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• Celestial Object: In space and astronautical engineering, a celestial object is any natural object located outside of Earth's atmosphere, including planets, moons, asteroids, comets, and stars. The study of celestial objects is an important aspect of space e ... Read More >>
• Direction: In space and astronautical engineering, direction refers to the orientation of an object or spacecraft relative to a reference frame. This reference frame can be the celestial sphere, a planet's surface, or an arbitrary coordinate system. D ... Read More >>
• Thermodynamic Cycle: In space and astronautical engineering, a thermodynamic cycle refers to a series of thermodynamic processes that convert heat into work or vice versa. These cycles are used in the design and operation of engines, power plants, and other sys ... Read More >>