Contact: Rob Gutro
Robert.j.gutro@nasa.gov
443-858-1779
NASA/Goddard Space Flight Center

The Webb OSIM Going into Vacuum Chamber

Caption: The OTE (Optical Telescope Element) Simulator or OSIM wrapped in a silver blanket on a platform, is being lowered down into a vacuum chamber (called the Space Environment Simulator, or SES) by a crane to be tested to withstand the cold temperatures of space.

Credit: NASA/Chris Gunn

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Related news release: NASA Goddard engineers testing Webb Telescope's OSIM and BIA instruments