The huge sun shield of NASA's James Webb Space Telescope must be carefully folded to fit into a space about the size of a school bus before takeoff. Chris Gunn/NASA hide caption

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Chris Gunn/NASA

Some Assembly Required: New Space Telescope Will Take Shape After Launch

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A NASA team has attached nearly all of the hexagonal segments that will together make the primary mirror for the James Webb Space Telescope (pictured are practice segments). Chris Gunn/NASA hide caption

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Chris Gunn/NASA

Massive Space Telescope Is Finally Coming Together

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Larkin Carey, an optical engineer with Ball Aerospace, examines two test mirror segments designed for the James Webb Space Telescope. The mirror for the scope is extremely powerful, but heavy and pricey. NASA hide caption

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NASA

Could Glitter Help Solve NASA's Giant Telescope Problem?

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