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

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

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

A small group of distant worlds may hold the clues to life beyond Earth. Astronomers searching for life beyond Earth have narrowed down the most promising places to look. Out of more than 6,000 known ...

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

Sure, we want to study how different systems form and why many look different from our own, but we would also like to find ...

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

If we're to find extraterrestrial life in the universe, astronomers have pinpointed the best places to look for it. They 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 study from Cornell University discovered that a particular purple “light fingerprint” could be indicative of ...

Finding Earth-like planets orbiting sun-like stars and identifying signs of life such as oxygen or water is a major goal in ...

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