UFO

An unidentified flying object (UFO), or unidentified anomalous phenomenon (UAP),[a] is any perceived airborne, submerged or transmedium phenomenon that cannot be immediately identified or explained.[2] Upon investigation, most UFOs are identified as known objects or atmospheric phenomena, while a small number remain unexplained. While unusual sightings have been reported in the sky throughout history, UFOs became culturally prominent after World War II, escalating during the Space Age. https://en.wikipedia.org/wiki/Unidentified_flying_object

In May 2001, a press conference was held at the National Press Club in Washington, D.C., by an organization called the Disclosure Project, featuring twenty persons including retired Air Force and FAA personnel, intelligence officers and an air traffic controller.[217][218][219][220][221][222][223] They all gave a brief account of their claims that evidence of UFOs was being suppressed and said they would be willing to testify under oath to a Congressional committee.

• Steven Greer (born 1955) is an American ufologist and a retired physician. He founded the Center for the Study of Extraterrestrial Intelligence (CSETI) and the Disclosure Project. https://en.wikipedia.org/wiki/Steven_M._Greer