See also:

• Science: Astronomy: Extrasolar Planets  (39)
• Science: Astronomy: Software  (157)
• Science: Physics: Plasma: Space Plasmas  (23)
• Science: Technology: Space: Missions  (482)

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	Danish  (4)   German  (132)   Italian  (17)   Japanese  (43)   Norwegian  (8)   Polish  (15)   Romanian  (5)   Russian  (9)   Spanish  (217)

• The Nine Planets   - Overview, sections dedicated to each planet and the smaller bodies - with data, information and some pictures - glossary and appendices.
• Views of the Solar System   - Multimedia tour with statistical data, detailed information, pictures and videos. Also includes educational resources.

• Astromaterials Curation - Features Moon rocks, Mars meteorites, and space exposed materials at NASA's curation office.
• Astronomy 161: The Solar System - Overview with historical background and basic astronomy concepts, details about planets, satellites, asteroids, comets and meteors.
• Astronomy Today - Solar System - Fairly detailed information about our sun and its planets.
• BBC Space: Solar System - 3D tour including videos with audio and text information on the Sun and the bodies orbiting around it. (Shockwave and Realplayer required)
• Computing Planetary Positions - A detailed online tutorial on how to compute planetary locations using math formulas.
• Endless Boundaries - Information on the Sun, planets and moons.
• Exploring the Planets - Sponsored by the National Air and Space Museum, contains many interesting facts about the planets, pictures, comparisons and a section dedicated to spacecraft.
• Free Software for Planetary Science - Image processing browers for Mariner 6, 7, 9, 10, Venera 15/16, and Viking Orbiter.
• Gazetteer of Planetary Nomenclature - Protocols for naming planetary features, by the Working Group for Planetary System Nomenclature of the International Astronomical Union.
• Northeast Regional Planetary Data Center - Includes list of available image collections and how to obtain the data at the facility (no images are online).
• Nova Celestia - Provides overview and original illustrations of elements.
• Orrery: Solar System Simulator - A Java applet that simulates gravitating masses. Features a working model with motions and sizes of 70 planets and moons to scale.
• Orrery: The Solar System in Action - A concise tour containing numerous educational resources, and support for Spacetech's Orrery application.
• A Planet Pursuit - Pictures, facts and general information on the nine planets.
• Planetary Cartography and Graphics by Ralph Aeschliman - Planetary maps and graphics of Mars, the Moon and Venus.
• Planetary Fact Sheet - Table of essential measurements and facts regarding the nine planets with links to highly detailed summaries.
• Planetary Science Institute - Research and educational institute with projects to study planets, asteroids, and comets.
• The Planetary Society: Our Solar System - Concise information about all planets, comets and asteroids.
• Rotation of Sun and Planets - The rotation period of a large body circled by one or more satellites can be calculated theoretically.
• SkyScopes - Information about planetary astronomy and space exploration and habitat. Online chat, message boards, and related links. Sells replicas and toys.
• Smiley's Planet - Explore the solar system's planets. Includes pictures, descriptions, statistical information and a special section on the latest voyage to Mars.
• The Solar Space Station - Facts, descriptions and pictures, with sections about the Sun, the planets and meteors and asteroids.
• The Solar System - History of and basic facts about major solar system bodies.
• Solar System Dynamics - Web-based resources accompanying the book Solar System Dynamics, by Carl D. Murray and Stanley F. Dermott.
• Solar System Dynamics - Provides detailed information related to known bodies in orbit around the Sun. Ephemerides, physical parameters, Earth close-approaches, observer tools.
• Solar System Exploration Home Page - 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.
• Solar System Simulator - Online software that generates views of the bodies of our planetary system at any date from any artificial or natural point of observation.
• Solar System Simulator - Shows the position of Venus, Earth and Mars at any date from 1900-2100.
• Stardate Online: Guide to the Solar System - Contains an outline of the formation and evolution of planets, comets, asteroids, and of their features and exploration.
• USGS Astrogeology Research Program - Features planetary imagery, research, GIS, mapping, and image processing software. The site provides information about the group and about the Solar System.
• Welcome to the Planets - Select images from NASA's planetary exploration program.
• Windows to the Universe - Aimed at portraying Earth and Space Sciences in a fun way. Includes information about space weather, global space physics and a real time movie of current solar activity.