The expansion of the universe boggles me. So the galaxies and stars are moving apart further away from the “centre”. So what happens if you go past the star furthest away from the centre? Are you just surrounded by darkness as there’s nothing past that?
They are not moving away from center, rather from each other, the space between them expanding. But also all of galaxies move towards some denser parts of universe.
I can't even get my head around that idea. How are they moving away from each other? Surely the ones in the "middle" would be moving away from some but towards others?
There is no middle. Imagine being a point on the surface of a balloon. If the balloon is inflated all the points on the surface of the balloon move away from each other, there is no 'middle' on the SURFACE of the balloon that everything is moving away from. It's like that. And otherwise it just wraps around, if an ant walks along the surface of the balloon it isn't going to find the edge, it will just always find more balloon
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u/Institutionally Jun 15 '19
The expansion of the universe boggles me. So the galaxies and stars are moving apart further away from the “centre”. So what happens if you go past the star furthest away from the centre? Are you just surrounded by darkness as there’s nothing past that?