The Fabric of the Cosmos - What Is Space? (2011) Full Documentary | NOVA

Brian Greene reveals space as a dynamic fabric that can stretch, twist, warp, and ripple under the influence of gravity. 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. Welcome to PBS America, a channel curated for an international audience from America's Public Broadcasting Service, PBS.

Courtesy of PBS America on YouTube. Watch on YouTube ↗

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