The Hubble Space Telescope (HST) (Schematic)
NASA's James Webb Space Telescope Secondary Mirror Deploys for the First Time Using the Spacecraft Flight Electronics | Northrop Grumman
Optical Telescope Element - Wikipedia
Hubble-Webb Mirror Comparison
Observatory - Optics | NASA
The testing error that led to Hubble mirror fiasco | New Scientist
DOD Secures Critical Material for James Webb Space Telescope > U.S. Department of Defense > Story
The ten-billion-dollar gamble: The JWST's magnificent mirrors – Physics World
Hubble vs James Webb Space Telescope mirror size - YouTube
James Webb Space Telescope extends secondary mirror - BBC News
What was wrong with Hubble's mirror, and how was it fixed? | BBC Sky at Night Magazine
Mirror substrates and glass-ceramics for telescopes | SCHOTT
Telescope Primary Mirror Sizes Compared
Observatory - Optics | NASA
ESA - The largest infrared space telescope
Observatory - Optics | NASA
James Webb: Inside NASA's gold-mirrored space telescope - CNN Style
Hubble Space Telescope's Internal Components (Light Path)
Hubble - Construction, The Hubble Mirror, Blurred Vision, Hubbles Contact Lens
L3Harris Completes The Primary Mirror For NASA's Roman Space Telescope – SatNews
NASA Completes Giant Mirrors for Hubble Successor Telescope | Space
What was wrong with Hubble's mirror, and how was it fixed? | BBC Sky at Night Magazine
Observatory - Optics | NASA
