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Comet C/2011 L4 (PANSTARRS)

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Comet C/2012 S1 (ISON)

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More lovely Spitzer images

Not only do these galactic pinups help astronomers learn how the universe works, but they’re also pretty easy on the eyes.
By Bill Andrews
Published: May 23, 2011
13_Sunflower-Galaxy
The Sunflower Galaxy (M63), with dust glowing red and stars shining blue-green. NASA/JPL-Caltech/SINGS Team
Not only do these galactic pinups help astronomers learn how the universe works, but they’re also pretty easy on the eyes.
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