seti.org
UAPs
Belief in extraterrestrial life remains widespread, with some people thinking visitors are present now or have been, and the UFO hypothesis gained prominence after World War II through Kenneth Arnold’s 1947 sighting near Mt. Rainier and the Roswell incident, while ongoing public perceptions that governments withhold evidence persist, but most scientists remain skeptical because interstellar travel would require vast time, energy, or unknown physics, and the evidence cited—radar, radio, and television signals—primarily rests on witness testimony treated as unreliable without independent verification, the 2017 Navy infrared videos stirring speculation that alien hardware exists but plausibly explained by terrestrial causes such as jet exhaust, and the idea of imminent disclosure continuing to rely on an argument from ignorance and clashing with public skepticism, leaving us with accounts and videos that are intriguing yet not definitive proof of extraterrestrial visitation.
