The Marshall Center has completed final cryogenic testing on six of the 18 mirror segments that will form NASA's James Webb Space Telescope’s primary mirror.
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NASA's James Webb Space Telescope: A Year of Achievement and Success
The first six flight ready James Webb Space Telescope's primary mirror segments are prepped to begin final cryogenic testing at NASA's Marshall Space Flight Center in Huntsville, Ala. NASA/Chris Gunn) The James Webb Space Telescope marked a year of significant progress in 2011 as it continues to come together as NASA's next generation space telescope. The year brought forth a pathfinder backplane to support the large primary mirror structure, mirror cryotesting, creation of mirror support structures, several successful sunshield layer tests and the creation of an assembly station within NASA Goddard Space Flight Center's cleanroom. In December, manufacturing and testing of all flight mirrors was completed in a final test at the X-ray and Calibration Facility at the Marshall Center.
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The first six flight ready James Webb Space Telescope's primary mirror segments are prepped to begin final cryogenic testing at NASA's Marshall Space Flight Center in Huntsville, Ala. NASA/Chris Gunn) The James Webb Space Telescope marked a year of significant progress in 2011 as it continues to come together as NASA's next generation space telescope. The year brought forth a pathfinder backplane to support the large primary mirror structure, mirror cryotesting, creation of mirror support structures, several successful sunshield layer tests and the creation of an assembly station within NASA Goddard Space Flight Center's cleanroom. In December, manufacturing and testing of all flight mirrors was completed in a final test at the X-ray and Calibration Facility at the Marshall Center. › Feature
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Space Telescope Completes Second Round of Testing
James Webb Space Telescope Completes First Test
The first six of 18 segments that will form NASA's James Webb Space Telescope’s primary mirror completed final cryogenic testing this week.
Next Generation Space Telescope Marks Key Milestone
The first six segments of NASA's James Webb Space Telescope's primary mirror for space observations will begin final cryogenic testing this week.
 "James Webb Space Telescope Mirror Testing")