Whats the purpose of a spacewalk?
Spacewalks allow astronauts to make repairs or install equipment on the outside of a spacecraft. The International Space Station, the world’s largest construction in space, requires frequent spacewalks for astronauts to add additional rooms or hardware to the orbiting laboratory, or replace aging equipment. Numerous spacewalks over the course of four servicing missions to the Hubble Space Telescope have allowed astronauts to make repairs and upgrades to the famous observatory. Additionally, astronauts can perform scientific experiments during spacewalks to test how space affects different materials and equipment.