Hundreds of people, including several university scientists, witnessed the flying blue-green lights in August 1951. One person even took photos.

August 25, 1951 was a quiet summer night in Lubbock, Texas. That evening, a handful of scientists from Texas Technical College were hanging out in the backyard of geology professor Dr. W.I. Robinson, drinking tea and chatting about micrometeorites. It was quite the brain trust: chemical engineering professor Dr. A. G. Oberg, physics professor Dr. George and Dr. W. L. Ducker, head of the petroleum-engineering department.

Which made the story of what they witnessed that night all the more curious.

“If a group had been hand-picked to observe a UFO, we couldn’t have picked a more technically qualified group of people,” wrote U.S. Air Force Captain Edward J. Ruppelt later in his definitive 1956 casebook, The Report on Unidentified Flying Objects.In the early 1950s Ruppelt served as lead investigator for Project Blue Book, the official Air Force investigations into UFO sightings, after working on its precursor effort, Project Grudge.

History.com