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When Earth was hit by a large object the size of Earth did it move faster or slower?
Question Date: 2019-01-07
Answer 1:

I assume you are referring to the collision which is believed to have formed the moon. Researchers have calculated that it caused Earth to spin faster, so that days were shorter, but it eventually slowed down again. I have not been able to find any information about how it affected the speed of Earth's orbit, which determines the length of a year.

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