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 ...

Researchers using the Hubble Space Telescope have discovered water vapor in the atmosphere of planet K2-18b, located about ...

Get the latest federal technology news delivered to your inbox. You might think this column is about UFOs and the Pentagon's ...

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

"All these discoveries from pioneering missions like Voyager and New Horizons teach us how little we know about what lies ...

NASA’s Viking 1 lander set down in the Chryse Planitia region of Mars. Its identical twin, Viking 2, followed on Sept. 3 of ...

The search for life beyond Earth has always been full of surprises. Strange radio signals have sparked excitement. Odd gases on distant worlds have raised questions. Even ordinary objects have been ...

NASA’s James Webb Space Telescope has detected a carbon-rich atmosphere on a tiny world orbiting a dead, rapidly spinning ...

Astronomers at the University of California, Irvine (UCI) have discovered a potentially habitable super-Earth located just 25 light-years away.

A recently discovered "super Earth" located around 25 light-years from our planet is not as massive as previously thought, ...