Scientists using NASA’s Kepler telescope have found the first Earth-size planet orbiting its star at just the right distance for water to exist on its surface. The finding, reported in this week’s ...

This artist illustration shows what it might be like to stand on the surface of the planet Kepler-186f, the first-ever Earth-size planet to be found in the habitable zone of its star. It's the brass ...

Two of the earliest Earth-ish exoplanet finds are now more exciting targets in the search for habitable worlds beyond this rock. Eric Mack has been a CNET contributor since 2011. Eric and his family ...

The artist's concept depicts Kepler-186f , the first validated Earth-size planet to orbit a distant star in the habitable zone—a range of distance from a star where liquid water might pool on the ...

Scientists analyzing data from the Kepler space telescope have discovered a first: an Earth-size planet orbiting in the habitable zone of its parent star, researchers announced Thursday. The planet is ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In recent years, NASA's Kepler space telescope and other observatories have discovered more than ...

The search for extraterrestrial life zeroed in a bit today as NASA announced that its unmanned Kepler Space Telescope detected the most Earth-like planet yet found beyond the Solar System. Named ...