How Scientists Created the James Webb Space Telescope’s First Test Image

Once the telescope unfolded in space, JWST scientists ran a test to make sure it was working. It was a moment of truth after decades of hard work and billions of dollars. See how they aligned the telescope’s mirrors to capture the first test image of a star.

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Ultimate Space Telescope is made possible in part by the Gordon and Betty Moore Foundation and the Heising-Simons Foundation.

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