Why Are Comets Important?

Answer

Comets are important because one striking a planet could possibly cause huge changes. Many people think the extinction of the dinosaurs was caused by a huge comet. They also contain extremely rare elements, which may give scientists some clue about how our solar system was developed.
Q&A Related to "Why Are Comets Important"
It's important because if we don't know if it gets close to the sun, then we don't know if we can see it or not. See, when a comet gets close to the sun, we can see it. Therefore,
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Comets are important to study as they are ancient, unchanged since the beginning of the solar system
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Since comets have spent most of their existence in the outer regions of the solar system, they are essentially ``cosmic refrigerators.'' They are so cold that they have been able
http://www.pbs.org/wgbh/nova/spacewatch/weaver.htm...
We think that comets may well have been important in the evolution of the earth, for example in delivering the water which eventually became our oceans.For that reason, we want to
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