The Keck Array is a suite of telescopes designed to measure the Cosmic Microwave Background polarization at high precision in search of the B-mode signature of inflation. Each Keck telescope duplicates the BICEP2 detector and optical design inside a compact, pulse tube cooled cryostat. This design allows up to five identical telescopes to be deployed on the DASI mount, located at the Martin A. Pomerantz Observatory at Amundsen-Scott South Pole Station.

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The Keck Array was deployed during the austral summer of 2010-2011. Three receivers were installed in 2011, with two additional receivers following in 2012. All five receivers are now observing at 150 GHz.

Most Recent Image from the South Pole Web Cam