Yesterday, when I said, The LHC has officially become the world’s highest-energy collider, by colliding protons at 2.36 TeV (above the Fermilab Tevatron’s record of 1.96 TeV), I misunderstood a point in the press release that wasn’t heavily...

In the past week, three milestones have been passed: the first π0 particles have been reconstructed from their decay products, shown at the public LHC week 1 conference (by CMS and LHCb); the LHC has officially become the world’s highest-energy...

At least it looks like it from this CMS event display: See the CMS e-commentary for hourly updates and more information.  (That’s how I know which results are public. ) The yellow boxes are silicon strips that detected the passage of particles...

The beam went three times around the LHC ring: see CMS’s e-commentary and CERN’s twitter.  This is the milestone that was a big media event last year (September 10, 2008). Update: now it’s 500 times around the ring (about 0.05 seconds).  Last year’s...

See CMS e-commentary for live updates. “Beam-splashes” are when a beam is threaded part-way through the LHC ring, then deliberately collided with an absorbing block of tungsten to stop it, upstream of a detector. Many particles are created in this...