While the 1947 Roswell Incident ignited a global UFO craze, few know of the top-secret military project that started it all.

The government reveals big secrets when they unveil their new UFO program. See more in this clip from Season 21, Episode 5, "The Top Ten Secret Projects." ...

The Pentagon released 41 new UFO documents, images and videos, the fifth batch of records made public this year.

"There's a minimum of four [types of alien] that we know of. I've seen the evidence, I've seen the records." ...

What if the truth really is stranger than fiction? Few subjects have sparked as much curiosity, debate, and speculation as ...

Add Yahoo as a preferred source to see more of our stories on Google. NBC News' Gadi Schwartz spoke with investigative journalist Leslie Kean and national security experts Luis Elizondo and ...

David Grusch — a former U.S. Air Force officer who testified before Congress in 2023 that the federal government was running secret UFO programs and had recovered non-human "biologics" and materials ...

When the Trump administration registered the domains Aliens.gov and Alien.gov in March, UFO conspiracy theorists wondered whether they might finally get answers they’d long awaited. But coming on the ...

Investigative journalist Ross Coulthart examines claims of a secret 1954 UFO retrieval programme authorised by the White ...