Eva Spacewalk

EVA (Extravehicular Activity), commonly known as a spacewalk, is any activity done by an astronaut or cosmonaut outside a spacecraft beyond the Earth's atmosphere. The term originates from the United States space program, while the Soviet/Russian space program refers to it as выход в открытый космос (vyhod v otkrytyy kosmos) in Russian, which translates to "exit into open space". In Chinese, it is known as 太空行走 (tàikōng xíngzǒu), meaning "spacewalk". During an EVA, astronauts perform various tasks such as repairing satellites, conducting scientific experiments, or testing new equipment. The first EVA was performed by Soviet cosmonaut Alexei Leonov on March 18, 1965, and the term has since been used to describe similar activities conducted by astronauts from various space agencies, including NASA, ESA, JAXA, and CSA. EVAs are typically conducted from spacecraft such as the International Space Station (ISS) or the Space Shuttle, and astronauts wear specialized spacesuits, such as the EMU (Extravehicular Mobility Unit) or the Orlan suit, to protect them from the harsh conditions of space.