The researchers who scan the skies for radio signals from extraterrestrials are now rethinking their approach.

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 ...

For over six decades, the Search for Extraterrestrial Intelligence (SETI) has been tirelessly scanning the cosmos for signs ...

On the night of September 18, 1980, a Titan II missile carrying a thermonuclear warhead exploded in rural Arkansas. Here’s what the terrifying incident was like, from those who were there.