This documentary explores the profound scientific search for intelligent life beyond Earth and the potential existence of advanced alien civilizations. It examines various methods of cosmic ...

A nihilistic alien civilization sounds like one that would simply lose hope, abandon progress, and fade away. But this ...

Some sci-fi books are so great that they could sustain multiple seasons of a prestige TV shows, even though they are a ...

(cokada/iStock/Getty Images) Alien megastructures built to harvest stellar energy or alter the orbits of stars may be ...

In these science fiction books, extraterrestrial beings are sympathetic, horrifying and everything in between.

According to Metropolitan Hilarion, aliens live in different realms and occasionally appear to humans as angels ...

Fallout brought the wasteland back in a big way, but these other series prove the apocalypse has plenty of stories left to ...

In the sci-fi book and now movie Project Hail Mary, astronaut Ryland Grace, played by Ryan Gosling, encounters three ...

Star Trek is packed with all sorts of alien, both on the Enterprise and throughout the final frontier, and these are the ...

Alien experts claim powerful extraterrestrial life exists in the universe, which is beyond the control of any government — ...

Debate over alien life resurfaces as Avi Loeb questions humanity, Obama comments on UFOs, and NASA’s Artemis II mission fuels ...