(FILES) Workers freshen up the paint on the NASA logo at the Kennedy Space Center in Cape Canaveral, Florida, on May 20, 2020. Scientists at NASA's first ever public meeting on "unidentified anomalous phenomena" -- more commonly called UFOs -- called on May 31, 2023, for a more rigorous scientific approach to clarify the origin of hundreds of mysterious sightings. (Photo by JOE RAEDLE / GETTY IMAGES NORTH AMERICA / AFP)