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

Alien megastructures built to harvest stellar energy or alter the orbits of stars may be physically feasible, according to a ...

Chinese scientists' claims that their "Sky Eye" telescope could have picked up signals from intelligent aliens have been met ...

Astrophysicist Sara Seager has spent decades expanding how we search for life beyond Earth: not by asking what we would look ...

Searching for alien languages sheds light on how much human languages have in common—with each other and even with animal ...

US congressman Tim Burchett recently claimed that aliens have visited Earth and that they made contact with humans.

He claimed his lifelong research suggests alien technology is so advanced it could annihilate the human race in a microsecond ...

NASA officials have previously spoken of the possibility of extraterrestrial life amid scientific uncertainty while ...

This cinematic documentary explores the profound scientific quest to discover intelligent life beyond our solar system by examining advanced technological signatures and cosmic communication methods.

UFOs have intrigued people for decades, with sightings and investigations dating back to the first widely reported one in ...

If the government confirms nonhuman intelligence, psychological research offers clues about the range of ways humans might ...

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