Sheldon
Veteran Member
Our universe may have an edge. Just because we cant see any edge of the universe doesn't mean there isn't one.
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"said Robert McNees, an associate professor of physics at Loyola University Chicago. The cosmological principle states that the distribution of matter in any part of the universe looks roughly the same as in any other part, regardless what direction you look in; in scientists' terms, the universe is isotropic.
The cosmological principle is, in part, a consequence of the idea that the laws of physics are the same everywhere. "There's lots of local variation — stars, galaxies, clusters, etc. — but averaged over big chunks of space, no place is really that different than anywhere else," McNees told Live Science in an email
The implication though, is that there is no "edge"; there is no place to go where the universe just ends and one could look in some direction and see what's beyond it."