SNO+ event display lights up the night

After years of hard work by many people, the SNO+ detector comes to life.  This is a 3D map of all the photomultiplier tubes in SNO+.  The colors indicate how many photons were seen by each photomultiplier (red = high, blue = low).  A ring-shaped image, like the one recorded here, is typically produced when a neutrino from the atmosphere interacts in the water-filled volume of the detector.