If the universe is only 13.8 billion years old, and nothing can travel faster than the speed of light (1 lightyear per year), how can the observable universe possibly be nearly 100 billion lightyears across? How do we reconcile the sheer size of the universe with the understanding that it all emerged from an infinitely dense point not so long ago?
In: Physics
because it is constantly expanding outward. and this has been happening in every direction from the origination of the big bang.
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