1951·Lubbock, Texas
United States.Lubbock Lights · formations of lights seen and photographed
In August and September 1951, Texas Tech College professors saw formations of 18 to 30 blue-green lights cross the sky over Lubbock in seconds, on several nights. On August 30, student Carl Hart Jr. took five photographs of a "V" formation that LIFE magazine published. Edward Ruppelt, head of the Air Force's Project Blue Book, first thought of birds and later wrote that he had been wrong; by his account, every sighting except the radar detection officially remained an "unknown." After Hynek spoke in 1959 with one of the professors, an Air Force report gave the probable cause as migrating birds reflecting the street lights.
Tier A · AcceptableWhat do they mean? →
Institutional evidence: several identified independent witnesses, or contemporary official documentation, without an instrumental record to corroborate them.
What it was
79%natural or human cause
Most likely explanation: bird
See the split across the six explanations
Natural or human cause
No known cause
Read the full reasoning
Allen Hynek he had studied the case and "determined that they were definitely birds", and the report adds that since plovers do not usually fly in formations of more than six or seven, "ducks become the more probable". Against it: Ruppelt wrote in 1956 that he first thought of birds "but I was wrong", and that officially all the sightings except the radar return "are unknowns"; Texas Tech biology head J. C. Cross and professor Grayson Mead rejected birds.What happened
On the night of August 25, 1951, four Texas Technological College professors (a geologist, a chemist, a physicist and a petroleum engineer) were gathered around 9:20 p.m. in the yard of a house in Lubbock, Texas, chatting, when they saw a formation of between 20 and 30 blue-green lights arranged in a semicircle pass overhead in a few seconds. Startled, the group agreed to meet again to try to record the phenomenon if it recurred: they noted times, counted the lights and tried to estimate altitude and speed with the discipline of their profession. According to Ruppelt, they saw it on fourteen occasions: they measured that the lights crossed 90 degrees of sky in three seconds, about 30 degrees per second, appeared suddenly 45 degrees above the northern horizon and went out 45 degrees above the southern one, always north to south. The phenomenon was also observed by numerous city residents.
On August 30, 1951 according to the Blue Book file (August 31 according to Ruppelt), Carl Hart Jr., a Texas Tech freshman, was lying in bed looking out his bedroom window when he saw a group of lights in a "V" formation, of the same dull bluish-green color the professors had described, as he told Ruppelt; he grabbed his camera, went out to the yard, and working quickly as the formation crossed again, got five exposures. The photographs (luminous points arranged in one or two arcs against a black sky, with no star visible, which according to Ruppelt proves the lights were much brighter than the stars or affected the film more; the Blue Book file keeps four of them) were published months later in the mass-circulation LIFE magazine. The head of Project Blue Book, Captain Edward J. Ruppelt, traveled to Lubbock, interviewed the professors, Hart and other witnesses, and examined the photos without finding evidence of a hoax; the case marked him enough that he devoted a chapter to Lubbock in his memoir on the investigation.
Ruppelt's only solid lead was birds: a couple from Lamesa had identified identical lights as plovers by their call, a farmer saw birds with lit-up bellies over a drive-in theater, and the city had installed mercury-vapor street lighting. But the Lubbock game warden told him plovers usually travel in no more than pairs, or three at the most; moreover, the professors did not see the lights when they went out looking away from home, while their wives saw them from there, and people living miles from the mercury-vapor-lit boulevards also said they had seen them. In his 1956 book Ruppelt wrote that he had thought of birds but was wrong: "they weren't birds, they weren't refracted light, but they weren't spaceships"; they were, he wrote, a commonplace natural phenomenon that an anonymous scientist had identified. He added that officially all the sightings except the radar detection were "unknowns".
The witnesses rejected the idea forcefully: they insisted the lights were too bright, too synchronized and too uniform in their movement to be birds; professor Grayson Mead said they were too large for any bird, and Texas Tech biology head J. C. Cross also ruled out birds. Donald Menzel, of Harvard, attributed them to refracted city lights. In 1959, one of the professors told J. Allen Hynek he had studied the case thoroughly and that they were birds, and a later Air Force report concluded that the probable cause was migrating birds, more probably ducks than plovers, reflecting the street lights. The bird hypothesis was never unanimously accepted, and Hart's five photos were never conclusively explained: the Lubbock Avalanche-Journal photographer could not reproduce them by photographing birds over the street lamps.
Why it matters
In August and September 1951, the Lubbock Lights brought together scientifically trained witnesses, observations repeated over several weeks and five photographs that became part of the phenomenon's imagery. That the first observers were four university professors, who counted the lights and measured their speed (presumably careful observers, with a professional incentive not to be publicly wrong), gave the case unusual credibility for the time and made it national news.
The case remained an ambivalent classic. The Air Force adopted the explanation of birds reflecting the street lights, and one of the professors, after studying what he himself had seen, reached the same conclusion; but the head of Blue Book himself had rejected it in writing, and the Lubbock Avalanche-Journal photographer could not reproduce Hart's photos by photographing birds over the street lamps.
Documents and sources
Primary documents
Original Project Blue Book case file for the Lubbock Lights (August 1951) — the USAF official investigation.
USAF Project Blue Book (vía Wikimedia Commons) · Public domain · US Government work · open original
Documented evidence
- Repeated observation (fourteen occasions according to Ruppelt, from August 25, 1951) by four Texas Technological College professors of formations of blue-green lights crossing the sky at about 30 degrees per second
- Five photographs by Carl Hart Jr. (August 30, 1951) of a "V" formation, published in LIFE magazine
- Observations by numerous city residents on several nights
- Project Blue Book investigation found no evidence of a hoax in the photos
- Air Force conclusion after Hynek's interview (1959) with one of the professors: migrating birds, more probably ducks than plovers, reflecting the street lights
- Ruppelt (1956): he thought of birds "but I was wrong"; officially all the sightings except the radar detection are "unknowns"
Sources
- Wikipedia — Lubbock Lights — Chronology, Carl Hart's photos and the birds explanation.
- UFO Casebook — The Lubbock Lights, 1951 — Synthesis of the case and testimony.
- E. J. Ruppelt, The Report on Unidentified Flying Objects (1956), ch. 8 'The Lubbock Lights, Unabridged' (Project Gutenberg) — Account by the head of Blue Book: the plover lead, the game warden's objections and his retraction ("they weren't birds").
- Project Blue Book — file 1951-08, Lubbock, Texas (NARA, archive.org mirror) — Four of Hart's photographs with the file cover (Aug 30, 1951); the item does not include the conclusion card.
- Lubbock Lights, «Part of the reason we're named Lubbock Lights honors '51 UFO mystery» — Quotes the post-1959 Air Force report concluding birds (ducks more probable than plovers).
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