Roman Space Telescope: Unique Capabilities

The Nancy Grace Roman Space Telescope, with its repurposed spy satellite mirror, offers an unprecedented wide-field view of the infrared universe, complementing existing observatories like Hubble and JWST.

The top 3

1. Roman's Key Scientific Goals: The Roman Space Telescope aims to unravel the mysteries of dark energy and dark matter, discover and image thousands of exoplanets, and conduct extensive infrared astrophysics surveys of billions of galaxies.
2. Roman Optics vs. Hubble & JWST: Roman has a 2.4-meter primary mirror, identical in size to Hubble's but 80% lighter, and boasts a field of view 100-200 times wider than Hubble's infrared channel and 50 times wider than JWST's.
3. Challenges of Repurposing Canceled Hardware: Repurposing a canceled spy satellite mirror involves adapting its fast optics for scientific missions, ensuring its functionality in extreme space temperatures, and developing novel techniques like gravity sag measurements for lightweight mirrors during ground testing.

Sources

• Nancy Grace Roman Space Telescope | Spacecraft | ISAS
• Nancy Grace Roman Space Telescope - IPAC/Caltech
• Nancy Grace Roman Space Telescope | STScI
• ESA - Roman factsheet - European Space Agency
• Nancy Grace Roman Space Telescope - L3Harris Technologies
• How NASA's new Nancy Grace Roman space telescope compares with Hubble and Webb

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