Asteroids and Comets - Library Binding

by Charis Mather (Author)

Welcome, Agent 359. This file is full of top-secret information about asteroids and comets. Learn about what is inside these large space lumps, where they come from, and different asteroids and comets throughout history. Then, discover what we are learning about them now. What will you do with your new knowledge? Good luck and remember these are top secret space files!