Space physicist Martin Archer and BBC presenter Nik Gowing
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The science of Higgs boson explained

Scientists at the Large Hadron Collider near Geneva have announced that they believe they have "tantalising hints" of the Higgs boson.

Martin Archer, a space physicist at Imperial College London, explains why the Higgs boson is so important.

Go to next video: David Shukman explains the Higgs boson