The Nancy Grace Roman Space Telescope is a NASA infrared space telescope with a 2.4 m (7.9 ft) wide field of view primary mirror and two scientific instruments. The Wide-Field Instrument (WFI) is a 300.8-megapixel multi-band visible and near-infrared camera, providing a sharpness of images comparable to that achieved by the Hubble Space Telescope over a 0.28 square degree field of view, 100 times larger than imaging cameras on the Hubble. The Coronagraphic Instrument (CGI) is a high-contrast, small field of view camera and spectrometer covering visible and near-infrared wavelengths using novel starlight-suppression technology. Roman objectives include a search for extra-solar planets using gravitational microlensing, and probing the expansion history of the Universe and the growth of cosmic structure, with the goal of measuring the effects of dark energy, the consistency of general relativity, and the curvature of spacetime.
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Nancy Grace Roman Space Telescope
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NASA’s Roman Space Telescope Primary Mirror Gets Last Look
Engineers at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, have completed their final inspection of a key element for the agency’s Nancy Grace Roman Space Telescope: the primary mirror. This 7.9-foot (2.4-meter) mirror will collect and focus light from cosmic objects near and far, helping Roman capture stunning panoramas of space. “The Roman engineering […]
Nancy Grace Roman Space Telescope Poster
NASA/Jenny Mottar Downloads Print high resolution PDF May 28, 2026 PDF (144.47 MB) Print high resolution image May 28, 2026 PNG (45.60 MB) Smaller image for web view May 28, 2026 PNG (3.75 MB)
Hubble Survey Sets Up Roman’s Future Look Near Milky Way’s Center
The Milky Way’s galactic bulge, the bulbous region that surrounds the galactic center, contains a dense collection of stars, planets, and other free-floating objects. This region has been studied for decades with numerous ground-based and space-based telescopes, including NASA’s Hubble and James Webb space telescopes. Soon, NASA’s Nancy Grace Roman Space Telescope will be the […]
Key Support Equipment Arrives at Kennedy for Roman Space Telescope
Technicians at NASA’s Payload Hazardous Servicing Facility (PHSF) at the agency’s Kennedy Space Center in Florida offloaded eight high-efficiency particulate air (HEPA) wall modules and other ground support equipment on April 27. The equipment will support launch processing of the agency’s Nancy Grace Roman Space Telescope. Each 1,800-pound module enhances the PHSF’s clean room systems, helping meet […]