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首页土星壁纸 Worlds on the Edge Artist Concept

Worlds on the Edge Artist Concept

土星壁纸

by NASA/Ames/JPL-Caltech

NASA Image Library · 公有领域（Public Domain）

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This artist concept illustrates the two Saturn-sized planets discovered by NASA Kepler mission. The star system is oriented edge-on, as seen by Kepler, such that both planets cross in front, or transit, their star, named Kepler-9.

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