This page provides links to find out more about JWST's science instruments.  JWST is equipped with four science instruments sensitive over a wide wavelength range, from the optical to the mid-infrared (0.6–28 μm). A top-level summary of the instruments' technical capabilities is provided in the JWST Pocket Guide. Detailed technical information can be accessed from the links below, or from the left sidebar.

As stated in the Cycle 6 Call for Proposals, the full suite of JWST capabilities is offered, including new capabilities not previously available. Proposers should write proposals assuming all capabilities will be tested and available. STScI will keep the JWST community informed of any changes via the JWST Observer News and Late Breaking News. 

• JWST Observatory Hardware
  • JWST Observatory Overview
• Mid-Infrared Instrument (MIRI) 
  • MIRI JWST User Documentation (JDox)
• Near-Infrared Camera (NIRCam)
  • NIRCam JWST User Documentation (JDox)
• Near-Infrared Imager and Slitless Spectrograph (NIRISS)
  • NIRISS JWST User Documentation (JDox)
• Near-Infrared Spectrograph (NIRSpec)
  • NIRSpec JWST User Documentation (JDox)