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18-to-1: JWST's 18 mirrors align
The latest two stages of JWST mirror alignment saw NASA first align the 18 individual images captured by each primary mirror segment into the now-familiar hexagonal shape, and then combine each image at a single point on the NIRCam instrument's sensor. Coarse phasing and fine-tuning stages will now follow, before JWST begins capturing scientific images in the summer. Images: NASA.
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