comets

Explores the relationship between the Sun and the smaller celestial bodies including asteroids, meteorites, and comets, and examines their role in the solar system.

Answers a variety of questions about comets including what they are, where they come from, and where they go using cartoons and photographs to illustrate ideas.

Describes the discovery of Halley's comet and the research carried out around the world when the comet returned in 1986.

Describes the origin, composition, orbit, and speed of different types of comets.

Discusses the characteristics of comets, meteors, and asteroids, their relationship to and effects on the earth, and what they reveal about the history of the universe.

Describes dwarf planets and other celestial bodies within the solar system, including asteroids, comets, and meteors, and discusses the nature of the solar system and how and why satellites move in orbit.

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

Simple answers to children's questions about comets and meteors. What are they? Where do they come from? Where do they go? Why do they glow?.

Presents an investigation of asteroids and comets, discussing ancient beliefs about the appearance of comets, their demystification with the emergence of modern astronomy, how they formed, and their different types and composition, and looking at the possibilities for mining asteroids, as well as what happens when they hit Earth.