Final prelaunch tests will begin Jan. 11 for NASA’s Interface Region Imaging Spectrograph (IRIS) mission now that Lockheed Martin Space Systems has completed integrating the science instruments with the spacecraft at its Advanced Technology Center in Palo Alto, Calif. One of NASA’s Small Explorer (SMEX) missions, IRIS is budgeted at $170 million, including launch, for a nominal two-year mission. Lockheed Martin IRIS Program Manager Gary Kushner says the spacecraft will enter thermal ...


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