Australia's space agency said there's a completely rational, albeit cosmic, explanation behind the mysterious orbs that ...

Long before modern space exploration, scientists proposed astonishing ways to contact extraterrestrials—from giant burning ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

At the edge of Antarctica, where the air is clean and the human world thins out, a strange instrument listens to the planet.

For your extraterrestrial viewing needs, Stacker ranked the top 30 alien movies, according to their IMDb user rating.

Having considered more than 1,000 cases, this analyst of unidentified anomalous phenomena has honed a rational process for ...

In July 2025, astronomers spotted something remarkable passing through our Solar System, an object that had not come from ...