NASA's Kepler Peers Into Space, Uncovers Earth-Like Planet
NASA's Kepler Mission is searching for life on other planets, and it recently discovered a promising lead that's the most Earth-like yet.By Ryan Biek | July 23, 2015
Are we alone in the universe? To answer that, NASA's Kepler space program has searched the cosmos for planets like ours. On July 23, they announced they'd discovered "Earth 2.0."
They call it Kepler-452b. It's close to the same size as Earth and revolves around a star that's roughly the same surface temperature as our sun. But this star is older, thus 20 percent brighter than the sun, and Kepler 452-b orbits it every 385 days.
Now, this isn't the program's first discovery of a potentially habitable planet, but it's the most like Earth yet. Its star and our sun release the same amount of energy. And the new planet's distance from its star matches that of the Earth and the sun.