User blog comment:Arbington/The Next Cycle/@comment-2094653-20120803225240/@comment-5287758-20120806151628

Hey this is gravity we are talking about, not the electromagnetic force. Gravity in dark space is too low too be of any real significance. The Reapers would need to be in orbit around the center of the Milky Way, otherwise they would drift apart and sign their own death warrant. 'Cos the galaxies are also moving.