UNIVERSE
METEORITES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a cluster of asteroids
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a swarm of comets far from the sun
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the cloud that a meteoroid produces in the atmosphere
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the same as the coma of a comet
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Detailed explanation-1: -The Oort Cloud is a spherical layer of icy objects surrounding our Sun, a star, and likely occupies space at a distance between about 2, 000 and 100, 000 astronomical units (AU) from the Sun.
Detailed explanation-2: -The Oort cloud has never been observed but is thought to be a spherical distribution of icy objects like comets orbiting our Sun at distances between 3000 and 100, 000 AU.
Detailed explanation-3: -For example, there are two main varieties of short-period comet: Jupiter-family comets and Halley-family comets. Halley-family comets, named for their prototype (Halley’s Comet) are unusual in that although they are short in period, they are believed to have originated from the Oort cloud.
Detailed explanation-4: -Oort Cloud. The Oort cloud is an immense spherical cloud surrounding the planetary system and extending approximately 3 light years, about 30 trillion kilometers from the Sun. This vast distance is considered the edge of the Sun’s orb of physical, gravitational, or dynamical influence.
Detailed explanation-5: -Long-period comets are thought to originate in the Oort cloud, a spherical cloud of icy bodies extending from outside the Kuiper belt to halfway to the nearest star. Long-period comets are set in motion towards the Sun by gravitational perturbations from passing stars and the galactic tide.