Viewers of the Artemis II splashdown spotted a little green alien looking out the window of the USS John P. Murtha, waving during the recovery mission.

The crew of the Artemis II landed back on Earth on Friday night - but human beings weren't the only ones greeting them aboard ...

If I were looking at Earth from a distance, I would be pretty disappointed,” theoretical physicist Avi Loeb says. “Most of our investing is dealing with conflicts to prevent other people from killing ...

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