James Webb Space Telescope first flight mirror completes cryogenic testing
Wednesday, April 8, 2009 - 10:49
in Astronomy & Space
(PhysOrg.com) -- The first mirror segment that will fly on the James Webb Space Telescope, built by Northrop Grumman Corporation, has completed its first series of cryogenic temperature tests in the X-ray and Cryogenic Facility at the Marshall Space Flight Center in Huntsville, Ala.