Oh, and this imagined world has 11 dimensions, not the four dimensions – up/down, left/right, backwards/forwards and time – we have in our so-called real world.

According to string theory, there are at least 10 dimensions of space, most of which are impossible for humans to perceive.

Few scientific ideas have been as polarizing as string theory. There are good reasons to both love it and hate it.

In order for the math to work, string theory requires that there be 10 dimensions: nine of space and one of time.

How can the string theory's requirement for extra dimensions possibly be reconciled with our everyday experiences in the universe? Curled up and compact ...

Here’s why the hope of String Theory, when you get right down to it, is nothing more than a broken box of dreams.

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.

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.