Avi Loeb, a Harvard astronomer who has made headlines with his theories about alien encounters, will lead a White House ...

One pilot's offhand description in 1947 started a national obsession that never quit.

In June 1947, Kenneth Arnold saw something strange in the sky. What he saw sparked a national UFO craze-but it was far from ...

The Defense Department released a new batch of previously classified files on alleged UFO sightings, including references to green orbs and fireballs.

A look at 80 years of UFO reports and the question of whether they point to coincidence or something more.

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? It was a temperate summer evening on September 19, 1961, when husband-and-wife duo ...