In preparation for the upcoming first LHC collisions, ATLAS has started operating 24 hours a day, 7 days a week. I have been on shift 7am to 3pm for the last 3 days. The control room is full of activity as everyone is making sure we are ready (hopefully in about a month) for beam and then proton collisions in the LHC.
What we are doing now is recording data on muons created in cosmic-ray collisions in the atmosphere. In the picture you can see a screenshot of a web page where you can go to see displays of the last 100 events collected by the ATLAS detector.
You can also see what’s happening in the ATLAS control room right now on the web cam (or the other one).