English: A view of one of the first full-energy collisions between gold ions at Brookhaven National Laboratory's Relativistic Heavy Ion Collider, as captured by the Solenoidal Tracker At RHIC (STAR) detector. The tracks indicate the paths taken by thousands of subatomic particles produced in the collisions as they pass through the STAR Time Projection Chamber, a large, 3-D digital camera. Credit: Image courtesy of Brookhaven National Laboratory.