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

Project Hail Mary author Andy Weir told Polygon that there was a lot of debate about whether the trailer for the adaptation of his 2021 should reveal that the film prominently features an alien ...

In 1965, twelve astronauts vanished into deep space on a mission Earth never acknowledged—sent to live among aliens on a planet called Serpo. What they found was a world of impossible tech, but not ...