Photo: David Higginbotham/NASA/Redux
These six hexagons represent one-third of the primary mirror array that will allow the James Webb Space Telescope to capture images of objects in the deep reaches of space. The mirrors are being prepped for cryogenic testing at NASA’s Marshall Space Flight Center to ensure that they can stand up to the subzero temperatures they’ll be exposed to in space.











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Willie Jones
Willie Jones is an associate editor at IEEE Spectrum. In addition to editing and planning daily coverage, he manages several of Spectrum's newsletters and contributes regularly to the monthly Big Picture section that appears in the print edition.
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