Astronomy Picture of the Day

Asteroid 2005 YU55 Passes the Earth
1 Comment
RCW 86: Historical Supernova Remnant
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In the Arms of M83
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Sunspot Castle
3 Comments
The Butterfly Nebula from Hubble
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Waterfall, Moonbow, and Aurora from Iceland
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Orange Sun Scintillating
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NGC 7822 in Cepheus
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Pleiades to Hyades
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A Colorful Side of the Moon
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In Wolf's Cave
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