UNIVERSE
ASTEROIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In the Kuiper Belt & Oort Cloud beyond Neptune’s orbit
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In the Asteroid Belt between Mars and Jupiter
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Near the Sun
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Earth’s atmosphere
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Detailed explanation-1: -Both the Oort Cloud and the Kuiper Belt are thought to be sources of comets.
Detailed explanation-2: -Researchers have found that some near-Earth asteroids are actually burned-out comets, and most of them would have started out in the Kuiper Belt. (The other source of comets is the Oort Cloud, where most long-period comets on highly tilted orbits originate.)
Detailed explanation-3: -The short-period comets are thought to originate in the Kuiper Belt, an area outside Neptune’s orbit (from about 30 to 50 AU) that has many icy comet-like objects. The long-period comets tend to have orbits that are randomly oriented, and not necessarily anywhere near the ecliptic.
Detailed explanation-4: -Home of Comets Because the orbits of long-period comets are so extremely long, scientists suspect that the Oort Cloud is the source of most of those comets.