Christian UFO researchers argue that many alleged alien abductions are spiritual simulations aimed at undermining Christian ...

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

Project Hail Mary, Solaris, and The Hitchhiker's Guide to the Galaxy are all among the very best sci-fi books set in space.

With new technologies come new opportunities. And that is especially true in astronomy—with every new advanced telescope, we ...

You are driving alone through a quiet countryside road at dusk when something strange appears in the sky. A sudden white ...

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 ...

This new group, which is led by Harvard professor Avi Loeb, aims to advise the Trump administration and the U.S. intelligence ...