A former NASA staffer has claimed one of the astronauts on board the Challenger space shuttle saw footage of alien corpses ...

The replacement crew of the SpaceX Dragon capsule, sent on a mission to retrieve two astronauts stranded at the International ...

Giorgio A. Tsoukalos talks about the Alien Astronaut Theory & the new episodes of "Ancient Aliens" on The History Channel.

Talk about an out of this world greeting! On Sunday, March 16, as SpaceX and NASA's Crew-10 astronauts arrived at the International Space Station ahead of Crew-9's return home, some friendly space ...

NASA astronauts Sunita Williams and Barry Wilmore have been stranded aboard the International Space Station for nearly nine months after their return trip on Boeing’s Starliner was deemed unsafe.