Reporter’s Notebook: If Earth’s entire history was squeezed into a single day

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Reporter’s Pocket book: If Earth’s complete historical past used to be squeezed right into a unmarried day – CBS Information

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If Earth’s entire 4.5 billion-year history was squeezed into a single, 24-hour day, when would modern humans arrive? “CBS Evening News” co-anchor John Dickerson ponders the meaning of Earth Day.

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