Documents might help scientists shed light on unexplained phenomena and government secrets, experts said.

Trump accused Obama of revealing classified information about aliens, calling it a "big mistake" during Air Force One ...

President Donald Trump said on Thursday he would direct federal agencies to begin releasing government files related to ...

Trump’s directive signals a new chapter in Washington’s long-running dance with the unknown.

After setting social media abuzz by saying aliens were real, former President Barack Obama said he didn't see evidence that ...

LOS ANGELES -- San Diego Comic-Con becomes ground zero for an immersive encounter with a crashed UFO that houses never-before-seen alien specimens. First unveiled at SXSW, the mysterious UFO wreckage ...