Large Hadron Collider begins second round of data collection

BBC : Science has begun again at CERN’s Large Hadron Collider (LHC). To be accurate, science never stopped happening there, but the teams of scientists working at the LHC have begun officially collecting data from collisions again. The second run of the LHC comes after a two-year shutdown to perform maintenance and upgrades on systems throughout the facility. Today, at 9:40am local time, stable proton beams were guided into position to collide in the two major detectors, ATLAS and CMS, at the 13-TeV energy levels reached last week . The collisions are still happening at a relatively infrequent rate while the detectors are calibrated, but the number of collisions will ramp up significantly over the next several weeks.