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The top documents tagged [major galaxies]
Astronomy Stars, Galaxies, and the Universe. What is Astronomy? Astronomy is the study of the moon, stars, and other object in space Astronomy is the
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Heaviest Stellar Black Hole in Nearby Galaxy
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1Astronomy. 2 What is Astronomy? Astronomy is the study of objects in the Universe Astronomy is the study of objects in the Universe Astronomers study
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Virtually all galaxies show a flat rotation curve
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