Space. It separates you from me, one galaxy from the next, and atoms from each other. It is everywhere in the universe. But to most of us, space is nothing, an empty void. Well, it turns out space is not what it seems. Probe some of the deepest mysteries of our times: space as a dynamic fabric that can stretch, twist, warp and ripple under the influence of gravity.

From the passenger seat of a New York cab driving near the speed of light to a pool hall where billiard tables do fantastical things, Brian Greene reveals space as a dynamic fabric that can stretch, twist, warp and ripple under the influence of gravity. Space, far from being empty, is filled with some of the deepest mysteries of our times.

witf will air NOVA: The Fabric of the Cosmos "What Is Space?" at 9 p.m. on November 2.

Watch a preview of the show below.