Why do galaxies collide?



  1. 0 Votes

    Because of their trajectories. The commonly accepted theory of the Big Bang sent literally everything everywhere. Though some galaxies are composed completely differently then others, out of different materials, with different densities, shapes, and sizes. These inconsistencies coupled with the numerous other factors (forces – like gravity and dark energy) out there cause galaxies to move at different speeds and in slightly different directions culminating in inevitable collisions.

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