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Why is Pluto so small?
Question Date: 2016-01-10
Answer 1:

Well Pluto is ONE example of trillions!!!! of icy bodies in the KUIPER COMET belt. This is a region from beyond the orbit of Neptune extending to about 100 Astronomic Units from the Sun of a belt of comets. Pluto is just one of the bigger of these objects.

Answer 2:

I don't think there is an answer that. The matter that made Pluto didn't make it large. Why there aren't any larger comet-like planets in the solar system might be a good question, though.

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