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首页星系壁纸 Galaxies Gather at Great Distances

Galaxies Gather at Great Distances

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by NASA/JPL-Caltech/NOAO

NASA Image Library · 公有领域（Public Domain）

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Astronomers have discovered nearly 300 galaxy clusters and groups, including almost 100 located 8 to 10 billion light-years away, using the space-based Spitzer Space Telescope and the ground-based Mayall 4-meter telescope.

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