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Camera Overcomes Redshift for Astronomical Imaging

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Upgraded light sensors have enabled a camera to image outer space at red wavelengths that are too red for the human eye to see. Star trails take shape around Kitt Peak National Observatory in this long-exposure image. The 4-m Mayall Telescope building, at right, now houses Mosaic-3, an IR camera. Courtesy of P. Marenfeld, NOAO/AURA/NSF. Due to an effect known as redshift, very distant astronomical objects appear much redder when observed on Earth. The camera’s sensitivity to red light enables it to detect objects many billions of light years away. The light sensors were...Read full article

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    Published: February 2016
    Glossary
    astronomy
    The scientific observation of celestial radiation that has reached the vicinity of Earth, and the interpretation of these observations to determine the characteristics of the extraterrestrial bodies and phenomena that have emitted the radiation.
    CCDinfrared camerasResearch & TechnologyAmericasYaleBerkeley LabCaliforniaImagingcamerasastronomyMosaic-3NOAOTech Pulse

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