Comet 3I/ATLAS, the third known interstellar object ever detected passing through our solar system, carries a chemical signature that does not match what astronomers typically see in comets born ...

SETI has spent decades listening for a sharp, well-defined radio signal that could indicate it was sent by distant intelligent life. Now researchers believe that space weather could distort and blur s ...

Emily Blunt is possessed by aliens in the new trailer for Steven Spielberg's next must-watch sci-fi movie. See it here.

Stellar plasma can smear alien radio signals before they escape their star system, making them harder for astronomers to detect.