Key Science Instrument Installed into Webb Structure
Engineers worked meticulously to implant the James Webb Space Telescope's Mid-Infrared Instrument into the ISIM, or Integrated Science Instrument Module, in the cleanroom at NASA's Goddard Space Flight Center in Greenbelt, Md. As the successor to NASA's Hubble Space Telescope, the Webb telescope will be the most powerful space telescope ever built. It will observe the most distant objects in the universe, provide images of the first galaxies formed and see unexplored planets around distant stars.
The MIRI itself weighs 181 pounds (82 kg) and is being held by a special balance beam (on the left of the photo), which is being maneuvered using a precision overhead crane by the engineer at the base of the ladder. Photo Credit: NASA/Chris Gunn; Text Credit: NASA/Laura Betz
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