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Astrophysicists explain why Earth’s day was always 19.5 hours for more than a billion years

Toronto (Ontario) [Canada], July 6 (ANI): The slow and steady lengthening of the Earth’s day caused by the tidal pull of the moon has been halted for more than a billion years, according to a group of astrophysicists from the University of Toronto (U of T).
They demonstrate that from around two billion years ago until 600 million years ago, a solar-driven atmospheric tide countered the effect of the moon, maintaining Eart