Large Hadron Collider back on line

The overhaul involved consolidating 10,000 electrical interconnections between the ring’s superconducting electromagnets, the addition of magnet protection systems, and upgraded cryogenics, ultrahigh vacuum systems, and electronics. In addition, the ring has been reconfigured so that subatomic particles bunch in such a way that the time separating them has been reduced from 50 nanoseconds to 25 nanoseconds, to increase the chances of collisions.

via Large Hadron Collider back on line.