Taking COCOA cryo

Sep 28, 2012

(Phys.org)—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 is the world's next-generation space observatory and successor to the . 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 .

Explore further: Picasso CubeSat to investigate upper layers of the atmostphere

Related Stories

Recommended for you

Scientists launch CubeSats into radiation belts

10 hours ago

Twin, pintsized satellites built in part at the University of New Hampshire's Space Science Center will be launched into orbit from Vandenberg Air Force Base in California at 9:20 a.m. (EST) Thursday, January ...

Cassini catches Titan naked in the solar wind

10 hours ago

(Phys.org)—Researchers studying data from NASA's Cassini mission have observed that Saturn's largest moon, Titan, behaves much like Venus, Mars or a comet when exposed to the raw power of the solar wind. ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.