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    A detailed image of the Orion Nebula, showcasing various shades of red, pink, and brown interstellar clouds with bright stars scattered throughout.
    The Orion Nebula in an image from the Hubble Space Telescope. The James Webb Space Telescope’s infrared detectors will “look inside those dusty clouds, around the dust rings to see stars and galaxies growing,” Mather says.
    Engineers in cleanroom suits inspect the James Webb Space Telescope with its large, gold-coated primary mirror composed of hexagonal segments.
    The honeycomb primary mirror of the James Webb Space Telescope at NASA’s Johnson Space Center in 2018, where the mirror and the science instruments (not pictured) were placed inside a cryovacuum chamber that replicated the freezing temperatures the telescope will operate in.