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Photo of the Day

Approaching the International Space Station
The Medusa Nebula
The Star Clusters of NGC 1313
Three CubeSats Released
Probably a Planet for Beta Pic
A Martian Valley
A Fox Fur, a Unicorn, and a Christmas Tree
Lunar Halo over Snowy Trees
A Radar Image of Venus
Mercury's Faults
Iridescent Cloud Edge Over Colorado
The Snows of Churyumov-Gerasimenko