Webb Telescope's MIRI flight instrument completes cryogenic testing in the UK

A pioneering camera and spectrometer that will fly aboard NASA's James Webb Space Telescope has completed cryogenic testing designed to mimic the harsh conditions it will experience in space. The Mid-Infrared Instrument (MIRI) underwent testing inside the thermal space test chamber at the Science and Technology Facilities Council's Rutherford Appleton Laboratory (RAL) Space in Oxfordshire, U.K. The sophisticated instrument is designed to examine the first light in the universe and the formation of planets around other stars.

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