Seven Wonders of Asteroids, Comets, and MeteorsBook - 2011
"Have you ever wondered where comets come from? How craters formed on planets and moons? What causes meteor showers?"--P.  of cover.
Publisher: Minneapolis : Twenty-First Century Books, 
Copyright Date: ©2011
Characteristics: 80 pages : color illustrations, maps ; 26 cm
Alternative Title: Asteroids, comets, and meteors