UCSB Science Line
Sponge Spicules Nerve Cells Galaxy Abalone Shell Nickel Succinate X-ray Lens Lupine
UCSB Science Line
Home
How it Works
Ask a Question
Search Topics
Webcasts
Our Scientists
Science Links
Contact Information
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.



Click Here to return to the search form.

University of California, Santa Barbara Materials Research Laboratory National Science Foundation
This program is co-sponsored by the National Science Foundation and UCSB School-University Partnerships
Copyright © 2017 The Regents of the University of California,
All Rights Reserved.
UCSB Terms of Use