comets

Provides information about comets, including what comets are, where they come from, and more.

Mad scientist Dr. Alowishus Cobalt has used a tractor beam to alter the course of a comet and aim it at Earth, and it is up to the Kid Squad--Pi, Athena, Gadget, Tank, and their trusty cat D-Day to save the world from destruction.

Provides information on comets and asteroids, including their relationship to and effects on the earth.

An illustrated introduction to comets and asteroids.

Text and illustrations provide an introduction to comets.

Describes how scientists sent a spacecraft into space to learn more about comets.

Provides an up-close look at some of the more elusive objects in space, including comets, asteroids, and meteors.

Explains the wonders of space, comets, asteroids, extraterrestrial objects, and meteors.

Provides an up-close look at some of the more elusive objects in space, including comets, asteroids, and meteors.