Physics Rocks: Big Bang Day

Brian Cox, CERN Physicist and former member of chart-topping band D:Ream, meets some celebrity enthusiasts of particle physics. He talks to Alan Alda and John Barrowman about their enthusiasm for one of the largest and most ambitious scientific experiments ever undertaken. He travels to CERN with former quantum physicist turned comedian Ben Miller, discusses the shape of the universe with ex-cosmologist Dara O'Briain and ponders the validity of the big bang with Eddie Izzard.