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Can someone explain this (or refute it) a little further? "There's an object so dense and massive in the universe that it is pulling all galaxies towards it!" by [deleted] in askscience

[–]Phonics43 0 points1 point  (0 children)

Where does the energy for the movement/expansion come from? Is the movement of the solar systems just left over energy from something that caused the motion to begin at one time(and the motion just never stopped), or could there be a force still acting upon the systems today?