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Completed Optical Telescope Element

In the center of a clean room is Webb’s primary mirror, which has 18 hexagonal, gold-colored segments, and secondary mirror, supported by two thin, gray struts.
The complete optical telescope element on display inside a clean room at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, in 2017.
  • Release Date
    April 13, 2017
  • Credit
    Image: NASA, Desiree Stover

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Last Updated
Aug 28, 2025
Contact
Media

Laura Betz
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
laura.e.betz@nasa.gov

Image Credit

NASA, Desiree Stover

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