Professor Brian Cox takes on the story of the force that sculpts the entire universe - gravity. It seems so familiar, and yet gravity is one of the strangest and most surprising forces in the universe. In a zero gravity flight, Brian considers how much of an effect gravity has had on the world around us. But gravity also acts over much greater distances and orchestrates the cosmos. A BBC Production.

Originally released by BBC, 2011. Streaming video file encoded with permission for digital streaming by Infobase on May 02, 2015.

Fundamental Natural Force (2:23); --Zero Gravity Flight (3:44); -- Gravity Definition (2:29); -- Lunar Tide (2:49); -- Galaxy Glue (3:30); -- Cosmic Collision (2:46); -- Gravity Force Experiment (5:20); -- Supernova Explosion Pictograph (3:30); -- Crab Nebula (4:07); -- Theory of General Relativity (5:58); -- Black Hole (5:20); -- Event Horizon (3:24); -- Dual Nature (3:16); -- Credits: Falling: Wonders of the Universe (0:44); .