... Tonight's Sky . ... space flight . ... James Webb Space Telescope passes a mission milestone . ... Artist's impression of the James Webb Space Telescope. ... NASA s James Webb Space Telescope has passed its first significant mission milestone for 2014 a Spacecraft Critical Design Review (SCDR) that examined the telescope s power, communications, and pointing control systems. ... James Webb Space Telescope completes cryogenic mirror test . James Webb Space Telescope's "spine" now being built . ...