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 ...

Watch as author Andy Weir and co-directors Phil Lord & Chris Miller react to early footage from the newly announced Project ...

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 ...

What would alien life from another planet be like? But we rarely ask the opposite: What would they think of us? It’s a ...

What would alien life from another planet be like? But we rarely ask the opposite: What would they think of us?

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 ...