Kepler-20
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Kepler-20 is a star about 934 light-years from Earth in the constellation Lyra with a system of at least five, and possibly six, known planets. The apparent magnitude of this star is 12.51, so it cann
Size comparison of Kepler-20e and Kepler-20f (artist's impressions) with Venus and Earth (actual photographs)
Kepler 22b artwork
Artist's rendering ULAS J1120+0641
Vesta in natural color
Kepler-20e
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Kepler-20e is an exoplanet orbiting Kepler-20. The planet is notable as it is the first planet with a smaller radius than Earth found orbiting a Sun-like star. The planet is second-closest to the star
Kepler-20
…Space Telescope team reported the discovery of a five-planet system containing three small gas giants and the first two Earth-sized extrasolar planets, Kepler-20e (the first known extrasolar planet smaller than Earth orbiting a main-sequence star) and Kepler-20f, orbiting a Sun-like star. Although the planets are…
An artist's depiction of Kepler-20e