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How Earth Moves Through Space


The Sun, Earth, and the entire solar system also are in motion, orbiting the center of the Milky Way at a blazing 140 miles a second. 



Even at this great speed, though, our planetary neighborhood still takes about 200 million years to make one complete orbit -- a testament to the vast size of our home galaxy.


1 comment

  1. With all of those dynamics going on, we still think climate change is entirely man made?

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