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 NASAs mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASAs endeavors by providing compelling scientific knowledge to advance the Agencys mission. Follow us on Twitter Join us on Facebook