UCSB Science Line
Sponge Spicules Nerve Cells Galaxy Abalone Shell Nickel Succinate X-ray Lens Lupine
UCSB Science Line
How it Works
Ask a Question
Search Topics
Our Scientists
Science Links
Contact Information
How many asteroids are in the Solar System?
Question Date: 2015-05-15
Answer 1:

To be honest, I don't know if anyone has a concrete answer. I've heard some estimates, but there are too many of them to actually count each one. I believe the asteroid belt between Mars and Jupiter has more than 100,000 asteroids. And there's much more outside our solar system.

Answer 2:

I don't think it's possible to answer that, because the smaller asteroids are, the harder they are to see, and the more common they are. Do grains of dust count as asteroids? If they do, then the number is unimaginably huge.

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 © 2020 The Regents of the University of California,
All Rights Reserved.
UCSB Terms of Use