From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.

MK-Ultra ran from 1953 to 1973 amid fears the Soviet Union and China were brainwashing prisoners during the Cold War.

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

From flying saucer sightings to an Air Force-funded study at CU Boulder, the city played an unexpected role in America's UFO ...

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters ...

FBI Director Kash Patel delivered a stark warning to healthcare fraud suspects as federal authorities unveiled a list of ...

Some mind-altering substances can leave lasting marks on entire cultures that ripple far beyond a single trip.

As Steven Spielberg releases a new film on extraterrestrials, here's a brief history of modern alien conspiracies and why scientists are now taking UFO reports seriously. Amid all the unanswered ...

After the famed Betty and Barney Hill encounter in 1961, alleged alien abductions were everywhere—and most of the tales followed the same patterns.