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 ...

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

(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.

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

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

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

What would they think of us? It’s a question that can produce some, well, uncomfortable answers if you happen to be an ...

Interest in unidentified aerial phenomena (UAPs) surged in February when Barack Obama stated aliens are "real," though he ...