Even the Webb telescope’s engineering test images manage to wow - Ars Technica

The data was taken to test how well the telescope could stay locked onto a target.

Enlarge/ This Fine Guidance Sensor test image was acquired in parallel with NIRCam imaging of the star HD147980 over a period of eight days at the beginning of May. 225 with 120 posters participatin… [+2180 chars]

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