A Java applet that simulates gravitating masses. Features a working model with motions and sizes of 70 planets and moons to scale. www.cuug.ab.ca/~kmcclary
Information about planetary astronomy and space exploration and habitat. Online chat, message boards, and related links. Sells replicas and toys. www.skyscopes.com
Comprehensive multimedia tour with statistical data, detailed information, pictures and videos. Also includes educational resources. www.solarviews.com/eng/homepage.htm
Contains an outline of the formation and evolution of planets, comets, asteroids, and of their features and exploration. stardate.org/resources/ssguide
Overview with historical background and basic astronomy concepts, details about planets, satellites, asteroids, comets and meteors. csep10.phys.utk.edu/astr161/lect
Provides detailed information related to known bodies in orbit around the Sun. Ephemerides, physical parameters, Earth close-approaches, observer tools. ssd.jpl.nasa.gov
Online software that generates views of the bodies of our planetary system at any date from any artificial or natural point of observation. space.jpl.nasa.gov
Features planetary imagery, research, GIS, mapping, and image processing software. The site provides information about the group and about the Solar System. astrogeology.usgs.gov
The Solar System Exploration Home Page is part of NASA's Office of Space Science and describes NASA's program to explore the solar system. solarsystem.nasa.gov/index.cfm
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