Distance
Distance is the measurement of the amount of space between two objects or points. In space and astronautical engineering, distance is a crucial factor in determining the trajectory and travel time of spacecraft. The vast distances between celestial bodies in space require precise calculations and measurements to ensure successful missions. Distance is measured in various units such as kilometers, miles, astronomical units, and light-years. The speed of light is often used as a reference point for measuring distance in space, as it is the fastest known speed in the universe. The distance between Earth and other planets, moons, and asteroids is constantly changing due to their orbits around the sun, making it necessary to constantly update and recalculate distance measurements.
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