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

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 ...

For the past two years, this question has been the subject of intense debate among alien-hunting scientists, with the James Webb Space Telescope (JWST) at its center. Captured in the powerful ...

WASHINGTON, July 7 (Reuters) - Scientists are tracking a large gas planet experiencing quite a quandary as it orbits extremely close to a young star - a predicament never previously observed. This ...

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, ...

NASA’s Perseverance rover stumbled upon an unusual find during its latest sweep of Mars, as the space agency shared a photo of a curious rock found on the red planet’s surface which looks exactly like ...

Astronomers discovered the TRAPPIST-1 system, a family of tightly packed planets swarming a red dwarf star, about eight years ago. Credit: Mark Garlick / Science Photo Library / Getty Images ...

Lisa Kaltenegger, director of the Carl Sagan Institute at Cornell University, hunts for aliens in space by studying Earth across time. By Becky Ferreira Have dinosaurs evolved on other worlds? Could ...