Extravehicular activity

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Extravehicular activity (EVA) is any activity performed by an astronaut in outer space outside of a spacecraft. This includes spacewalks, lunar or planetary surface exploration (commonly known as moonwalks), and stand-up EVAs (SEVAs) where astronauts stand through an open hatch without fully leaving the spacecraft. EVAs have been conducted by the Soviet Union/Russia, the United States, and China, with astronauts from Canada, Japan, the United Arab Emirates, and the European Space Agency also participating in EVAs conducted by those nations. Since there is no atmosphere in space, the astronaut is completely dependent on the space suit for environmental support. On March 18, 1965, Alexei Leonov conducted the first spacewalk, lasting 12 minutes and 9 seconds during the Voskhod 2 mission. Neil Armstrong performed the first moonwalk on July 20, 1969, during the Apollo 11 mission, lasting 2 hours and 31 minutes. Svetlana Savitskaya became the first woman to conduct a spacewalk in 1984, spending...

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