How do spacecraft change direction in space?

The spacecraft can rotate or change direction thanks to the small propulsion systems that are usually located in the front and rear sections of the space shuttles. Motion control systems provide unidirectional and stronger push, different from the main engine. Rotating wheels are used in many satellites and Hubble Space Telescopes. These wheels are used in situations where the spacecraft must make a very precise turn, and it ensures that the spacecraft only rotates around itself. In this system, which uses the principle of conservation of angular momentum, when the wheels turn in a certain direction, the spacecraft reacts in such a way that the total angular momentum of the system remains constant. The energy required for these wheels to rotate is usually provided from solar panels.