SOLAR SYSTEM

Detailed explanation-1: -Short-period comets (those which take less than 200 years to complete an orbit around the Sun) originate from the Kuiper Belt . Danish astronomer Jan Oort proposed that comets reside in a huge cloud at the outer reaches of the solar system, far beyond the orbit of Pluto. This has come to be known as the Oort Cloud.

Detailed explanation-2: -Home of Long-Period Comets There may be hundreds of billions, even trillions, of icy bodies in the Oort Cloud. Now and then, something disturbs the orbit of one of these icy worlds, and it begins a long fall toward our Sun.

Detailed explanation-3: -It is thought that most comets originate in a vast cloud of ice and dust that surrounds the solar system. The Oort Cloud, as it is called, extends several thousand times farther from the Sun than Pluto, the outermost planet.

Detailed explanation-4: -Definition: The Oort Cloud is a theoretical spherical cloud of predominantly icy planetesimals that is believed to surround the sun at a distance of up to around 100, 000 AU (2 ly).