Carl Sagan

“The immense distances to the stars and the galaxies mean that we see everything ins pace int he past, some as they were before the Earth came to be. Telescopes are time machines.”


Carl Sagan, Pale Blue Dot: A Vision of the Human Future in Space
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Pale Blue Dot: A Vision of the Human Future in Space Pale Blue Dot: A Vision of the Human Future in Space by Carl Sagan
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