Some of the coldest objects currently listed as stars in the Milky Way may not be stars at all. A new study by astrophysicist ...

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 ...

Last year, an interstellar traveler entered our solar system. Some speculated that it was an alien spacecraft, but it turned ...

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

Eventually, we'll launch a mission dedicated solely to studying an interstellar object. When that day comes, which one should ...

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

NASA plans to launch the Habitable Worlds Observatory in the 2040s, a mission whose goal is “to image Earth-like planets ...

A mysterious object from another star system is racing through our Solar System, and every major space telescope is watching.

Astronomers have sharply revised down the mass of nearby super Earth GJ 3378b, dramatically improving its prospects as a ...

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

From "Independence Day" to "Invasion of the Body Snatchers", movies and TV shows are packed with advice for anyone aspiring ...

Scientists have identified new clues that could help astronomers spot one of the most famous hypothetical alien ...