Brian Cox's Adventures in Space and Time

BBC Four HD

8:00 PM to 9:00 PM

Wednesday 11 February

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The physicist takes a fresh look at the concept of gravity, revealing it to be far more than just the force that makes things fall to the ground. He revisits his previous programmes, including being first on the scene to meet a capsule returning three astronauts from the International Space Station, and demonstrating how a bowling ball and feather fall at the same speed in the largest vacuum chamber in the world