What was wrong with Hubble's mirror, and how was it fixed? | BBC Sky at Night Magazine
How NASA fixed Hubble's flawed vision - and reputation - CBS News
Panel Finds Error by Manufacturer of Space Telescope - The New York Times
The 'Camera That Saved Hubble'
The Hubble Space Telescope: concept, delay, embarrassment, despair, and finally – Jubilation, Part 2
How NASA fixed Hubble's flawed vision - and reputation - CBS News
Hubble: 30 years since the telescope sent first image back to Earth! - BBC Newsround
Corning, Kodak, and Hubble – The Pigeon Roost
How the Hubble Space Telescope's 'blurry eyesight' was repaired | Metro News
the difference a 2.2 micrometer defect can make. this is M100, as pictured by the Hubble Telescope before and after the problem was solved [x-post from r/pics] : r/space
How NASA fixed Hubble's flawed vision - and reputation - CBS News