Astronomy Picture of the Day



Globular Cluster M3 from WIYN

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Z Machine Sets Unexpected Earth Temperature Record

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CG4: A Ruptured Cometary Globule

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McCool Hill on Mars

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Eta and Keyhole in the Carina Nebula

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The Big Dipper Cluster

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Red Spot Jr.

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Our Busy Solar System

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Super-Earths May Circle Other Stars

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The Coma Cluster of Galaxies

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Enceladus Near Saturn

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Inflating the Universe

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