When astronomers announced Kepler-452b, they were not just adding another distant world to a growing catalog. They were ...

Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.

In a potential landmark discovery, scientists using the James Webb Space Telescope have obtained what they call the strongest signs yet of possible life beyond our solar system, detecting in an alien ...

Add Yahoo as a preferred source to see more of our stories on Google. An illustrated moon-forming disk surrounds an alien planet. (NASA, ESA, CSA, STScI, Gabriele Cugno/University of Zürich, NCCR ...

For the first time, scientists have directly detected molecules in a Frisbee of gas and dust swirling around an alien gas-giant planet. “I didn’t think this was possible,” says astronomer Sierra Grant ...