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

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

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

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 ...