If the universe is constantly expanding, how could the big crunch happen ?
In: 6
As I understand it, the expansion could be slowing down due to gravitational attraction.
Eventually the expansion would stop and then reverse (start contracting).
In other words, the current expansion is simply inertia from the big bang, once the momentum stops, the contraction begins.
However, some say that the expansion isn’t slowing but is actually increasing. This is attributed to Dark Energy.
I think Dark Energy is a type of coffee (a stupid joke, sorry).
Latest Answers