As the peerless "Aliens" turns 40, here are 26 reasons it's still the greatest sci-fi action movie of all time.

From Project Hail Mary to Independence Day, Alien to Arrival, these alien movies are much better than Disclosure Day.

From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.

Avi Loeb, a Harvard astronomer who has made headlines with his theories about alien encounters, will lead a White House ...

Efforts to manage invasive alien plant species in forests could be held back by a continued reliance on chemical methods, ...

IDW Publishing is highlighting the best part of Star Trek with its reprints of classic Trek comics that explore the franchise ...

Launching in the 2040s, the HWO telescope will search for Earth-like planets and feature swap-out instruments maintained by ...

Thousands of people have reported UFOs or alien encounters in Northern California. That number could soon go up.

In an ambitious show at the Kulturstiftung Basel H. Geiger in Switzerland, Chloe Wise has a 34-minute film that addresses ...