Nucleus

In space and astronautical engineering, the nucleus refers to the central part of a comet, which is composed of ice, dust, and small rocky particles. As a comet approaches the sun, the heat causes the ice in the nucleus to vaporize, creating a glowing coma and tail. The study of comets and their nuclei provides valuable information about the early solar system and the formation of planets. Scientists use spacecraft to study comets up close and analyze the composition of their nuclei.
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