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Ratings by cpressey of Astronomy works
Is the Moon moving away from the Earth? When was this discovered? (Intermediate) - Curious About Astronomy? Ask an Astronomer
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APOD: 2013 February 20 - Saturn's Hexagon and Rings
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How has knowledge of fusion of the Sun changed astronomy?
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Do all galaxies have a blackhole in the center
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What keeps galaxies together?
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