Title: Doomsday rocks from space
Description: "Discusses comets, asteroids, and meteors, including how and where they are formed in space, what scientists are doing to study and track them, and what danger these doomsday rocks are to Earth"--Provided by publisher.
Subjects: Catastrophes (Geology), Asteroids, Juvenile literature, Orbits, Geology, juvenile literature, Geology, Solar system, Solar system, juvenile literature