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computer_wallpaper 하늘 kepler earth phenomenon earthlikeplanet 행성 planet astronomical_object atmosphere 지구 space sky atmosphere_of_earth universe outer_space hd 우주
An artist's conception of Kepler-22b, a planet known to be in the habitable zone of a sun-like star. Kepler-22b is the first extra-solar planet, or exoplanet, that the Kepler Space Telescope found in the habitable zone of its star. It is believed to be a promising spot to search for life.