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

Planets that once lived only in pulp novels and movie concept art are now turning up in real data. Astronomers are not just ...

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 ...

WASHINGTON (Reuters) -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, ...