GENEVA, Switzerland, May 21 (UPI) -- The Large Hadron Collidor has broken energy records by colliding protons at 13 trillion electron volts, or TeV, nearly double the energy of its first beam after being turned back on in April for the first time in two years.
The collisions are part of testing that scientists at CERN are doing before the declare "stable beams" in June and begin recording measurements as part of the physics experiments conducted using the LHC. No collisions had been conducted since 2013, as maintenance and upgrades were made to prepare for this upcoming round of experiments.