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Melodicmarc t1_j9r7hs7 wrote

I don't think that makes sense. Ripples expand from a single point outward, much like an explosion with a burst of energy. The big Bang wasn't necessarily that. My favorite metaphor for the universe expanding is it is like a loaf of raisin bread in the oven. Imagine you are one of the raisins. As the bread rises and expands, every raisin gets further from each other. So rather than the universe expanding outward from a central point (like an explosion) and us riding a ripple along that explosion, what really is happening is everything is expanding away from everything else. Every galaxy is slowing getting further and further from us. And if you were to go to another galaxy, then every galaxy would still be slowing expanding further and further from us. The space between everything is what is really expanding.

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