Describes in simple terms the meteors, comets, and asteroids that are part of our solar system and discusses the various theories concerning their origin and th

From earliest times, humans have wondered about the sky above them and have studied all visible objects. People began to identify differences between stars and

Explores how comets, meteors, and asteroids move through our solar system, and explains the ingredients that make a comet's tail and other topics

In 1993, the U.S. Department of Defense declassified information dealing with frequent explosions in the upper atmosphere caused by meteoric impact. It is estim

"An introduction to asteroids, comets, and meteors, including what they are made of, where they are, and how they interact with other bodies of the solar system