POLARBEAR detects curls in the universes oldest light Cosmologists have made the most sensitive and precise measurements yet of the polarization of the cosmic microwave background. POLARBEAR measures remnant radiation from the Big Bang, which has cooled and stretched with the expansion of the universe to microwave lengths. This cosmic microwave background, the CMB, acts as an enormous backlight, illuminating the large-scale structure of the universe and carrying an imprint of cosmic history. Kam Arnold (the corresponding author of the report who has been working on the instrument for a decade.) and many others have developed sensitive instruments called bolometers to measure this light. Arrayed in the telescope, the bolometers record the direction of the lights electrical field from multiple points in the sky
Posted on: Wed, 22 Oct 2014 18:45:04 +0000
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