Last updated on April 16, 2014 at 17:34 EDT
M31 Full Field of View
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M31 Full Field of View

March 17, 2003
A PSPC mosaic of M31, the Andromeda Nebula. Andromeda is the nearest large galaxy to our own Milkyway galaxy and is a spiral galaxy much like ours. The Andromeda Galaxy is about 2.5 million light-years away from the sun.