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Spitzer Space Telescope View of Galaxy Messier 101

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by NASA/JPL-Caltech/STScI

NASA Image Library · 公有领域（Public Domain）

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The galaxy Messier 101 is a swirling spiral of stars, gas, and dust. Messier 101 is nearly twice as wide as our Milky Way galaxy in this image as seen by NASA Spitzer Space Telescope.

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