. . . . . Prospecting for . Life in the Universe . . . Universe: Hundreds of Billions of Galaxies 13.5 Billion Years Old . . | slideum.com

. . . . . Prospecting for . Life in the Universe . . . Universe: Hundreds of Billions of Galaxies 13.5 Billion Years Old . .

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Transcript . . . . . Prospecting for . Life in the Universe . . . Universe: Hundreds of Billions of Galaxies 13.5 Billion Years Old . .