Search

James Webb Space Telescope Mirror ‘Cans’

Image Credit: Ball Aerospace

The powerful primary mirrors of the James Webb Space Telescope will be able to detect the light from distant galaxies. The manufacturer of those mirrors, Ball Aerospace & Technologies Corp. of Boulder, Colo., recently celebrated their successful efforts as mirror segments were packed up in special shipping canisters (cans) for shipping to NASA.

The Webb telescope has 21 mirrors, with 18 primary mirror segments working together as one large 21.3-foot (6.5-meter) primary mirror. The mirror segments are made of beryllium, which was selected for its stiffness, light weight and stability at cryogenic temperatures. Bare beryllium is not very reflective of near-infrared light, so each mirror is coated with about 0.12 ounce of gold.

Read more: http://www.nasa.gov/multimedia/imagegallery/image_feature_2358.html

 

 

Comments are closed.

August 2014
M T W T F S S
« Jul    
 123
45678910
11121314151617
18192021222324
25262728293031