Extravehicular activity refers to the scientific and technological practice of humans venturing outside their spacecraft in space.
Vostok 3 Explained
Vostok 3 was a Soviet space mission that launched the first woman into space, Valentina Tereshkova, in 1963.
STS-95 Explained
STS-95 was a NASA space shuttle mission that marked the return to space of John Glenn, the first American to orbit the Earth.
Mercury-Atlas 9 Explained
Mercury-Atlas 9 was the final manned space mission of NASA’s Mercury program, successfully orbiting the Earth and making John Glenn the first American to orbit the planet.