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Because you are thinking small..... leave the planet and look back at it... there is no "up" or "down" once you out in space. We attach that relative perspective because we need order to understand things. We could just have easily created maps and references to our planet that had the South Pole on 'top' and the North Pole on 'bottom'. A circle (or sphere) has no start/stop point, and no top or bottom. Anywhere we stand on the planet, its gravity pulls us directly toward the center, so think of our relative "up and down" from that point of reference. "down is a straight line directly toward the center of the planet and "up" is a straight line directly away from it, no matter where you stand. Hope this helps. :)

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15y ago

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