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M31 Andromeda Galaxy LRGB To learn more about galaxies, check out #Astronomy Is Awesome - http://astronomyisawesome.com/galaxies/whats-the-closest-galaxy-to-us/

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Rachel’s Random Facts, Episode 2

Andromeda Galaxy To learn more about galaxies, check out Astronomy Is Awesome - http://astronomyisawesome.com/galaxies/whats-the-closest-galaxy-to-us/

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The 2006 observations by the Spitzer Space Telescope revealed that Andromeda contains one trillion stars , at least twice the number of stars in the Milky Way , which is estimated to be , 200 - 400 , billion

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10 Years of Mesmerizing Photos From NASA’s Spitzer Space Telescope

Trapezium Cluster

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