Question

Why would a comet like Halley's Comet not be able to live as long as other...

Why would a comet like Halley's Comet not be able to live as long as other objects in our solar system? ( Please type answer and put in your own words, thanks)

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Answer #1

Comet have typical lifetime is equal to 1/2 million years. It this period it is dynamical and after it it becomes dead. When comet travel through space they leaves a large amount of debris behind them which is loss of mass. In such a way they cann't sustained for long time. Comets move under the gravity of planet, hence they can collide with planet and becomes dead. Some of comets are injected to Sun.

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