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.

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

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 ...

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

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

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

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

There are hundreds of millions of planets around other stars in our Milky Way galaxy that may be habitable, argues a new research paper. These exoplanets (planets orbiting a star other than our sun) ...

Add Yahoo as a preferred source to see more of our stories on Google. In our solar system, Earth is one of but eight planets – nine, if you really want to count Pluto – and the only one remotely ...

The film which opens in theaters Thursday is grounded in a real nearby star systems an exoplanet science, with a dose of fictional biology.