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The top documents tagged [arms of stars]
Hidden lives v2
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Galaxies and the Universe Spectra of Science Amole 2013
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Galaxies. A galaxy is made of billions of stars, dust, and gas all held together by gravity. Galaxies are scattered throughout the Universe. They vary
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Galaxies. Objectives Identify three types of galaxies. Describe the contents and characteristics of galaxies. Explain why looking at distant galaxies
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Catalyst
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