... space flight . ... space physics . ... First flight mirror completes cryogenic testing . The James Webb Space Telescope will give scientists clues about the formation of the universe and the evolution of our own solar system. ... 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, Alabama. ...