Large Hadron Collider restarted

Scientists have successfully restarted the Large Hadron Collider, the most powerful atom-smasher ever built, hoping to enter a new realm of physics.

Two beams of particles travelling a whisker below the speed of light were sent flying in opposite directions through the Large Hadron Collider’s 27km of circular underground tunnels straddling the Swiss-French border.

Amid scenes of jubilation in the Large Hadron Collider control room, Professor Rolf Heuer, director general of Cern, the European Organisation for Nuclear Research, said: “Congratulations. Thank you very much everyone ... now the hard work starts.”