http://www.theatlantic.com/technolo...ists-just-found-earths-closest-cousin/360843/NASA scientists are calling the planet Kepler-186f, and it's unlike anything they've found. The big news: Kepler-186f is the closest relative to the Earth that researchers have discovered.
It's the first Earth-sized planet in the habitable zone of another star—the sweet spot between too-hot Mercury-like planets and too-cold Neptunes— and it is likely to give scientists their first real opportunity to seek life elsewhere in the universe. "It's no longer in the realm of science fiction," said Elisa Quintana, a researcher at the SETI Institute.
It's only ten percent larger than Earth and has a year of one hundred thirty days. Even if life isn't discovered in some form there, it has the potential to be a perfect planet for colonization.