The grandeur of the cosmos has intrigued and challenged us since time immemorial and, on a clear night, looms above us stirring wonder in little boys and girls and discomfort in men who have lived a little.

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At the same time, in abrupt digressions, the cosmos churned, oceans teemed, nebulae exploded.

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Physicist (and revolutionary) Max Tegmark likes to say that his grandmother grew up in a different universe, because since the time when she was a child, humans have discovered that the cosmos extends much farther, and obeys vastly different rules, than previously believed.

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