Exciting
Only logged in members can reply and interact with the post.
Join SimilarWorlds for FREE »

Do you know the difference between a Comet and an Asteroid?

The main difference between asteroids and comets is their composition, what they are made of. Asteroids are made up of metals and rocky material, while comets are made up of ice, dust and rocky material. ...
Asteroids formed much closer to the Sun, where it was too warm for ices to remain solid.
This page is a permanent link to the reply below and its nested replies. See all post replies »
Northwest · M
Commonly, the plural of ice is ice, but it seems as if CalTech's public information likes to used the countable form of ice, and its plural is ices.