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What’s the difference between a comet and an asteroid?

What’s the difference between a comet and an asteroid?

Popular Science - By Mary Beth Griggs

They both orbit the sun, but they're very different. In our solar system, there are a lot of things that circle, or orbit, around our Sun. Earth orbits the Sun about every 365 days. Seven other planets also orbit the Sun, along with their moons (which orbit planets) and lots of other items, …

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