Making and Testing a Telescope Mirror

Making and Testing a Telescope Mirror

Foucault test

The testing error that led to Hubble mirror fiasco

Joy of Mirror Making: Rough Grinding

NASA Webb Telescope Structure is Sound After Vibration Testing Detects Anomaly - Universe Today

First flight mirror completes cryogenic testing

Telescope That 'Ate Astronomy' Is on Track to Surpass Hubble - The New York Times

Four Lessons in Mirror Testing

SPAC Mirror Lab - Mirror Making

Primary mirror - Wikipedia

Aligning the Primary Mirror Segments of NASA's James Webb Space Telescope with Light - NASA

Parabolizing a Telescope Mirror