We all know we live in three-dimensional space. But what does it mean when people talk about four dimensions? Is it just a ...

We live in a three-dimensional reality. Because of that, it's pretty hard to imagine what a four-dimensional reality might be like, but that isn't stopping physicists from trying to figure it out. A ...

A pair of identical particles swapping places sounds like a small move. In quantum physics, it is a defining one. In everyday ...

In our three-dimensional space, elementary particles neatly filter into either bosons or fermions. But in lower dimensions, that distinction gets a bit murky.

Try picturing a fourth dimension. Take a few steps forward. Veer left for a second dimension, then jump up for a third dimension. Then dive off into a fourth dimension, somewhere, somehow, in a ...