JWST and its Instruments

Links to find out more about JWST's science instruments and how they compare with HST's science instruments.

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Observing modes with JWST

JWST is equipped with four science instruments sensitive over a wide wavelength range from the optical to the mid-infrared (0.6 - 28.3 micron). Use the graphic to explore the observing modes and identify those most suitable for your science observations; learn about the imaging and spectroscopic capabilities offered; or navigate directly to the science instrument webpages highlighted below.

Figure 1. JWST observing modes

JWST science instruments

Mid-Infrared Instrument (MIRI)

Near-Infrared Camera (NIRCam)

Near-Infrared Imager and Slitless Spectrograph (NIRISS)

Near-Infrared Spectrograph (NIRSpec)

Comparison of JWST and HST instruments and modes

See Guidelines for Proposals where JWST and HST Overlap in Capabilities at JDox.

Next: Proposal Types, Sizes and Science Areas

Notable updates

Originally published