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Nancy Grace Roman Space Telescope
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Rendering of a side view of the Nancy Grace Roman Space Telescope. First slide of an interactive that compares the Roman, Webb and Hubble telescopes. The telescope at NASA's Kennedy Space Center, Florida.
Animated illustration of NASA's Nancy Grace Roman Space Telescope in the center with the Hubble Space Telescope on the left and the James Webb Space Telescope on the right, under a headline reading Nancy Grace Roman Space Telescope.
Illustration of the Nancy Grace Roman Space Telescope with labeled features including solar array sun shield, communications antenna, primary mirror, coronagraph, and wide field instrument. Insets compare its field of view to Hubble and show its ability to block glare for imaging planets. A scale diagram shows the mirror's 2.4 meter diameter. The opening slide to the interactive. An illustration of a telescope under a starry sky.
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Rendering of a side view of the Nancy Grace Roman Space Telescope.
Nancy Grace Roman Space Telescope The Roman Space Telescope is managed by NASA's Goddard Space Flight Center, which produced this rendering.

Nancy Grace Roman Space Telescope

satellite observatory
Also known as: Roman Space Telescope, Wide Field Infrared Survey Telescope(Show More)
Written by
Elijah Tan
Elijah Tan was an Editorial Intern at Encyclopædia Britannica. He is studying Astrophysics and Science Communication at the University of Chicago, where he writes for the Chicago Maroon.
Elijah Tan
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Britannica Editors
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....
Britannica Editors
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•History

Nancy Grace Roman Space Telescope, U.S. satellite observatory designed to investigate dark energy, dark matter, and exoplanets. The telescope carries a primary mirror 2.4 meters (7.9 feet) in diameter and two scientific instruments: the Wide Field Instrument (WFI) and the Roman Coronagraph Instrument. The WFI will give the telescope a field of view over a hundred times larger than that of the Hubble Space Telescope (HST), and the coronagraph will enable it to directly image...

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