She’s So ColdCredit: NASA/Chris Gunn
Tuesday, May 15, 2012: Components of the James Webb Space Telescope undergo testing in the thermal vacuum test chamber at NASA’s Goddard Space Flight Center in Greenbelt, Md. Here, the Optical Telescope Element Simulator (OSIM), wrapped in a silver blanket on a platform, descends into the Space Environment Simulator vacuum chamber via crane to see if it will withstand the cold temperatures of space. Image released April 30, 2012.