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 ...

(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.

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

Missing US scientists’ mystery: Harvard astrophysicist Avi Loeb urges caution regarding a series of unexplained deaths and ...

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

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

Star Trek has seen its fair share of dangerous weaponry, but these are the most powerful weapons in the franchise's expansive ...

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

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

For generations, human beings have wondered: What would alien life from another planet be like? But we rarely ask the ...