Watch this NASA "Hidden Universe" video showing how the Andromeda Galaxy works. The Andromeda Galaxy is twice as big as our galaxy and has more than one trillion stars. In this video the Spitzer...
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Watch this NASA "Hidden Universe" video showing how the Andromeda Galaxy works. The Andromeda Galaxy is twice as big as our galaxy and has more than one trillion stars. In this video the Spitzer Space Telescope provides some amazing images.
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