An eruption of cosmic knots at the Big Bang may explain why our universe has three dimensions. | Keith Wood/Vanderbilt

A New Theory Explains Why the Universe Is Three Dimensional

Physicists have a new scenario of the universe's expansion at the Big Bang that may explain why our universe has three large spatial dimensions.

Published On 10/19/2017
7:58 PM EDT
W W e take for granted that we live in a world of three dimensions governed by the laws of physics, and don't often wonder why. But a group of physicists just hatched a new theory that they think may explain our three-dimensional universe.