Side profile of a man standing in front of Roman's primary mirror.

Spacecraft & Launch · NASA Roman mission site

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The Roman team modified the inherited mirror's shape and surface to meet the mission's science objectives. The mirror sports a layer of silver less than 400 nanometers thick — about 200 times thinner than a human hair. The silver coating was specifically…

Released
January 29, 2026
Category
Spacecraft & Launch
Size
2,048 × 1,535 pixels
Credit
NASA/Chris Gunn

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Source: science.nasa.gov/missions/roman-space-telescope/building-roman

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