NOVA | The Fabric of the Cosmos - What Is Space? (2011)
Brian Greene reveals space as a dynamic fabric that can stretch, twist, warp, and ripple under the influence of gravity.
2025-02-20 19:00:00 - Nova PBS
Stranger still is a newly discovered ingredient of space that actually makes up 70% percent of the universe. Physicists call it dark energy because while they know it’s out there, driving space to expand ever more quickly, they have no idea what it is.