Proton beams circulate in Big Bang machine 1 year after electrical failure

Proton beams circulate i

Scientists switched on the world's largest atom smasher Friday night for the first time since the $10 billion machine suffered a spectacular failure more than a year ago. It took a year of repairs before beams of protons circulated late Friday in the Large Hadron Collider for the first time since it was heavily damaged by a simple electrical fault. Progress on restarting the machine, on the border between Switzerland and France, went faster than expected the first beam started circulating in a clockwise direction around the machine about 10 p.m., said James Gillies, spokesman for the European Organization for Nuclear Research. Circulation of the beams was a significant leap forward.