JWST's Integrated Science Instrument Module inside the Space Environment Simulator at NASA's Goddard Space Flight Center
This is the view from the top of the Space Environment Simulator (SES) thermal vacuum chamber during installation of the James Webb Space Telescope's (JWST) Integrated Science Instrument Module (ISIM). To avoid contamination the ISIM is fully packed in protective foil material. This material was removed after the chamber lid was installed and before the testing started.
Last Update: 1 September 2019