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astronautics
Science of navigation in space and all of its related human activities.
spacesuit
A pressurized watertight suit that provides the astronaut with oxygen and protects against solar rays and meteorites during space walks.
international space station
Complex made up of some 10 modules in orbit around Earth; built and assembled by 15 countries, it is used to conduct scientific and technological research on weightlessness.
space probe
Unmanned craft launched in the direction of a celestial body in the solar system for purposes of studying it.
