Provided they host thick, hydrogen-dominated atmospheres, moons orbiting free-floating exoplanets could retain much of the ...

Oxygen on exoplanets can be the result of simple chemical processes rather than biological ones.

Drawing on updated stellar data and planetary records, researchers have compiled a catalogue of rocky exoplanets located ...

These three exoplanets are among the least dense ever found, and all attempts to probe their atmospheres have been blocked by ...

Life on Earth is a precious thing, especially given what astronomers know about the visible universe. Although researchers ...

A study from Cornell University discovered that a particular purple “light fingerprint” could be indicative of ...

A small group of distant worlds may hold the clues to life beyond Earth. Astronomers searching for life beyond Earth have ...

Out of the 6,000 known exoplanets, it's these rocky worlds that are most worthy of attention in the search for life beyond ...

A hazy, ultra-light “super-puff” planet, Kepler-51d, is hiding its secrets and challenging how scientists understand planet ...

If we're to find extraterrestrial life in the universe, astronomers have pinpointed the best places to look for it. They have ...

Scientists have identified 45 Earth-like exoplanets that are the strongest known candidates for hosting extraterrestrial life.

A distant Sun-like star began dimming unpredictably, prompting astronomers to investigate what was blocking its light.