Of all the extrasolar planetary systems detected by astronomers in recent years, the star 47 Ursae Majoris and its known companions, two Jupiter-sized planets, is the one that most closely resembles ...

At the beginning of the exoplanet age, the goals were fairly simple. The first was to find as many of them as possible to ...

Earth is the only life-supporting planet in our Solar System. Until now. Today, we’re bringing Kepler 22-b into our planetary ...

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.

WASHINGTON, March 13 (Reuters) - Astronomers have identified a quartet of small rocky planets orbiting Barnard's star - one of our closest stellar neighbors - though they concluded that all of them ...

"TRAPPIST-1e has long been considered one of the best habitable zone planets to search for an atmosphere." When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't been for lack of trying. According to a new paper by Thomas Winterhalder of ...

(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 ...