The South Pole Telescope (SPT) is a 10 meter Microwave and millimeter telescope at the South Pole aimed at discovering more detail about the Cosmic Microwave Background (CMB). Part of the location's advantage is its altitude: 2800 meters or 9300 feet. Instruments include:
The telescope went into service in March 2007.
CMB Stage-4 (CMB-S4)
Transition Edge Sensor (TES)