The world's largest particle collider went live today at 1230 hrs IST on firing two beams of protons in opposite directions around a 17-mile underground ring.
Protons traveled clockwise along the full length of the 4 billion Swiss franc (US$3.8 billion) Large Hadron Collider — described as the biggest physics experiment in history. Five hours later, scientists successfully fired a beam counterclockwise.
Scientists are expected to be able to conduct collisions within a few months. The collider is designed to push the proton beam close to the speed of light, whizzing 11,000 times a second around the tunnel.