ピアーズアトキンソンのインスタグラム(piersatkinson) - 5月11日 06時34分

#Repost @NASA with @repostapp???Planets! Our Kepler mission has verified 1,284 new planets – the single largest finding of planets to date that more than doubles the number of confirmed planets from Kepler. In the newly-validated batch of planets, nearly 550 could be rocky planets like Earth, based on their size. Nine of these orbit in their sun's habitable zone, which is the distance from a star where orbiting planets can have surface temperatures that allow liquid water to pool. With the addition of these nine, 21 exoplanets now are known to be members of this exclusive group.

Kepler captures the discrete signals of distant planets – decreases in brightness that occur when planets pass in front of, or transit, their stars – much like the May 9 Mercury transit of our sun. Since the discovery of the first planets outside our solar system more than two decades ago, researchers have resorted to a laborious, one-by-one process of verifying suspected planets.

This artist's concept depicts select planetary discoveries made to date by NASA's Kepler space telescope.

Credits: NASA/W. Stenzel
#nasa #space #science #astronomy #exoplanet #kepler #planet #planets

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