How are repairs done on the hubble space telescope?

Repairs on the Hubble Space Telescope were primarily conducted during servicing missions carried out by astronauts aboard Space Shuttle missions. These missions involved spacewalks to replace or upgrade instruments, fix components, and perform routine maintenance. Astronauts used specialized tools and equipment to ensure repairs could be accomplished in the challenging environment of space. With its last servicing mission in 2009, Hubble now operates without the possibility of further repairs.