Nancy Grace Roman Space Telescope

  • Released Thursday, July 21st, 2016
  • Updated Tuesday, May 7th, 2024 at 12:00AM


Formerly known as WFIRST, the Wide Field Infrared Survey Telescope, the Roman Space Telescope is a NASA observatory designed to perform wide field imaging and surveys of the near infrared (NIR) sky. The current design of the mission makes use of an existing 2.4m telescope, which is the same size as the Hubble Space Telescope. The Roman Space Telescope is the top-ranked large space mission in the New Worlds, New Horizon Decadal Survey of Astronomy and Astrophysics. The Wide Field Instrument will provide a field of view of the sky that is 100 times larger than images provided by HST. The coronagraph will enable astronomers to detect and measure properties of planets in other solar systems.

More information about the Roman Space Telescope

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Full-form videos with narration and interviews

Spacecraft Hardware

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Information about the Roman Space Telescope spacecraft, its instruments, and technical details about the mission.


The Roman Space Telescope will study large-scale features of the universe to learn more about dark energy and dark matter.


The Roman Space Telescope will advance our understanding of exoplanets, provide a comprehensive view of the formation, evolution, and physical properties of planetary systems, and lay the foundation for, the discovery and characterization of a habitable Earth-like planet orbiting a nearby star.

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