(NICMOS) instrument for the Hubble Space Telescope and the Multiband Imaging Photometer (MIPS) instrument for the Spitzer Space Telescope. For the James Webb Space Telescope, Steward built the Near-Infrared Camera (NIRCam) and helped build the Mid-IR Instrument (MIRI).

Other groups include the Center for Astronomical Adaptive Optics (CAAO), the Imaging Technology