NASA’s James Webb Space Telescope remains on track for a launch in October 2018, but with diminished cost and schedule reserves and a range of technical issues remaining, according to the U.S. Government Accountability Office (GAO). In its third congressionally mandated review, the watchdog agency reported Monday the JWST program has started integrating and testing only two of the deep-space infrared (IR) telescope’s elements and major subsystems, with three to go. The spacecraft ...

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