But the real truth is that alien life on other planets could be even stranger than floating balloons or amorphous organisms ...

Jupiter’s moon Europa has long looked like a frozen cue ball, its bright shell of ice hiding a global ocean that many astrobiologists see as one of the most promising places for life beyond Earth. New ...

Exoplanet TOI-561 b is the closest of four worlds orbiting a 10-billion-year-old G-type star roughly 280 light-years from Earth. - NASA / ESA / CSA / Ralf Crawford illustration NASA’s James Webb Space ...

An ocean world that’s teeming with microbes — and who knows what other kinds of life — is currently the best explanation for some chemical signatures that the James Webb Space Telescope has spotted in ...

The Search for Extraterrestrial Intelligence (SETI) focuses on finding technosignatures—potential signs of alien technology. If we look carefully, we might have a chance at detecting their ...

Scientists say aliens are not hiding in Area 51. Experts believe life may exist on distant planets with water and the right temperature. Some moons in our Solar System, like Enceladus and Titan, may ...

NASA’s James Webb Space Telescope has found the strongest evidence yet that a small, rocky planet outside our solar system has air, even though it orbits precariously close to its star. The exoplanet, ...