A vehicle designed to operate in space; idealized motion models use conservation of momentum, gravitational potential energy, and thrust or environmental interaction as appropriate.
A space probe used in idealized examples of gravitational escape and motion through interstellar matter. An exam's radial solar-escape approximation need not represent the probe's actual trajectory.
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A spacecraft is a vehicle designed for travel or operation in outer space. It can be manned or unmanned and is used for a variety of purposes, including exploration, scientific research, communication, and transportation of cargo or personnel. Spacecraft can be classified into several categories, including: 1. **Orbiters**: These spacecraft are designed to enter and maintain orbit around a celestial body, such as a planet or moon. They are often used for long-term scientific observations.