Comet: Visitors From Space
The nomads of the solar system, comets swing through the planets on wild eccentric orbits. Comets plunge into the sun, others swing `round it like Halley`s Comet which completes a vast elliptical orbit once every 76 years. Comets are from the Kuiper Belt and the Oort Cloud, a great halo of debris that envelops the solar system and stretches a third of the way to the nearest star.
SCIENCE, TECHNOLOGY
Sixth Grade-Twelfth Grade
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