Thousands of people have reported UFOs or alien encounters in Northern California. That number could soon go up.

An international team of astronomers reports the discovery of a new exoplanet orbiting a sunlike star as part of the Next ...

A Soviet astronomer in the 1960s proposed a scale to classify hypothetical alien civilizations. Here’s why the framework is ...

The series has begun production on its second season in London and added Tracey Ullman, Sam Spruell and Jerome Flynn to its ...

Alien: Earth” Season 2 has added three new cast members. Variety has learned that Tracey Ullman, Sam Spruell, and Jerome ...

Tracey Ullman, Sam Spruell, & Jerome Flynn join the cast of FX's Alien: Earth's second season, which just kicked off ...

A planet with one side permanently roasting and the other frozen in endless darkness might still have a chance of supporting life. Researchers found that heat inside a tidally locked exoplanet could ...

With over decades of films and convincing radio plays, aliens have captivated our imaginations and our worst fears. They’ve ...

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

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

A Catholic nun made a startling assertion about UFOs, cautioning that purported alien encounters are in fact a menacing ...