ALMA astronomers and telescope operators occupy this control room 24-hours a day, seven days a week. When this photo was taken, ALMA was not yet complete, but the array was active and doing science. The control room was divided into new antenna testing (right) and array science stations (left). All telescopes, whether they are actively observing in the array or are being put through their paces in the testing area, are controlled from this room. Data collected by the telescopes and their supercomputer are also received and processed here.