Question

Some scientists believe that comets originate from the...​

Answer 1

In fact, if the estimated total mass of all asteroids was gathered into a single object, this object would be less than 1,500 kilometers across, less than half the diameter of our Moon. Kirkwood gaps: If you plot the radius of the orbits of the asteroids you do not get a smooth `bell-curve' shape.

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Answer 2

Scientists believe that comets are the debris left from the solar nebula which condensed to form the Sun and planets in our solar system. Most comets are thought to originate in a huge cloud called the Oort Cloud. ... Comets follow a regular orbit around the Sun.

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