Robert Kirshner
Thursday 05/20/2004
Astronomy professor at Harvard University Robert Kirshner presents his new book, "The Extravagant Universe: Exploding Stars, Dark Energy, and the Accelerating Cosmos."
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Astronomy professor at Harvard University Robert Kirshner presents his new book, "The Extravagant Universe: Exploding Stars, Dark Energy, and the Accelerating Cosmos."