Besides the original cult hit film, the sci-fi franchise Alien Nation also encompasses a TV series and several TV movies ...

What if the government offered you a one‑way ticket to another planet? This video explores the astonishing story of a secret human‑alien exchange mission that sent astronauts 40 light years from Earth ...

NASA has confirmed that 31/ATLAS is a comet and not an alien spacecraft, as some had believed. But it did lead one scientist to map out what could happen if we one day encounter aliens ...