Far beyond the eight familiar planets in our solar system, countless bizarre and extreme worlds await discovery — and some have already been found. Thanks to rapidly advancing telescope technology, ...

Recent observations suggest that scientists have identified potential microbial fingerprints in the atmospheres of other planets, raising intriguing questions about the possibility of alien life ...

Chilly alien oceans could lie hidden beneath miles of ice on planets like Trappist-1f, Proxima Centauri b, and LHS 1140 b. And if we’re lucky, we may be able to watch geysers of water erupt from ...

In world-first observations, the James Webb Space Telescope is watching two distant alien planets "spilling their guts into space" as they rapidly disintegrate — and scientists are elated at what they ...