Astronomers Spot Most Earth-like Planet Yet

LOS ANGELES (AP) — Astronomers have discovered what they say is the most Earth-like planet yet detected — a distant, rocky world that's similar in size to our own and exists in the Goldilocks zone where it's not too hot and not too cold for life. The find, announced Thursday, excited planet hunters who have been scouring the Milky Way galaxy for years for potentially habitable places outside our solar system. The planet was detected by NASA's orbiting Kepler telescope, which examines the heavens for subtle changes in brightness that indicate an orbiting planet is crossing in front of a star. Despite the differences, "now we can point to a star and know that there really is a planet very similar to the Earth, at least in size and temperature," Harvard scientist David Charbonneau, who was not part of the team, said in an email. Since its launch in 2009, Kepler has confirmed 961 planets, but only a few dozen are in the habitable zone.

Topics:  los angeles ap     astronomers   earth-like   goldilocks   milky way   nasa   harvard   david charbonneau   kepler   similar   detected   habitable   zone   size   orbiting   star   

 

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