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I understand that the earth takes 365 days (give or take) to orbit the sun. I also understand that the physics of the universe are in continual flux (expanding universe, cooling suns, etc).
Question: Is it plausible to assume that the earth took a shorter/longer time to orbit the sun a billion (5 billion, 10 billion) years ago? If so, is there any studies or evidence indicating the rate of change?
Question: Is it plausible to assume that the earth took a shorter/longer time to orbit the sun a billion (5 billion, 10 billion) years ago? If so, is there any studies or evidence indicating the rate of change?
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