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CMB Stage-4

(planned 2020s-generation of ground CMB observations)

CMB Stage-4 (CMB-S4) is a coordinated effort to develop new ground-based CMB observations, aiming at deployment roughly in the 2020s. These would be follow-ups to the mid 2010s Atacama Cosmology Telescope (ACT) and the South Pole Telescope. The initiative aims to deploy new technology at both locations (the South Pole and the Atacama Desert) as well as consideration of adding a site (or sites) more northward.

(telescope,microwave,CMB,ground,South Pole,Chile)