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The record of the rocks contains very little, other than bacteria and one-celled plants until, about a billion years ago, after some three billion years of invisible progress, a major breakthrough occurred. The first many-celled creatures appeared on earth.

— Robert Jastrow

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More quotes by Robert Jastrow

The eye appears to have been designed; no designer of telescopes could have done better.

Few astronomers could have anticipated that this event—the sudden birth of the Universe—would become a proven scientific fact, but observations of the heavens through telescopes have forced them to that conclusion.

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Quote text and notes from Wikiquote: Robert Jastrow (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.