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Cold, it will actually glow brighter than the objoro blo th, engineers designed a first of its kind sun shield, the size of a tennis court. its five layers will keep the telescope side more than 600 degrees colder than the sun facing side. >> this material here is about 2 thousandths of an inch thick. >> reporter: once in space, webb will carefully unfold and rebuild itself like robotic origami. project manager bill oaks. >> the complexity, the deployment, the materials has never been tried by a...