JWST Secondary Mirror Installation

  • Released Thursday, April 14th, 2016
  • Updated Wednesday, May 3rd, 2023 at 1:48PM
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The sole secondary mirror that will fly aboard NASA's James Webb Space Telescope was installed onto the telescope at NASA's Goddard Space Flight Center in Greenbelt, Maryland, on March 3, 2016.

The Webb telescope uses many mirrors to direct incoming light into the telescope's instruments. The secondary mirror is called the secondary mirror because it is the second surface the light from the cosmos hits on its route into the telescope.

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NASA's Goddard Space Flight Center


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