James Webb Space Telescope has locked onto guide star in crucial milestone

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The James Webb Space Telescope‘s key pointing instrument is working well in testing, according to two space agencies involved with the observatory’s commissioning work.

The Fine Guidance Sensor (FGS), a contribution from Honeywell on behalf of the Canadian Space Agency, successfully  “locked on” to a specific guide star in tracking mode on Sunday (Feb. 13), the CSA reported Thursday (Feb. 17).

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