The organic molecules could come from life or from ordinary chemistry — only samples returned to Earth can settle it.

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

The Exploration Rover for Navigating Extreme Sloped Terrain (ERNEST) test rover has been put through its paces with great ...

A new survey of hundreds of astrobiologists reveals that, despite NASA's high-profile declarations about Mars and exoplanet K2-18b, most experts do not yet think alien life has probably been found.

NASA wants to send an ambitious fleet of helicopters to soar through Martian skies—but scientists fear the endeavor could ...

A NASA‑linked study argues that alien probes could already be in our Solar System, but our surveys are still too crude to ...

Even at this early stage in our spacefaring age, humanity has already begun sending probes that will eventually reach other ...

NASA’s Perseverance rover has uncovered what may be the strongest evidence yet of ancient life on Mars. Inside a ...

NASA’s Perseverance rover has reached a landmark achievement on the Red Planet, traveling the equivalent of a full marathon ...

Steven Spielberg looks to skies for redemption in this spiritual sequel to Close Encounters of the Third Kind.v ...

Discover six hard sci-fi films where science shapes story and emotion, like Europa Report and The Martian. Brainy, emotional, ...

Science fiction has thrived in literature over the last half a century, thanks to masterpieces like Hyperion and The Hitchhiker's Guide to the Galaxy.