Site icon Vern Bender

General relativity incorporates special relativity.

A universe is a frigid place.  The universe has no edge.  The visible light cannot keep up with the universe’s expansion; it outruns the light.  We do not know if the universe is infinite.  We could only be seeing a patch of the universe.  The known universe is nin\ty two e billion light-years across.  Explosions expand until the explosion is over.  We don’t know if the universe was flat or curved after the big bang.
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