Reaction wheel
Videos
A reaction wheel is an electric motor attached to a flywheel, which, when its rotation speed is changed, causes a counter-rotation proportionately through conservation of angular momentum. A reaction
A small reaction wheel viewed in profile
A momentum/reaction wheel comprising part of a high-accuracy Conical Earth Sensor to maintain a satellite's precise attitude
Spacecraft
Videos
A spacecraft is a vehicle that is designed to fly and operate in outer space. Spacecraft are used for a variety of purposes, including communications, Earth observation, meteorology, navigation, space
More than 140 Soviet and Russian crewed Soyuz spacecraft (TMA version shown) have flown since 1967 and now support the International Space Station.
The first artificial satellite, Sputnik 1, launched by the Soviet Union
Apollo 17 Command Module America in lunar orbit
American Mercury, Gemini, and Apollo spacecraft