This interactive multimedia feature introduces students to asteroids. Topics include what they are, where they occur, and the probability that a large asteroid might strike the Earth. There is a discussion of Near-Earth...

This radio broadcast discusses the renewed interest among space scientists in studying asteroids. Once disdained as uninteresting, asteriods are now considered to represent pristine material, essentially unchanged since...

This resource covers general features of asteroids; the asteroid belt; Kirkwood gaps; the spacecraft Galileo flying by the asteroid Gaspra; the asteroid Ida and its moon Dactyl; the spin of the asteroid Toutatis; and...

This unit introduces students to some general concepts of astronomy. Topics include geocentric versus heliocentric theories of the solar system and how they explain the sun's movements, sidereal days versus solar days,...

This website provides materials for a complete introductory astronomy course. Under the lecture heading, students and teachers are provided with pictures, cartoons, and textual information on topics like: matter,...