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Before, During, After the Bang: Part 4

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Before, During, After the Bang: Part 3

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Before, During, After the Bang: Part 2

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Before, During, After the Bang: Part 1

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The edge of the known universe watches everything inside the universe

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Dava Sobel - The Glass Universe: How the Ladies of the Harvard Observatory Took the Measure of the Stars

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Quanta articles for future discussion

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