NASA's alien-hunting Europa Clipper spacecraft took seven hours of ultraviolet observations of interstellar comet 3I/ATLAS while both objects zoom toward Jupiter.

For more than a century, popular culture has trained us to picture extraterrestrials as bug-eyed, bipedal “little green men” ...

While alien hunting is often associated with tinfoil hats and flying saucers, the Search for Extraterrestrial Intelligence ...

The latest hunt for alien signals in the TRAPPIST-1 planetary system has test-driven a new strategy that will allow astronomers to perform a more efficient, targeted search for technological ...

Mysterious glowing green orbs the size of basketballs invaded the home of a senior defense official tasked with finding the truth about UFOs, he has claimed in a new memoir. Luis Elizondo has written ...

A press conference in Washington discusses supposed alien activity -- an increasingly common topic in the US capital - Copyright AFP ANDREW CABALLERO-REYNOLDS A press ...