A set of protocols telling scientists what to do – and what not to do – if they ever detect evidence of intelligent life ...

In the 21st century, the theories regarding the existence of aliens refuse to dial down. Now, the recently resurfaced NASA photo of Martian planet has gone viral on various social media ...

When you're looking for signs of extraterrestrial intelligence, it helps to know what you're looking for and to go about it in the most efficient way. But work so far has generally not done so, writes ...

Scientists are raising concerns that we may be overlooking evidence of extraterrestrial life even when it is present. Hidden ...

SETI scientists searched the interstellar object 3I/ATLAS for radio signals that could indicate extraterrestrial technology ...

Do not shout ‘alien!’” Amid surge of public interest in UFOs or UAP, one group updated its rules for how news of extraterrestrials should be revealed.

One of the most challenging aspects of astrobiology and the Search for Extraterrestrial Intelligence (SETI) is anticipating what life and extraterrestrial civilizations will look like. Invariably, we ...

An unusual sighting in a NASA image has reignited speculation that something extraterrestrial once existed on Mars.

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

The Trump administration released declassified UAP files featuring Apollo 12 and Apollo 17 photos and transcripts as part of the president's transparency initiative.

Jupiter's moon Europa may have the ingredients necessary for hosting life: liquid water, an energy source and organic compounds. NASA / JPL-CALTECH / SETI INSTITUTE Estimating the chance of getting a ...