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 ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. A selection of exoplanets that orbit in the habitable zone around their stars — where water can ...

Kepler-186f is a rocky little world in the Goldilocks zone around its star. It's the fifth planet from its parent star, and yet it orbits at a distance comparable with Mercury's orbit around our sun.

NASA scientists say the Kepler space telescope may have discovered the most “Earth-like” planet yet. Circling a star about 500 light-years away, planet Kepler 186-F may be the right temperature to ...

The first Earth-size planet orbiting a star in the “habitable zone” — the range of distance from a star where liquid water might pool on the surface of an orbiting planet.

On Earth, plants are green thanks to our Sun’s light—but Kepler-186f orbits a cooler, redder star. Here’s why alien vegetation might evolve with deep red hues instead of green. ‘Not Constitutional’: ...