Horizon
Gravity is redefined as the curvature of spacetime caused by massive objects, revolutionizing our comprehension of the fundamental forces that govern the universe.

Gravity is redefined as the curvature of spacetime caused by massive objects, revolutionizing our comprehension of the fundamental forces that govern the universe.
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Studio(s): British Broadcasting Corporation (BBC)
Originally Released: United States, Jan 29, 2008
Genres:Documentary