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Artist's concept of GALEX in orbit around Earth.GALEX readies for launch.At ~2.5 million light-years away, the Andromeda galaxy is our Milky Way's largest galactic neighbor. The galaxy spans 260,000 light-years across. It took 11 different GALEX image segments stitched together to produce this view of the galaxy next door.
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Artist's concept of GALEX in orbit around Earth.NASA
GALEX readies for launch.NASA (PIA04264)
At approximately 2.5 million light-years away, the Andromeda galaxy is our Milky Way's largest galactic neighbor. The entire galaxy spans 260,000 light-years across -- a distance so large, it took 11 different Galaxy Evolution Explorer image segments stitched together to produce this view of the galaxy next door.NASA/JPL–Caltech
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Mission name: GALEX

Galaxy Evolution Explorer

Understanding how the galaxies were formed

Mission news and discoveries
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