Images of NIRSpec

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Caption: Oct 12, 2009. The NIRSpec Engineering Test Unit. Provided by the European Space Agency, with EADS-Astrium GmbH as Prime Contractor, NIRSpec will be the principal spectrographic instrument on board JWST. The Engineering Test Unit, shown above during 1g sag testing at EADS Astrium, Munich, Germany, reproduces the physical, thermal, electrical and optical (up to the Micro-Shutter Array unit) properties of the flight model. The unit was constructed by EADS Astrium. It will be delivered to NASA for further integration and testing in the payload bay together with the other instruments of the JWST observatory.

For more information, check out this article:
http://sci.esa.int/science-e/www/object/index.cfm?fobjectid=45740

Credit: Eads Astrium