Galactic cosmic rays — high-energy particles from outside the solar system — could theoretically power life on certain frigid worlds. The radiation can trigger chemical reactions underground, whose ...

Is anybody out there? Probably. Most stars have planets; we've discovered more than 6,000 exoplanets thus far, and the most basic statistics point toward the existence of countless potentially ...

Add Yahoo as a preferred source to see more of our stories on Google. UPDATED: There's a massive gravitational wave announcement on the way Too much cosmic radiation can sterilize a planet – but a ...

The traditional astrophysical recipe for life as we know it is quite simple: Get a rocky, gas-shrouded world in a “habitable zone” orbit around a star so that it’s not too hot or too cold. Then just ...

Add Yahoo as a preferred source to see more of our stories on Google. Saturn's moon Enceladus (shown here in a 2006 false-color image from NASA's Cassini spacecraft) is thought to harbor an ocean ...

A collaborative project dubbed “A Sign in Space” is a winner of the 2024 Gizmodo Science Fair for simulating a message to Earth from intelligent aliens. The project involved beaming an encoded message ...

Harvard physicist Avi Loeb says humanity is on the brink of a 'major revolution' as advances in artificial intelligence and the search for alien life accelerate, telling a reporter in Athens this week ...