Limits RegistryPUBLIC RECORD
Limits RegistryThe James Webb Space Telescope, launched December 25, 2021, has a segmented primary mirror 6.5 m in diameter — the largest mirror ever launched into space, over six times the light-collecting area of the Hubble Space Telescope's 2.4 m mirror. Its 18 gold-coated beryllium segments unfolded after launch, since the mirror was too large to launch fully assembled.
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The James Webb Space Telescope, launched December 25, 2021, has a segmented primary mirror 6.5 m in diameter — the largest mirror ever launched into space, over six times the light-collecting area of the Hubble Space Telescope's 2.4 m mirror. Its 18 gold-coated beryllium segments unfolded after launch, since the mirror was too large to launch fully assembled.
The greatest primary mirror diameter of any telescope operating in space, as opposed to ground-based observatories.
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Limits Registry. LR-JWST-LARGEST-SPACE-TELESCOPE. Largest space telescope mirror. 2026.