Spacecraft guidance refers to the methods and technologies used to control the trajectory and orientation of a spacecraft during its mission. This involves calculating the necessary maneuvers to reach a specific destination, such as a planet or satellite, while ensuring the spacecraft remains stable and on course. Key components of spacecraft guidance include navigation, which determines the spacecraft's position, and control systems, which execute the required adjustments. These systems work together to ensure that the spacecraft can perform tasks like entering orbit, landing, or docking with other spacecraft effectively and safely.