Aliens exist - they just haven't visited Earth, NASA veteran Dr Gentry Lee has claimed.

For All Mankind is an alternate-history drama that operates on a pretty straightforward principle: Suppose the Soviet Union ...

American space agency NASA announced it found a new way to allow the Perseverance rover to determine its position on Mars by itself.

Rocket Lab will launch a scramjet-powered hypersonic vehicle for the U.S. military today (Feb. 25), and you can watch the liftoff live.