The most powerful physics experiment ever built, the Large Hadron Collider will re-create the conditions just after the Big Bang in an attempt to answer Cern lab set for beam milestone ...
Cameron not rejecting tax rises ... fundamental questions of science and the universe itself.
Find out more about the LHC with this BBC News guide, starting at the top of the page with an introduction from Science Correspondent David Shukman. You can then explore key elements of the experiment using the links above.
Special switch-on day coverage: Find out more about Radio 4's Big Bang
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