Charge
In space and astronautical engineering, charge refers to the property of matter that causes it to experience a force when placed in an electromagnetic field. This force can be either attractive or repulsive depending on the sign of the charge. Charged particles are ubiquitous in space and can be found in the form of cosmic rays, solar wind, and plasma. The study of charged particles and their interactions with electromagnetic fields is crucial for understanding phenomena such as auroras, radiation belts, and space weather. In addition, the manipulation of charged particles is essential for many space technologies, including electric propulsion, ion thrusters, and plasma engines.
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