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Space Science
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Space Science

The Andromeda Galaxy, also known as M31 since it is the 31st object on Messier's list of diffuse sky objects, is the nearest large galaxy to our own Milky Way galaxy. Our galaxy is thought to look much like Andromeda, but it is about four times as massive as the Milky Way. Together these two galaxies dominate the Local Group of galaxies. The diffused light from Andromeda is caused by hundreds of billions of stars that compose it. The several distinct stars that surround Andromeda's image are actually stars in our galaxy that are well in front of the background object. Andromeda is so distant that it takes approximately two millions years for light to reach us from there.

Date
1978-12-01
Collection
MSFC
Archive
NASA Image and Video Library
Type
photograph

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Reason: a NASA work: not copyrighted in the United States.

Read from: NASA media usage guidelines: NASA material is not copyrighted in the US unless noted; no third-party credit or mark found.

Credit line

"Space Science" (1978-12-01). NASA/MSFC. Public domain. https://images.nasa.gov/details/7993119

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