973 21:30 - Mount Airy, North Carolina, USA -   One object was observed by six witnesses.

30 July 1973 21:30 - Asheville, North Carolina, USA -   One object was observed by a male witness.

30 July 1973 23:30 - Stockton On Tees, UK -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object, five times the size of the moon, was observed by more than six witnesses for ten minutes.

In August 1973 - Rossland, British Columbia, Canada -   Nocturnal lights were observed by a female witness (Drumbell).

In August 1973 Evening - Grubisno Polje, Croatia -   An unusual object was sighted, that had unconventional appearance and performance. One object, the size of a star, was observed by two witnesses.

31 July 1973 22:30 - Hogsby, Sweden -   Cigar-shaped objects were observed. Four cigar-shaped objects were observed by four witnesses for three hours (Rudberg).

3 August 1973 00:14 - Murraysville, Pennsylvania, USA -   A cigar-shaped object was observed. One cigar-shaped object was observed for over one minute.

3 August 1973 20:40 - Essex, Missouri, USA -   A cigar-shaped object was observed. One cigar-shaped object was observed by witnesses (as reported to the police) for two minutes (Mouser). No sound was heard.

3 August 1973 21:30 - Villeneuve-sur-Lot, France -   Brightly lit football ascends into sky in staircase maneuvers. Halts at corners in step-function climb.

4 August 1973 21:25 - Harrison City, Pennsylvania, USA -   Hovered.

4 August 1973 22:27 - New Alexandria, Pennsylvania, USA -   Hovered.

4 August 1973 Night - Sonora, Kentucky, USA -   One object was observed by more than one male witness (Meredith).

4 August 1973 23:41 - Stuttgart-Sued, Germany -   Nocturnal lights were reported (Schollich).

5 August 1973 Around 2100 - Bulle, Switzerland -   A flying disc was observed. One disc was observed by four witnesses (Dupasquier).

In early August 1973 21:15 - Vanderbilt, Michigan, USA -   One object was observed by a male witness.

5 August 1973 22:00 - Cape Girardeau, Missouri, USA -   One blue-white light was observed for two minutes.

7 August 1973 02:55 - Thanet, UK -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Four objects were observed by three male witnesses, typical age 25, for 36 seconds.

8 August 1973 Evening - Connellsville, Pennsylvania, USA -   Hovered.

8 August 1973 22:10 - Maresfield, UK -   A hovering object was observed. One object was observed by one witness.

9 August 1973 19:10 - Marananga, South Australia, Australia -   To the west.

11 August 1973 19:00 - Granada, Nicaragua -   An unidentified object was sighted, that had an unusual appearance or performance. One object, three times the size of the moon, was observed by more than two witnesses at a lake for 30 minutes (Gonzales; Gutierrez).

11 August 1973 21:15 - Hazelwood, Missouri, USA -   Two objects were observed for 12 seconds (Daggs).

11 August 1973 21:30 - Knob Noster, Missouri, USA -   Nocturnal lights were observed by several witnesses at an airfield for a few seconds.

11 August 1973 21:30 - Schenectady, New York, USA -   Three lights were observed by four witnesses for 30 minutes (Quellette).

14 August 1973 23:00 - Douglas Island Cedar P, Alaska, USA -   One object was observed by five witnesses for 20 minutes.

15 August 1973 02:15 - Mount Pleasant W, Iowa, USA -   An unusual object was sighted, that had unconventional appearance and performance. One object, the size of a star, was observed by one witness on a highway for over 15 minutes (Haynes, J).

15 August 1973 22:25 - Altrincham, UK -   One object was observed by one witness.

15 August 1973 22:30 - Sale, UK -   One object was observed by four witnesses.

15 August 1973 22:30 - Rhyl, UK -   One object was observed by several witnesses.

16 August 1973 - Spanish Fort, Alabama, USA -   A meteor-like object was observed. One object was observed. Explanation: Meteor.

18 August 1973 03:30 - Spain -   Nocturnal lights were reported.

18 August 1973 21:00 - Hollywood, Florida, USA -   Nocturnal lights were observed by two witnesses.

21 August 1973 21:30 - Trafford, Pennsylvania, USA -   An unidentified object was sighted, that had an unusual appearance or performance. One object was observed for over one minute.

22 August 1973 - Hollywood, Florida, USA -   Nocturnal lights were reported (Burke, F).

22 August 1973 Night - Carbondale, Illinois, USA -   Several objects were observed by two witnesses. Explanation: Flare.

23 August 1973 11:05 - Brea, California , USA -   An unidentified but otherwise conventional object was sighted. One object was observed by two witnesses for over 25 minutes (Hornaday).

23 August 1973 21:10 - Apollo, Pennsylvania, USA -   An unidentified object was sighted, that had an unusual appearance or performance. One object was observed for five minutes.

23 August 1973 21:45 - Bristol, Connecticut, USA -   Unusual objects were sighted, that had unconventional appearance and performance. Three objects were observed by two witnesses (Pease).

24 August 1973 20:30 - Toyama, Japan -   Photo: formation of white round or oval objects seen near west coast of Japan.

25 August 1973 - Palmyra E 10M, Missouri, USA -   Light beam.

25 August 1973 - Sumas, Washington, USA -   Nocturnal lights were observed by a female witness (Baker).

25 August 1973 - Hope N10M, British Columbia, Canada -   Nocturnal lights were observed by a female witness (Nicholson).

In late August 1973 18:18 - Cardiff, UK -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Two objects, the size of a star, were observed. Explanation: Satellite.

In late August 1973 Night - Dawson, Georgia, USA -   Two objects were observed by four witnesses.

25 August 1973 Night - Renton, Washington, USA -   One object was observed by more than five witnesses.

26 August 1973 - Nanaimo Lakes, British Columbia, Canada -   Nocturnal lights were reported.

27 August 1973 After 0300 - Athens, Maryland, USA -   An unusual object was sighted, that had unconventional appearance and aerobatic performance. One object was observed by several witnesses.

27 August 1973 03:30 - Athens, Md, Michigan, USA -   An unusual object was sighted, that had unconventional appearance and performance. One object was observed by several witnesses.

27 August 1973 20:00 - Coffman, Missouri, USA -   4 repeated reports of same UFO.

28 August 1973 02:30 - Athens, Maryland, USA -   An unusual object was sighted, that had unconventional appearance and performance. One object was observed by five witnesses for 150 minutes (Larose).

28 August 1973 03:38 - Albion Nw, Michigan, USA -   An unusual object was sighted, that had unconventional appearance and performance. One object was observed by two witnesses on a highway (Jenkins).

29 August 1973 22:00 - Culloden Moor Inverness, UK -   Procession of objects.

30 August 1973 02:20 - Dawson, Georgia, USA -   22+ reports of same UFO.

30 August 1973 20:45 - Orice Place, Missouri, USA -   Nocturnal lights were observed by several witnesses.

30 August 1973 21:23 - Redcar, UK -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Two objects were observed by one male witness (Ollis).

30 August 1973 21:25 - Scopwick Raf Digby, UK -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Three objects were observed by one witness at an airfield.

30 August 1973 22:00 - Bangkok, Thailand -   Photo, quantitative analysis. Explanation: Aircraft.

In September 1973 - Tucson E, Arizona , USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by more than two witnesses.

In September 1973 - Marsala, Italy -   Photo

31 August 1973 - Cumnor, UK -   Hovered.

In September 1973 - Dexter Nw, Missouri, USA -   Nocturnal lights were observed by a male witness (Marcus).

In September 1973 - Ripley, Tennessee, USA -   Nocturnal lights were reported at a city hall.

In September 1973 - Lake La Prairie, Ontario, Canada -   Nocturnal lights were observed by a male witness (St Pierre).

31 August 1973 02:28 - Macon I-75, Georgia, USA -   Objects changed colors and they moved, flashing blue, yellow and green.

31 August 1973 Pre-dawn - Leary, Georgia, USA -   Objects changed colors and they moved, flashing blue, yellow and green.

31 August 1973 04:30 - Moultrie, Georgia, USA -   Police incident. Explanation: SS.

31 August 1973 05:00 - Valdosta, Georgia, USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed.

31 August 1973 Morning - Waycross, Georgia, USA -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed.

In September 1973 Dusk - Grubisno-Polje, Croatia -   Two maneuvering lights in the sky.

In September 1973 Around 2000 - St Augustine, Florida, USA -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation.

31 August 1973 21:15 - Blackwood, South Australia, Australia -   To the east northeast .

31 August 1973 23:00 - Albany, Georgia, USA -   Police incident.

31 August 1973 Night - Sandersville, Georgia, USA -   Unidentified objects were sighted, but with appearance and behavior that most likely would have a conventional explanation. Several objects were observed by a male witness (Smith, R).

In September 1973 Night - Sevier County, Tennessee, USA -   Unusual objects were sighted, that had unconventional appearance and performance. Two objects were observed by four witnesses for ten minutes (Reagan).

1 September 1973 Pre-dawn - Ballarat, Victoria, Australia -   An unidentified object was sighted, but with appearance and behavior that most likely would have a conventional explanation. One object was observed by more than two witnesses.

1 September 1973 19:00 - Formentera Island, Spain -   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.

1 September 1973 Evening - Lawrenceville, Georgia, USA -   Nocturnal lights were observed by a male witness.

1 September 1973 Evening - Albany, Georgia, USA -   Nocturnal lights were observed by a male witness.