neutrino

The IceCube Neutrino Observatory is buried at depths between 1.5 and 2.5 km below the south pole. The only visible equipment is the IceCube Lab, which hosts the computers that collect data from the over 5,000 light sensors in the ice. In this artistic rendering, based on a real image of the lab, the September neutrino event is shown in the ice below Antarctica's surface. Caption and credit: IceCube Collaboration/NSF

Breakthrough: South Pole Lab Finds Ancient Blazar at End of Cosmic Rays Mystery