Michael Dean, senior project engineer for the Joint Polar Satellite System (JPSS) program at Ball Aerospace, right, speaks with acting NASA Deputy Administrator Lesa Roe, second from left, and acting NASA Administrator Robert Lightfoot, center, about the 20ft. by 24 ft. vertical thermal vacuum chamber, Thursday, April 6, 2017 during a visit to Ball Aerospace in Boulder, Colo.

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Keywords: acting, administrator, aerospace, ball, boulder, colorado, dean, deputy, joel, kowsky, lesa, lightfoot, michael, nasa, robert, roe, usa