- #1
Yaymy
- 1
- 0
I was watching How the Universe Works, and they mentioned that planets were formed by dust particles that came together to form rocks, and that those rocks collided with one another and became larger and larger eventually forming planets. My question is why did the asteroids in the asteroid belt never collide to form planets as well? Does the answer to this question also relate to why some planets have rings? Why haven't the rings collided together to form a rocky/icy moon?