His job was to uncover secrets from the unknown. But his curiosity opened doors that the government preferred to keep closed.

Canadian adult-film model claims border patrol quizzed him about his sexuality before banning him from U.S. over his past - ...

The science fiction blockbuster wowed audiences with its depiction of space travel and more. Here's what NASA staff and other ...

If I were looking at Earth from a distance, I would be pretty disappointed,” theoretical physicist Avi Loeb says. “Most of ...

UFOs, or the notion of them, have been around a long time. Here’s a look at how the various iterations of the subject — from ...