Uploaded December 2016 | Updated September 2026, 10 hours ago

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This time-lapse shows the assembly of the primary mirror of NASA's James Webb Space Telescope. Assembly was completed on 3 February 2016.

Credit: NASA's Goddard Space Flight Center

More information about this video can be found at http://sci.esa.int/jwst/58670-time-lapse-the-assembly-of-the-jwst-primary-mirror/