Near-Infrared Imager and Slitless Spectrograph (NIRISS)

Illustrations of the capabilities of the Near Infrared Imager and Slitless Spectrograph. Source:

The Near-Infrared Imager and Slitless Spectrograph (NIRISS) is one of Webb’s four scientific instruments. NIRISS provides near-infrared imaging and spectroscopic capabilities. As the only instrument capable of aperture mask interferometry, NIRISS has the unique ability to capture images of bright objects at a resolution greater than the other imagers. NIRISS is a contribution of the Canadian Space Agency. Honeywell International designed and built the instrument in collaboration with a team at the Université de Montréal. Additional technical support was provided by the National Research Council of Canada’s Herzberg Astronomy and Astrophysics Research Centre.

Source: JWST images