This educational website provides animations of black holes, galaxies, and quasars. It uses either mpeg or quick time. Both of these formats are available in high and low resolution formats. There are links to podcasts,...

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,...

This collection of lecture notes discusses the fundamentals of astronomy. The lecture notes review the topics of celestial mechanics, light, matter, planets, telescopes, the sun, stellar astronomy, stellar evolution,...

This collection of animations introduces students to planetary motions, gravitational effects, and the scale of astronomical distances. Students can view visualizations of Earth's changing seasons, circumpolar motion,...