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SPACE SCOPES
Taking COCOA Cryo
by Staff Writers
Washington DC (SPX) Oct 03, 2012


COCOA was built by ITT Exelis of Rochester, N.Y., and its subcontractor Micro Instruments in Rochester, N.Y.

Testing of the James Webb Space Telescope's Center of Curvature Optical Assembly, or COCOA, recently was completed in the X-ray and Cryogenic Test Facility at NASA's Marshall Space Flight Center in Huntsville, Ala.

The optical assembly was operated in a vacuum at both room temperature and cryogenic - or deep cold - temperatures to certify its performance before it is used to test the performance of Webb's 21.3 foot primary mirror. COCOA's operation and performance must be verified alone before it can be used to test Webb under conditions that the observatory will experience in space.

The Webb telescope includes 18 six-sided mirror segments, which work together to form one large, 21.3-foot mirror.

COCOA was built by ITT Exelis of Rochester, N.Y., and its subcontractor Micro Instruments in Rochester, N.Y.

The James Webb Space Telescope is the world's next-generation space observatory and successor to the Hubble Space Telescope.

The most powerful space telescope ever built, the Webb telescope will provide images of the first galaxies ever formed, and will explore planets around distant stars. It is a joint project of NASA, the European Space Agency and the Canadian Space Agency.

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Related Links
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Space Telescope News and Technology at Skynightly.com






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SPACE SCOPES
First Two Webb Telescope Flight Mirrors Delivered to NASA
by Rob Gutro for Goddard Space Flight Center
Greenbelt, MD (SPX) Sep 26, 2012 The first two of the 18 primary mirrors to fly aboard NASA's James Webb Space Telescope arrived at NASA's Goddard Space Flight Center in Greenbelt, Md. The mirrors are going through receiving and inspection and will then be stored in the Goddard cleanroom until engineers are ready to assemble them onto the telescope's backplane structure that will support ... read more


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