![NASA History Office on X: "Did you know the Hubble Space Telescope needed glasses? A tiny manufacturing error caused it to have blurry vision. #OTD in 1993, astronauts launched on a mission ( NASA History Office on X: "Did you know the Hubble Space Telescope needed glasses? A tiny manufacturing error caused it to have blurry vision. #OTD in 1993, astronauts launched on a mission (](https://pbs.twimg.com/media/EoRZ6qzXEAAzhdy.jpg)
NASA History Office on X: "Did you know the Hubble Space Telescope needed glasses? A tiny manufacturing error caused it to have blurry vision. #OTD in 1993, astronauts launched on a mission (
![The Hubble Space Telescope: concept, delay, embarrassment, despair, and finally – Jubilation, Part 2 The Hubble Space Telescope: concept, delay, embarrassment, despair, and finally – Jubilation, Part 2](https://www.eeworldonline.com/wp-content/uploads/2019/10/WHTH_Hubble_Pt2-of-4_Fig1a.png)
The Hubble Space Telescope: concept, delay, embarrassment, despair, and finally – Jubilation, Part 2
![TIL that the Hubble Telescope's mirrors are ground so precisely that if they were scaled up to be the size of Earth, the largest bump would be 6 inches tall. : r/todayilearned TIL that the Hubble Telescope's mirrors are ground so precisely that if they were scaled up to be the size of Earth, the largest bump would be 6 inches tall. : r/todayilearned](https://external-preview.redd.it/uEu11M9_cv_m-W6lucz1Cn7ub6fZH73OdO3Gc8Q7nrA.jpg?auto=webp&s=5605d480b3ee1f266cd0f316dfbecdc224f1708b)