/u/Pekyk's posts

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If you had a completely empty universe, in which only 2 marbles, placed perfectly still in the beginning, with 1 ly distance in between them, how long would it take for them to collide due to gravity?

5050 upvotes • r/askscience

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If you had a completely empty universe, in which only 2 marbles, placed perfectly still in the beginning, with 1 ly distance in between them, how long would it take for them to collide due to gravity?	5050	askscience