To put #7 in more perspective, light travels 186,000 miles per second in space. The closest star to earth is Proxima Centaur and it takes over 4 years for it's light to reach earth.
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To put #7 in more perspective, light travels 186,000 miles per second in space. The closest star to earth is Proxima Centaur and it takes over 4 years for it's light to reach earth.