Data from the James Webb Space Telescope on exoplanet K2-18b has revealed the "strongest hints yet of biological activity ...

Aliens, cryptids and unidentified flying objects such as Mothman and the Flatwoods Monster all have a supposed history of ...

There’s no data to suggest that aliens exist. However, if we believed they existed and came to Earth, our planet would offer ...

From flying saucer sightings to an Air Force-funded study at CU Boulder, the city played an unexpected role in America's UFO ...

NASA's Perseverance rover has uncovered one of the most intriguing clues yet in humanity's search for life beyond Earth.

Researchers have looked at how particular microbes from Earth would fare in conditions like those of Mars, the moon, and the ...

Efrem Rigotti actually just wanted to find his car keys. Instead, he came across a mysterious object. Now it's clear: it's from outer space.

New research suggests that alien radio signals may be transformed by plasma from their home stars — and scientists on Earth ...

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

Steven Spielberg's new blockbuster coincides with real-world disclosures about the government's investigation of unidentified ...

Steven Spielberg's claims of alien visits to Earth spark debate among scientists, who stress the lack of credible evidence ...