cervicalgrdle t1_jc96nfr wrote on March 15, 2023 at 4:36 AM

Reply to comment by Aseyhe in Does space expansion occur uniformly in all directions and dimensions? by Tank_AT

I feel like the description that it’s just like particles rushing away from each other doesn’t address the detail that the further the two galaxies in space are.. the greater their “expansion” rate is. That detail wouldn’t apply to particles moving away from each other

Aseyhe t1_jc9rbfi wrote on March 15, 2023 at 8:54 AM

Sure it would. Imagine that a bunch of particles all explode outward from a point at different speeds. The ones moving fastest will end up farthest, and you automatically end up with a picture where recession speed is proportional to distance.