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galaxies

100,000 Galaxies, and No Obvious Signs of Life

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How Do Black Holes Evaporate?

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What is the Closest Galaxy to the Milky Way?

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Could the Milky Way Become a Quasar?

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How do Gas and Stars Build a Galaxy?

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What is Gravitational Lensing?

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Why Is Andromeda Coming Towards Us?

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