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 ...

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

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 ...

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

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

In March 2026, SETI Institute researchers contributed to a wide range of conversations about our solar system and the search ...

For years, the search for alien life has focused on Earth-like planets orbiting distant stars. But this episode explores a ...

In a recent SETI Live conversation, astronomer and Drake Award winner Dr. Jason Wright addressed that question through the ...