Three days after the restart, CERN announced that it has circulated two beams simultaneously, and has observed proton-proton collisions. It's an exciting first step, but still a very first step:

"It's a great achievement to have come this far in so short a time," said CERN Director General Rolf Heuer. "But we need to keep a sense of perspective – there's still much to do before we can start the LHC physics programme."

It will still be a while before the LHC can go fishing for the Higgs boson, but the CERN researchers are fired up about collecting data on the proton collisions. The next step will involve altering the intensity and acceleration of the beams while getting a feel for the LHC's performance.

Two circulating beams bring first collisions in the LHC [CERN]

The first Proton was launched in 1965. It was originally designed as one huge freaking Intercontinental Ballistic Missile, with a massive range and terrifying nuclear payload. Since the East coast of the U.S. is not currently a smoking radioactive crater, you can be sure it was never actually used this way. Instead, it was put to work hauling satellites into orbit, as well as chunks of the Mir space station. Despite some recent mission failures, Protons are still regularly contracted out by international companies who need to get something heavy into space. In this case, British company Inmarsat hired a Proton to put their 6-ton Inmarsat-4 (I4-F3) telecommunications satellite into orbit. By the time you read this, we'll know if it was deployed successfully.

This photo by Flickr user alexpgp shows a Proton being lifted into launch position at Baikonur.
If you head over to his Baikonur Campaigns page, you can see a huge gallery of cool insider photos taken inside Baikonur as engineers prepare for various launch missions (apparently alexpgp is an engineer with one of the companies that hires Proton rockets). Top image by: BBC News.

Proton rocket in return to flight. [BBC News]