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NASA’S Webb Telescope Team Completes Optical Milestone


Engineers working on NASA’s James Webb Space Telescope met another milestone recently with they completed performance testing on the observatory’s aft-optics subsystem at Ball Aerospace & Technologies Corp’s facilities in Boulder, Colo. Ball is the principal subcontractor to Northrop Grumman for the optical technology and lightweight mirror system.

“Completing Aft Optics System performance testing is significant because it means all of the telescope’s mirror systems are ready for integration and testing,” said Lee Feinberg, NASA Optical Telescope Element Manager for the James Webb Space Telescope at the Goddard Space Flight Center in Greenbelt, Md.

Since last May, the AOS has undergone a series of thermal, vibration and cryogenic testing to demonstrate that it can withstand the rigorous vibration environment of the rocket launch and remain precisely aligned in order to function at the extremely cold temperatures in space.

Full Story: http://www.nasa.gov/mission_pages/webb/news/aft-optics.html
Also: http://www.ballaerospace.com/page.jsp?page=30&id=511

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