Add Yahoo as a preferred source to see more of our stories on Google. Some exoplanets, like the one shown in this illustration, may have atmospheres that could make them potentially suitable for life.

To support alien life, a planet doesn’t have to be exactly like Earth, but it does need a few key ingredients. First, it ...

— -- Astronomers on Monday reported the discovery of an Earth-like planet outside the solar system whose size and distance from its own star put it in the "habitable" zone and make for a surface ...

Astronomers have identified Proxima Centauri b, a rocky planet just over four light-years away, as the closest potentially ...

The planets have been nicknamed Earth's seven sisters. — -- An international team of astronomers has discovered seven potentially habitable exoplanets — or planets outside our solar system — that ...

Learn about HD 137010 b, a cold Earth‑sized planet candidate that sits near the outer edge of its star’s habitable zone.

It's remarkably similar to Earth.

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Morgan Underwood, Rice University (THE CONVERSATION) When astronomers search for ...