The Large Hadron Collider (LHC) experiment could be re-started in the early hours of tomorrow morning at the earliest. Officials said engineers are preparing to send a beam of sub-atomic particles all the way round the 27km-long circular tunnel which houses the LHC.<br/>The 6 billion pound machine on the French-Swiss border is designed to shed light on fundamental questions about the cosmos. Operated by the European Organization for Nuclear Research (Cern), the LHC will create similar conditions to those which were present moments after the Big Bang. The LHC has been shut down for repairs since an accident in September 2008.<br/>