aliens

A new thought experiment reveals how greenhouse gases can be used as a technosignature in the hunt for aliens.

The rise of AI might explain why the search for extraterrestrial intelligence (SETI) has yet to detect the signatures of advanced technical civilizations elsewhere in the galaxy.

Elon Musk isn't convinced that aliens have ever visited Earth, according to remarks the SpaceX CEO and founder made during a conference on Tuesday (May 7).

A preview of Alien Day 2024 with the theatrical return of "Alien" and a peek at new "Aliens Expanded" documentary.

With JWST and other telescopes, we now have the tools to tell the difference between an intelligent visitor and an interstellar 'dark comet' like 'Oumuamua. Let's not get fooled.

Scientists are investigating the possible forms that alien languages might take — and whether we might be able to understand them.

Scientists beamed out a deep-space travel ad to potential aliens in the TRAPPIST-1 planetary system, urging them to visit Lexington, Kentucky.

A new study calls for humanity to prepare for an encounter with extraterrestrial intelligence and examines the social consequences of such contact.

Humpback whale "conversations" provide valuable insight on how humans may one day communicate with life beyond Earth.

Last summer, Harvard professor Avi Loeb claimed tiny pellets of iron came from beyond our solar system. But new analyses suggest that they likely originated much closer to home.