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NASA image release September 17, 2010 In preparation for a cryogenic test NASA Goddard technicians install instrument mass simulators onto the James Webb Space Telescope ISIM structure. Credit: NASA/GSFC/Chris Gunn To learn more about the James Webb Space Telescope go to: http://www.jwst.nasa.gov/ NASA Goddard Space Flight Center contributes to NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s endeavors by providing compelling scientific knowledge to advance the Agency’s mission. Follow us on Twitter Join us on Facebook