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<p>[QUOTE=&quot;AncientJoe, post: 2514686, member: 44357&quot;]Just saw this thread now. For what it&#039;s worth, that isn&#039;t a common belief about the universe. It would require a &quot;closed&quot; spacetime, due to hyperbolic curvature. If it were the case, we would see duplicate parts of the universe all over the place as light would have traveled from one point across it to another.</p><p><br /></p><p>Instead, the observable cosmic horizon is actually continually shrinking while the universe around it continues to expand as the most distant galaxies are moving away from us at an increasing rate, with the most distant exceeding observable rates and essentially &quot;outrunning&quot; the light they emanate.</p><p><br /></p><p>So, no, it isn&#039;t curving back on itself (I believe the likelihood of this has been derived to 1 in one billion now due to broad scale measurements from the Cosmic Microwave Background radiation).[/QUOTE]</p><p><br /></p>

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