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Last Post 10/15/2020 11:07 AM by Terry Kucera

gravity

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Libby

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10/15/2020 7:48 AM
How come the moon's gravity affects tides on Earth but not the sun's gravity?

Terry Kucera

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10/15/2020 11:07 AM
Hi, The Sun does actually have tidal affects on the Earth, but they are smaller than the ones from the Moon. Although the Sun's gravitational pull on the Earth is stronger than the Moon's, for tides distance matters and the Moon is much closer. Still, though, the Sun can change the tides are in measurable ways, making them stronger or weaker than they would be otherwise. For more see https://www.scienceandthe...unar-and-solar-tides Terry