Aliens might be transmitting communications signals to each other across exoplanets, some astronomers think. Since these signals are likely sent as narrowband radio waves, we may now have a way to ...

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

A new study published in the journal Astrophysical has outlined a novel method that could be used to detect advanced alien civilizations remotely. The premise is to look for signs of nuclear fusion on ...

Scientists suggest the first alien signal we detect could be a desperate cry for help from a fading civilization.

Within the lifetimes of today’s teenagers, some of the world’s most respected researchers now say the discovery of alien life ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

Technosignatures are theoretical signs of technologically advanced alien civilizations, but so far, none of those civilizations have phoned home. Researchers from the Search for ExtraTerrestrial ...

The U.S. military is developing portable UFO detection kits to collect better data on reports of sightings as the Pentagon says there is no evidence of alien technology found in any government ...

There's the invasion by a warlike species, there's the highly evolved species trying to communicate with our primitive ...