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首页月球壁纸 Footprint of Ontario Lacus

Footprint of Ontario Lacus

月球壁纸

by NASA/JPL-Caltech/ASI

NASA Image Library · 公有领域（Public Domain）

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This image of Ontario Lacus, the largest lake on the southern hemisphere of Saturn moon Titan, was obtained by NASA Cassini spacecraft. The lake surface appears dark because it is smooth.

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