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Science - Astronomy - Solar System
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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.

SkyScopes - Information about planetary astronomy and space exploration and habitat. Online chat, message boards, and related links. Sells replicas and toys.

Orrery: The Solar System in Action - A concise tour containing numerous educational resources, and support for Spacetech's Orrery application.

Gazetteer of Planetary Nomenclature - Protocols for naming planetary features, by the Working Group for Planetary System Nomenclature of the International Astronomical Union.

Endless Boundaries - Information on the Sun, planets and moons.

Solar System Discoveries by JJ Kavelaars - References to minor planets and moons of planets that were discovered by JJ Kavelaars.

Our Solar System - General information and physical parameters about planets, moons, asteroids and comets. Includes some of the major planetary missions and info on the Kuiper Belt and Oort Cloud.

The Solar Space Station - Facts, descriptions and pictures, with sections about the Sun, the planets and meteors and asteroids.

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.

Planets, Moons and Stars - Created by students for the Think Quest Junior competition, contains elementary information.

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.

Views of the Solar System - Comprehensive multimedia tour with statistical data, detailed information, pictures and videos. Also includes educational resources.

Solar System Dynamics - Web-based resources accompanying the book Solar System Dynamics, by Carl D. Murray and Stanley F. Dermott.

A Planet Pursuit - Pictures, facts and general information on the nine planets.

Solar System Simulator - Shows the position of Venus, Earth and Mars at any date from 1900-2100.

Virtual Solar System - Images, facts and quizzes about the nine planets. Also includes a scale model.

BBCi 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)

The Nine Planets - Overview, sections dedicated to each planet and the smaller bodies - with data, information and some pictures - glossary and appendices.

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.

Astronomy 161: The Solar System - Overview with historical background and basic astronomy concepts, details about planets, satellites, asteroids, comets and meteors.

Solar System Dynamics - Provides detailed information related to known bodies in orbit around the Sun. Ephemerides, physical parameters, Earth close-approaches, observer tools.

Welcome to the Planets - Select images from NASA's planetary exploration program.

Our Solar System - Basic information and low resolution pictures of the bodies of our planetary system.

Aniket World - Personal page reporting basic features of the planets and some links.

The Planets - Multimedia presentation. (Requires plug-in Flash)

The Solar System in Pictures - Quizzes and images about all the bodies of our planetary system.

Solar System Tour - Basic features of the Sun and the nine planets.

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 Worksheets - Math and logic problems, word searches and vocabulary worksheets.

The Lunar Database - Basic information about some of the biggest moons.

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.

Planet Guide to the Solar System - Guide to our planetary system with pictures and descriptions of all planets, including statistical data.

The Planetary Society: Solar System Guide - Current and concise information about all planets, major satellites, comets and asteroids.

Planetary Fact Sheet - Table of essential measurements and facts regarding the nine planets with links to highly detailed summaries.

Northeast Regional Planetary Data Center - Includes list of available image collections and how to obtain the data at the facility (no images are online).

Astronomy Today - Solar System - Fairly detailed information about our sun and its planets.

The Solar System - History of and basic facts about major solar system bodies.

VR Solar System - Interactive virtual reality model of the solar system. Requires installation of VR web viewer.

The Solar System - Detailed guide to the sun and planetary system, asteroids, comets, meteor hits on Earth and the other planets.

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.

SpaceQuest: Solar System Data Homepage - Basic information about the sun and nine planets.

About Atmosphere - Summary information regarding the atmospheres of each planet in our solar system.

Rotation of Sun and Planets - The rotation period of a large body circled by one or more satellites can be calculated theoretically.

Planetary Science Institute - Research and educational institute with projects to study planets, asteroids, and comets.

Comets and Meteor Showers - Includes news, information, professional and amateur observations as well as historical research. Compiled by Gary W. Kronk.

Christophe Dumas, Planetary Astronomy - Near-infrared spectroscopy, and high-angular resolution imaging of small planetary bodies and asteroidal satellites.

NearEarth.net - Information on meteor showers, comets, specialized optics, and asteroids.

The Physics of: Asteroids, Comets and Meteoroids - Physics of asteroids, comets and meteoroids. Application with Newton's and Kepler's Laws, kinetic and potential energy.

Peter G. Brown - Research in fireballs, meteorite falls, and near Earth objects.

The Spacewatch Project - The primary goal of Spacewatch is the study of statistics of comets and asteroids in order to investigate the collisional evolution of the solar system.

Minor Planet Center - International clearing house for observations of asteroids and comets.

Minor Planet Mailing List - Forum for discussion of asteroids and comets.

3D Orbit Visualization - A Java based tool that lets you explore the orbit of any known asteroid or comet.

The Nine Planets: Small Bodies in the Solar System - Overview of asteroids, comets, meteors. Images, data, links.

Welcome to the Planets: Small Bodies - Asteroids Ida and Dactyl, Comets Shoemaker-Levy 9 and Halley, representative meteorites.

Planetary Data System: Small Bodies Node - Data concerning asteroids and comets, in a standard format for use primarily by astronomical observers and mission planners, as well as educators and students.

Spacelink: Small Bodies - Instructional materials from NASA on Asteroids, Comets, and Meteors.

Chiron Information and Documentation - Interesting object with dual status as both asteroid and comet.

NASA Planetary Photojournal: Asteroid and Comets - Selected NASA images.

USGS Astrogeology: Other Objects - Official names of features on asteroids as approved by the International Astronomical Union. Data and images for selected asteroids and comets.

STARDUST - NASA space mission to visit an asteroid and a comet.

Asteroids and Comets - Data from across NASA, compiled at the National Space Science Data Center.

Asteroid/Comet Connection - A digest of news related to asteroids, comets, and meteors. Monitors changes in impact risk calculations, Includes links to original sources of information.

The Uppsala-ESO Survey of Asteroids and Comets (UESAC) - Asteroid measurements from the European Southern Observatory in Chile and the Anglo-Australian Observatory

Klet Observatory - Observatory in the Czech Republic used for study of asteroids, comets, and in particular, near Earth objects.

Crni Vrh Observatory - Asteroid and comet observation at Crni Vrh Observatory, Slovenia.

NOVA Online: Doomsday Asteroid - Transcript of the television broadcast, kitchen comet activity, general information on comets.

Aerospaceguide.net: Near Earth Asteroid - Concise descriptions of Asteroids, Comets, and near Earth objects.

Margate Public Library: Asteroids - Directory grouped by Asteroids, Asteroid Belt, Comets, Kuiper Belt, Meteors.

Startdate Online: Leftovers - Fact sheets on asteroids and comets, index to radio broadcasts on related topics. From the McDonald Observatory.

Sormano Astronomical Observatory - Asteroid, comet, and meteor images, computations of close approaches, history articles.

Asteroids, Comets, and Meteorites: Their Intimate Relation with Life on Earth - A curriculum prepared by the Yale-New Haven Teachers Institute.

Dr. Odenwald's Ask the Astronomer page: Asteroids, Meteors and Comets - Extensive FAQ.

Nine Planets: Asteroids - Overview of current scientific knowledge of asteroids, from SEDS, the Students for Exploration and Development of Space.

Bill Bottke's Asteroid Research - Collisions, tidal disruption, dynamics, planetary impacts, crater chains and doublet craters.

Orrery: Asteroids - Basic information about asteroids, history of asteroid discovery, Bode's Law.

Windows to the Universe: Asteroids - General features, data, some pictures, news.

Asteroid Observing Services from Lowell Observatory - Tools to help observers select targets and plan observations. Also, orbital elements, reference star catalog data and software, link to Lowell Observatory Near Earth Object Search (LONEOS).

AstDys, Asteroids - Dynamic Site - Indexed, searchable database of asteroid data.

European Asteroid Research Node - Association of European research groups active in asteroid research. Links to member sites and resources useful for asteroid research.

Asteroid Radar Research - NASA JPL asteroid research using radar. Introduction, scientific activity, asteroid images.

The Asteroid World - Categorization of asteroids by their orbits and physical properties.

Views of the Solar System: Asteroid Introduction - Background information, details on selected asteroids, image gallery.

Impacts Into Asteroids - Theoretical studies of impacts of one asteroid into another, and tsunami effects of an asteroid impact on Earth.

Design Cast Studios - Asteroid Model Series - Scientifically accurate scale models of asteroids.

NASA JPL Solar System Visualization: Asteroid Movie Clips - A collection of animations produced by NASA for various projects.

Minor Planet Groups and Families - Listing and description of dynamical groups and physical families of asteroids.

Exploring The Planets: Asteroids - History, location in the Solar System, near Earth asteroids, physical appearance, space missions. From the National Air and Space Museum.

UAI Minor Planets Section - Italian organization of minor planet observers. Histograms and scatter plots of asteroid orbital elements. Ephemeridies, opposition dates, conjunctions with Messier objects, shareware applications.

Association of Lunar and Planetary Observers: Minor Planets Section - Magnitude alert project, finder charts, visual observing of minor planets.

Minor Planet Observer - Lightcurve collaboration, software, Palmer Divide Observatory.

Astronomy Related Rrograms - By Jure Skvare. Downloads and web based services useful to asteroid observers. Fitsblink, asteroid server, fitsjd, fits2pg, fitsfrompg, asteroid identifier, residual calculator.

Asteroid Watch - Reading list of books, news.

Introduction to Asteroids - Covers history, asteroid composition, Earth collisions.

Asteroids - Chart showing relative sizes, distance from the sun, inclination/eccentricity, shape, and color. Other charts showing position in the solar system. Summary data.

Solar System Exploration: Asteroids - Basic description, overview of asteroid science.

Asteroids - Several basic questions and detailed answers.

How Stuff Works: Comet - Informative illustrated explanation of what comets are, what they are made of, where they come from and how to observe them.

Small Comets - The original discovery and latest news about a new class of interplanetary bodies.

Comet's Long Tail Tickles Ulysses - The solar polar orbit satellite observed tail of comet Hyakutake by means of magnetic fields and particle count anomalies. Article from Science News.

Views of the Solar System: Comets - Basic features, data, discoveries, images and sections with specific information on selected comets.

The Solar System in Actions: Comets - Basic features and some more information on selected comets.

Windows to the Universe: Comets - General information and data, pictures, details on the most interesting ones.

Comet Information and the International Comet Quarterly - Information regarding news, observations, orbital data, designations and names, and links regarding comets and related topics.

Deep Space 1 - NASA space probe that explored comet Borrelly.

British Astronomical Association Comet Section - News, recent observations, observing information and advice.

Exploring The Planets: Comets - History, orbits, composition, ways comets are studied, relation to meteor showers. Comets Halley, Shoemaker-Levy 9. From the National Air and Space Museum.

Comet comet comet - Overview of comets, as described by a professional comet researcher.

Comet Lee - Provides an analysis about this object and its specific lack of periodicity.

Comet Lee - Offers two images that present the changes that occurred in a small amount of time, especially those regarding the orientation of the tail.

ESO Homepage: Comet Hale-Bopp - Includes news, updates and pictures related to this object.

Information for the Non-Astronomer - Includes pictures with the object and details about the discovery, its size and its brightness.

UH Institute for Astronomy - Includes news and images obtained by University of Hawaii astronomers.

SpaceViews: Comet Hale Bopp - Information, articles, observing tips and lists of links about Comet Hale-Bopp.

Press Information Sheet - Includes the most common questions related to this comet. Offers details about its discovery, its evolution and its brightness.

First International Conference on Comet Hale-Bopp - Includes details about this conference, hotel information and a list of planned activities.

Russell Sipe - Comet Hale-Bopp - Includes a preface, facts about its discovery, a chronology of the events as well as images organized in five volumes.

Comet Hyakutake - NASA homepage related to C/1996 B2. Offers an overview, details about its discovery as well as an image archive.

Comet Hyakutake - Includes an image gallery with pictures taken in March and April 1996.

LASCO Home Page - Includes brief facts, images and movies related to the comet.

ESO - Comet Hyakutake - Offers news about the tail of the comet as well as a news archive and facts related to x-ray radiation.

Great Lakes Great Fire Meteorite - New evidence links the simultaneous fires in Chicago, Peshtigo, and the entire Central portion of Michigan (from Lake Michigan to Lake Huron) to a meteorite fall.

Sonic Booms - Los Alamos National Laboratory researchers are using a network of microphones to track meteors as they burst into Earth's atmosphere.

Meteor Observing Calendar - A concise listing of all meteor showers that can be seen throughout the year.

Meteor Shower Observing - Main showers dates.

Observing Meteor Showers - A month-by-month guide with basic tips.

Astronomy 161: Meteors and Meteor Showers - Descriptions and explanations of what causes meteors, as well as the history of its study.

The Solar System in Action: Meteoroids and Meteors - What meteors really are and when to see them.

Views of the Solar System: Meteoroids and Meteorites - General information, data, pictures. Also features educator's guides to micrometeorites, impact craters and space debris.

Jupiter Scientific: Leonids Meteor Shower - What to expect, how to observe and history of the shower.

Jupiter Scientific: The Perseid Meteors - Information, observation and history. Updated yearly in July.

Sky and Telescope: Observing Meteors - News, articles.

Leonid Meteor Storm - Information on the Leonid meteor storms which are associated with the appearance of the comet Tempel-Tuttle.

The Leonid Meteor Storm - An overview of the Leonid Meteor Storm providing information on past and future storms. This site will be updated in real time for the 1999 and 2000 Leonid events.

MeteorObs - A forum for meteor observers of all levels. Mailing list, mailing list archives, FAQ, how to view meteor showers.

Andrei Yu. Ol'khovatov Home Page directory - Research on the 1908 Tunguska event, electrophonic sounds, meteor phenomena.

International Meteor Organization - The leading amateur meteor organization in the world. Information about observing techniques, meteor showers, and the meteor community. Includes links to other web pages on meteor astronomy.

The American Meteor Society - Has as a goal to encourage and support amateur and professional research. The site also includes sections on meteor showers, fireball sightings, visual and radio observation and spectroscopy.

Astronomical Society: Victoria Meteor Section and Frankston Meteor Group - Activities, reports, newsletters.

MBK Team home page - Group of meteor observers, also with interest in comets, Sun, aurora and eclipse observations.

North American Meteor Network - An amateur organization covering observation and providing information about sporadic and meteor activity.

Nippon Meteor Society - Society information, reports, information on meteor streams, links to research and observation sites.

High Speed Meteor Scatter Operation - Many of the most important papers and technical information on high speed CW meteor scatter operation.

Jordan Astronomica Society: Observing Meteors by Radio - How it works, results, references and links.

OH5IY - Observations with radio and meteor scatter software. Technical information, terminology, data, downloads area.

Radio Meteor Observation - Observational data of meteor streams by Chigusa High School (Aichi, Japan) and Misato Observatory (Wakayama, Japan).

FM Radio Detection of Meteors - Gives details of the construction and operation of an amateur observatory for radio meteor studies. The 1998 Leonid and Geminid meteor showers were observed using the forward scatter of the signal from an FM radio station, and these data are presented.

Radio Design Services - Provides information on detecting meteors by radio. Includes descriptions of the principles and equipment used, and results with related links.

Meteor and Colorgramme - Software for radio meteor observation.

Radio Meteor Observing Bulletin - Observation Summaries, news, observer activities.

Radio Meteor Observation Live Data - Real time graphical data from stations using the software HROFFT.

Asteroids and Comets - Basic information about near Earth asteroids and the hazard they pose to Earth. Asteroid origins, potentially hazardous asteroids, Earth crossing asteroids, Torino impact scale.

NEO Information Centre - Virtual exhibition and online activities on the nature of NEOs and the hazard they pose, what efforts are being made to detect NEOs and avert collisions.

Earth and Asteroids - Short discussion of Yucatan and Tunguska impact events and current asteroid search programs.

Earth Coorbital Asteroid 2002 AA29 - An asteroid that shares Earth's orbit. List of researchers, press release, detailed description of orbit, images and animations, links.

Earth Crossing Asteroids - Results from NASA sponsored research on the physical modeling of Earth crossing asteroids using radar and optical data. Images, animations, 3D models.

IAU / Near Earth Objects - Summary of research on near Earth objects, from the International Astronomical Union.

JPL Near-Earth Object Program - NASA NEO Program Office at JPL. Overview, press releases, FAQ, 3D orbit viewer. Research information and statistics, including risk calculations for possible collisions with Earth.

Near-Earth Asteroid 3753 Cruithne - Asteroid with an unusual orbit, locked to Earth's orbit. Orbit description with diagrams and animations, press release, meaning and pronunciation of "Cruithne."

Near-Earth Asteroid Tracking (NEAT) - NASA JPL program to search for near Earth asteroids. Statistics, press releases, FAQ, telescope information, searchable image archive.

NeoDys, Near Earth Objects - Dynamic Site - Searchable database of near Earth asteroids, risk calculations for possible collisions with Earth, orbit calculation software.

Planetary Society's Near Earth Objects Page - NEO overview, projects, details on selected objects, space missions, news, Gene Shoemaker grant fund.

Spaceguard Central Node - International organization concerned with near Earth objects. Background information on NEOs, technical information for researchers, "Tumbling Stone" newsletter.

Tricky Science of Predicting Asteroid Collisions - Christian Science Monitor article examining asteroid collision science.

The SpaceGuard UK Portal - Spaceguard UK is the national focus in the UK for studies into the threat posed to the Earth by collisions with asteroids and comets.

The LINEAR Program Home Page - NEO survey operated by MIT Lincoln Laboratory. Overview, statistics, history, skyplots, discoveries.

LONEOS, The Lowell Observatory Near-Earth Object Search - A system designed to find Earth-crossing asteroids and comets. Abstract, technical descriptions, staff, opportunities for collaboration.

Spaceguard Foundation e.V. - German organization promoting NEO research. News, links, organization aims, history, current activities.

Ondrejov NEO Program - Activities at Ondrejov Observatory, Czech Republic, for photometry and astrometry of NEOs. Project news, binary near Earth asteroids, people involved, lists of light curve parameters.

Arcetri Near Earth Object Precovery Program (ANEOPP) - A search for NEO images in existing photographic plate archives. Archives used, procedures, personnel involved, sample images.

DLR-Archenhold Near Earth Objects Precovery Survey (DANEOPS) - A project to search photographic plate archives for images of known NEOs. Procedures used, team members, images and measurements of successful precoveries.

Understanding the Distribution of Near Earth Objects. - Technical paper describing sources and orbital evolution of near Earth objects, and implications for NEO search efforts.

Asteroid Under Watch, But Probably Not Coming Our Way - Includes details about the risk of impact between asteroid 2002 NT7 and Earth.

Caveat Impactor - Provides a timeline and a history of events related to asteroid 2002 NT7 and explains the low chances of an impact with Earth.

Royal Astronomical Society of New Zealand - Facts about asteroid 2002 NT7 and details about a possible impact with Earth.

Asteroid Impact Countdown Clock - Provides the number of days left until a possible rendez-vous with asteroid 1997 XF11, as well as links to other resources dedicated to this subject.

1997 XF11 - Provides 3 black and white images that helped at the discovery of this object.

Asteroid On Collision Course With Earth - Short article examining how much danger Asteroid 2002 NT7 poses to the Earth.

NSSDC: Pluto - Contains pictures taken by Hubble, and links to other interesting pages regarding this planet.

The Solar System in Action: Pluto - Introduction to the last unexplored planet.

Constants and Equations: Pluto - The planet's vital statistics.

Royal Greenwich Observatory: Pluto - Brief introduction to the planet, including much of historical relevance.

Solar Views: Pluto - Complete guide regarding general and statistical data about this planet and Charon. Includes pictures and links to other related sites. By Rosanna Hamilton.

Max Pages: Pluto - General data regarding the position, structure and atmosphere.

Leicester University's Educational Guide to Space and Astronomy: Pluto - Summary data for Pluto and Charon. Includes pictures and links.

Pluto: Asteroid or Planet? - Looks at possible histories leading to its existence.

The Solar Space Station - Informative description for this planet with pictures, general data and some brief history.

Andromeda Observatory: Pluto - Simulation of the approach to the Plutonian system.

Windows to the Universe: Pluto - Offers a range of information classified in three graded levels.

Astronomy 161: Pluto - Information and images on many different topics.

Pluto - Paul McGehee provides links and facts dedicated to this planet, as well as data related to the orbit and gravity.

Marc W. Buie: Pluto - Links related to this planet and summary information about its history.

Pluto: Surface - Images from Hubble.

Welcome to the Planets: Pluto - Images from NASA's planetary exploration program.

The Nine Planets: Pluto - Guide with both general and statistical data.

Pluto, with its moon, Charon - Pluto finds itself at the center of an impassioned debate over its planetary status.

The Planet Pluto - Pictures, quizzes and information about the planet and Charon.

Pluto: the Accidental Planet - Its status: small planet or large asteroid? Includes facts related to its history. By John Shepler.

Uranus - Statistics, other information, and links, from Nine Planets website.

Uranus - NASA

Planet Uranus - From Dilip's Planet Corner.

ORRERY: Uranus - The mysterious planet Uranus.

Treasure Trove: Uranus - Good, basic introduction to this planet.

Uranus: Neptune's Twin - Accessible introduction with activities for younger children.

NSSDC Photo Gallery: Uranus - Images of Uranus and its satellites.

ROG: Uranus - Planet Uranus by the Royal Observatory Greenwich, England.

Uranus - Views of the Solar System, Calvin J. Hamilton.

The Planet Uranus - good detail on this planet.

Uranus - NASA's Windows to the Universe

A Guide to the Planets - Uranus - A guide to the planet: pictures, descriptions, statistical data, atmosphere contents, temperature, year/day length, diameter, and albedo.

Welcome to the Planets: Neptune - Planetary profile and vital statistics.

The Discovery of Neptune - Interesting history on why it wasn't discovered sooner by the British.

Royal Greenwich Observatory: Neptune - Basic overview.

Views of the Solar System: Neptune - Views, animations, general information and data of the planet.

Mathematical Discovery of Neptune - Another interesting history on how planets can be discovered mathematically.

John Couch Adams and Neptune - The History of its discovery.

Astronomy 161: Neptune - General features and some pictures.

The Nine Planets: Neptune - General information, some statistical data and links.

Windows to the Universe: Neptune - Overview of several aspects of the planet. Versions available for beginner, intermediate and advanced level users.

NSSDC Photo Gallery: Neptune - Select images of the planet, with brief captions.

Neptune114 - Its atmosphere, rings, moons, appearance, and links to related sites.

Neptune - Concise introduction to this cold and distant planet, with numerous resources.

The Nine Planets: Saturn - General information, some statistical data and links.

Views of the Solar System: Saturn - Views, animations, general information and data of the planet and its satellites.

The Solar System in Action: Saturn - General information about the planet and its moons presented in a popular language.

Saturn's Ring System - Pictures, animations, excerpts from scientific magazines and links.

The Saturnian Irregulars - Pictures, animations, technical information, news and IAU circulars about the irregular satellites.

The Planet Saturn - Pictures and quizzes about the planet, its moons and its ring system.

NSSDC Photo Gallery: Saturn - Selected pictures with brief descriptions and captions, mostly from Voyager 1 and 2.

Welcome to the Planets: Saturn - Images from NASA's planetary exploration program.

Windows to the Universe: Saturn - An overview of the planet and its moons including general information, data, pictures, news, historical and mythological background. Versions available for beginner, intermediate and advanced level users.

Ring Plane Crossings of 1995-1996 - News and pictures taken by several observatories during this event, with the rings seen edge-on from the Earth.

Saturn Viewer - Online software that generates diagrams in postscript files showing the relative position of Earth, Sun, Saturn and its rings and satellites.

Saturn Ring Plane Crossing Workshop - Program and abstracts from a workshop held at Wellesley, MA, on observations of the 1995-6 event.

Saturn Events - Links, resources and news relating to the planet.

Magnetic Field and Magnetosphere of Saturn - A brief article by C. T. Russel and J. G. Luhmann.

The Nine Planets: Jupiter - General information, some statistical data and links.

JPL: Comet Shoemaker-Levy 9 Collision - Reports, news, links and images taken from spacecraft and ground based observations.

Welcome to the Planets: Jupiter - Includes a planetary profile with statistics and pictures.

NSSDC: Comet Shoemaker-Levy 9 Collision - General information, reports and pictures of the event taken from many observatories.

The Solar System in Action: Jupiter - General information about the planet and its moons presented in a popular language.

Planetary Ring Node: Jupiter's Ring System - Information, animations, images and references.

Jupiter Viewer - Online software for line drawings of bodies in the Jovian System as seen from various observatories and spacecraft.

NSSDC Photo Gallery: Jupiter - Select images of the planet from various space probes.

Views of the Solar System: Jupiter - Views, animations, general information and data of the planet and its satellites.

Windows to the Universe: Jupiter - Overview of several aspects of the Jovian science. Versions available for beginner, intermediate and advanced level users.

Astronomy 161: The Planet Jupiter - General features and some pictures.

The Planet Jupiter - Pictures and quizzes about the planet and its moons.

Solar System Exploration: Jupiter - General features and data about the planet and its satellites.

Jupiter: The Giant Planet - Physical features, space probes, effects of comet impact, and web links (from World Book).

Discovery of the Galilean Satellites - Some excerpts from Galileo's manuscripts.

Jupiter Satellites Events - Times for eclipse, occultation, transit, and shadow events.

IJW Satellite Discipline - Organization promoting observation of Jupiter's satellites. The site includes a news section.

Satellites of Jupiter - Introductory information, focusing on discovery and naming.

Eleven New Moons for Jupiter - Report on the discovery of eleven more bodies in the planet's outer "irregular" satellite system.

PIRL: Galileo Images of Io - Many pictures from the Galileo Mission, taken between August 1999 and December 2001.

Ionian Web - Provides information, images, maps, scientific articles, links, and the latest news concerning Jupiter's volcanic moon.

The Nine Planets: Io - Overview with data, text, images, links.

LPI: Io - General features, pictures and a short bibliography.

The Physics of IO - Report including sections about tidal heating and orbital resonance, plasma torus, magnetic field, current flow and Jupiter's aurora.

Volcanism on Io - Report by Peter Grindrod.

SO2 Ice on Io - A short scientific article about the identification of Sulfur Dioxide ice on the satellite's surface.

Io's Atmosphere - History of the observations, structure and physical processes.

Volcanic Moon Io Wears Sulfur-Rich "Snow" in New NASA Images - Press release concerning Galileo images of the satellite from the 27th orbit.

Jupiter's Volcanic Moon Io: Strange Shapes in a Sizzling World - Press release concerning near-infrared images taken by Galileo during its 27th orbit.

Scientists Show Jovian Moon Io's Mantle is Similar to Earth - Press release from Washington University in St. Louis.

Galileo's Sharp New pictures of Io Detail Amazing Volcanism - Press release from the Universty of Arizona.

Solarviews.com: Io - Statistics, animations and annotated pictures.

Io During 1999 - Volcanic activity on Io during 1999 as seen from Earth.

Planetary Geology Group at ASU: Europa Images - A few high resolution pictures from late 1999 end early 2000.

A Science Strategy for the Exploration of Europa - A report by the Committee on Planetary and Lunar Exploration Space Studies Board Commission on Physical Sciences, Mathematics, and Applications on the future of Europa exploration.

The Nine Planets: Europa - Overview with data, text, images, links.

Galileo Project: Europa - Comprehensive list of data, information and resources.

VSC: Europa Info - Speculations on the possibility of life on the satellite.

Tectonic Processes on Europa - Article about tidal stresses, mechanical response, and Visible Features, published by Icarus.

Chaos on Europa - A long article about Chaos region, written for submission to Icarus.

Strike-slip Faults on Europa - Article about global shear patterns driven by tidal stress, written for submission to Icarus.

Rotation of Europa - Article about constraints from terminator and limb positions. Written for submission to Icarus.

Lithospheric Dilation on Europa - Article written for submission to Icarus.

Astypalaea Linea - An article about a San Andreas-sized strike-slip fault, written for submission to Icarus.

Galileo Project: Images - Europa - Collection of photographs from the NASA's Galileo Mission.

Solarviews.com: Europa - Statistics, animations and annotated pictures.

The Nine Planets: Ganymede - Overview with data, text, images, links.

Galileo Project: Images - Ganymede - Collection of photographs from the NASA's Galileo Mission.

Hubble Finds Ozone on Jupiter's Moon Ganymede - Press release from the Space Telescope Science Institute.

LPI: Ganymede - General features, pictures and a short bibliography.

Solarviews.com: Ganimede - Statistics, animations and annotated pictures.

Callisto - Overview, with text, images, and links.

Solarviews.com: Callisto - General information, data and pictures.

LPI: Callisto - Overview and images, a short bibliography.

Galileo Project: Images: Callisto - Collection of photographs from the NASA Galileo Mission.

Cassini Images of Himalia - A few NASA's spacecraft captured images, with a brief comment.

Solarviews.com: Himalia - Statistics and annotated pictures.

University of Florida Radio Observatory - Dedicated to the study of decametric radio emissions from the planet. Information, prediction tables and downloadable sounds.

The Jovian Decametric Radio Emission - Short article explaining how it was discovered and why it occurs.

University of Florida Planetary Radio Group - What they do and who they are.

Mars - at NASA/JPL. Includes Mars' planetary profile and vital statistics.

NSSDC Photo Gallery: Mars

Mars - From The Nine Planets multimedia tour of the solar system.

PDS Mars Explorer for the Armchair Astronaut - Welcome to the Planetary Data System's Mars Explorer! The Mars Explorer allows you to get an image map of any area on Mars at a variety of zoom factors, image sizes, and map projections. These images are created using data from NASA's Viking missions.

The Mars Academy - An educational collaborative project to study the problems involved in the design of a manned mission to the Red Planet.

Destination: MARS - Information, animations and a set of themes illustrating various facets of the red planet.

The Whole Mars Catalog - An online guide to Mars.

Haughton-Mars Project - NASA/Ames research project to explore Haughton Crater on Devon Island in the Canadian Arctic, a Mars analogue.

MarsNews.com - NewsWire for the New Frontier. A comprehensive news & information resource on Mars missions, technology, and the search for life on the red planet.

New Mars - A Journal of the Martian Frontier - a Journal of the Martian Frontier, offering news and perspectives.

The Mission To Mars - Collection of selected resources and information about the mission of man kind to explore the ever mysterious red planet.

View from the Mars Polar Lander - A java applet showing the horizon view from the site of the Mars Polar Lander. The user can set the time and date and observe the position of the sun and the earth from the landing site, along with other information.

Archives of Images and Tables for Mars Thermospheres - Recent model results that illustrate the thermal, compositional and dynamical responses of the upper atmospheres of Venus, Earth, and Mars to solar EUV-UV flux

NASA's Mars Topic Tracker - Educational resources for the planet Mars including facts, pictures of Mars, maps, Mars exploration missions, and educational materials.

Mars & Martian Chronicles Links - Contains links to informational Mars sites. Also contains informative links on Ray Bradbury's Martian Chronicles.

the Darian Defrost Calendar - An interactive space-time distortion that takes you to the 22nd century, in which Mars is fully terraformed.

Explore Mars - Educational site with historical information, missions details and an online database for more than 1400 of the named features on Mars.

Planet Mars - From Dilip's Planet Corner.

MSSS Mars Image Release Directory - From the Mars Orbiter Camera aboard Mars Global Surveyor.

Mars Links - Images, life on Mars, news, missions, terraforming, conferences, Mars paraphernalia, Mars fiction on line, nonfiction, societies, and the face.

marsdot.org - Mars News discussion site, powered by Slashcode.

Mars - Information on the Planet Mars

Red Colony.com - The Future of Mars Today - Learn about colonization and terraforming with the latest news, images, and chat.

Mars Explorer - General introductory information on Mars.

Mars - Views of the Solar System, Calvin J. Hamilton.

Mars - From ORRERY, the Solar System in Action.

Mars in the Mind of Earth - Bibliographies of Terran literature concerning the planet Mars.

Mars - NASA's Windows to the Universe.

Mars Engineering & Virtual Mars - Devoted to considering future colonisation of Mars. Technical coverage of calendar systems.

The Mars Web Ring - No unique content but links to over 100 Mars sites - many are listed in the ODP but many aren't. Some good, some bad.

Mariner 6 & 7 Image Browser - Salvaging information from early NASA missions stored on now-obsolete media.

Mars meteorite - The first picritic Martian shergottite meteorite discovered. Commercial site selling Meteorites.

Think Mars - The Business of Mars - Site lobbying for Mars exploration achieved by sensible commercial enterprise

Mars 2112, restaurant: - Promotional site for a Mars-themed Restaurant

Daily Martian Weather Report - Weather by the Mars Global Surveyor Radio Science Team.

NASA Goddard Institute: Time on Mars - Java applet showing "time" (sunside / nightside) at specified locations on Mars.

Red Frontier - Introductory materials, images and book reviews about Mars.

Mars the dry planet? - Overview of Mars with interesting personal perspectives, plus photos of unusual surface features

Home.MarsSociety.org - public Mars Society web-server available for Mars-related projects

The Mars Society - "To Explore and Settle a New World"

New Mars - A Journal of the Martian Frontier - a Journal of the Martian Frontier, offering news and perspectives.

Mars Arctic Research Station - proposed research base to be located on Haughton Crater, Devon Island, Nunavut, Canada

Mars Society Education Web

Mars Society USA Political Action Task Force - promoting the exploration and settlement of the planet Mars among the general public and political leaders

Ares Online - companion website to Ares: the Mars Society's CD-ROM Magazine

Civilization and Culture Task Force - a forum for the discussion of the technical, political, economic, social, and ecological aspects of Martian exploration and settlement. Formerly the Law and Governance Task Force

Caltech/JPL Mars Society - Pasadena, CA (USA)

Mars DC - Washington, DC (USA)

Mars Society - New England Chapter - Boston, MA (USA)

Mars Society - New York Chapter - New York, NY (USA)

Michigan Mars Society

North Shore Mars Society - Welcome to the North Shore Chicago chapter of the Mars Society, whose purpose is to further the goal of the exploration and settlement of Mars. On to Mars!

Mars Society Caltech/JPL

Mars Society Wisconsin Chapter - Madison, WI (USA)

Austin Mars Society - Austin, TX (USA)

Mars Society - Ohio Chapter

Mars Society Belgium - The Belgian Chapter of the Mars Society

Mars Society: Northern California Chapter - News, activities and projects regarding the Northern California Chapter of the Mars Society.

The Mars Society - Australian Chapter

Mars Society UK

Schaumburg IL Chapter of the Mars Society - Promotes the exploration and settlement of Mars. Activities are listed.

Mars Society, Ohio Chapter, Dayton Branch - Promotes the human exploration of the Red Planet. Makes presentations to community groups and lobbies Elected Representatives.

Mars Society California - California (USA)

The Mars Society - Mid-Oregon Chapter - Corvallis, OR (USA)

Chapters.MarsSociety.org - Mars Society webserver available for hosting Mars Society chapter websites

Mars Society Puget Sound - Seattle, WA (USA)

The Toronto Chapter of the Mars Society

Mars Society - Canadian Chapter

Chapter Listing - Mars Society chapters in USA by state and around the world.

NASA Center for Mars Exploration - Various resources on Mars Exploration with an educational emphasis.

JPL Mars Exploration Program - Various sections: Extreme Planet, Follow the Water, Mars Rocks, Life on Mars?, The Martian Mystique and Just for Kids.

Polar Landing Site for a First Mars Expedition - Discusses the reasons why a site on the Martian pole might be the best place to land a first expedition to Mars.

Mars In the Mind of Earth - A Set of Ongoing Bibliographies of Terran Literature concerning the Planet Mars

Romance to Reality - moon & Mars expedition & settlement plans

2009 Reference Mission Overview - NASA Mars Mission

Walsh Mars Institute - This site is dedicated to sharing the general science learned about Mars in a simple, easy to access format.

Mission to Mars IPRO - Reports on a project undertaken to design and plan a manned mission to Mars utilizing existing space technology and off the shelf components. Interdisciplinary effort by students from the Illinois Institute of Technology and the Chicago-Kent College of Law.

Why the Hell Aren't We Going to Mars Yet? - Impassioned plea for action on a manned Mars mission

Mars Direct - Robert Zubrin's innovative plan to send humans to Mars.

Human Exploration of Mars - The Reference Mission of the NASA Mars Exploration Study Team.

Russian Mars 96 Mission - Detailed description of failed Mars exploratory mission

Act to Save the Mars Lander - Site lobbying for continued Mars exploration in general and the continuation of a now-outdated project in particular.

Explore the Planet Mars - Realistic, interactive, 3D walk-though of a Mars base desgined for the first humans to land on Mars including a Mars habitat, greenhouse, Mars car and robot rovers.

Clickworkers - Project helping NASA to date Martian land areas by counting craters. Information on how to participate.

Exploring Mars With Books and Weblinks - The history and future of the planet Mars.

Mars Store - Mars and space-related books, videos, toys, games, and apparel. Partnered with the MarsNews.com website.

Marsvid.com - Online advertisement for a documentary video on Mars as seen in popular culture.

The Case for Mars VI - International Conference for the Exploration and Colonization of Mars

Mars Society Founding Convention - The Mars Society was founded in 1998 at the Mars Society Founding Convention in Boulder, Colorado. The four day event boasted over a hundred different speakers and over two hundred papers were submitted. At the convention, the Mars Society Founding Declaration was read and approved by all attendees, and the Mars Society was formed.

Mars: Living Planet, June 2nd 2001, Delft, Netherlands - A report from a symposium on June 2nd 2001 organized by the Dutch chapter of the Mars Society, featuring Robert Zubrin, Chris McKay and others.

The Peculiar Rocks of Mars - Besides other interesting pictures you can see a fluid leaking rock and animals on Pathfinder and Viking pictures!

Mars Meteorite Home Page (JPL)

Blue Sky on Mars Pathfinder and Viking Pictures [mars-news.de] - The original raw image data from Viking and Pathfinder show blue sky.

Search for Past Life on Mars - Possible Relic Biogenic Activity in Martian Meteorite ALH84001

Meteorites from Mars!

The Martian Fossils - The evidence for "Martian fossils" is a story of chemistry and chemical analysis. Here's the evidence explained for you to understand and evaluate.

Search for life on Mars will start in Siberia - NASA funds permafrost study to support astrobiology research.

Life on Mars? [MarsNews.com] - The discovery of Mars meteorite ALH84001 and debate about the findings of ancient Martian life contained within. The Viking experiments and the debate about the results of the Labeled Release experiment. The implications if Mars life is found.

Life on Mars and Europa Space Exploration Page - Images and facts about the possibility of life on Mars, Europa, and current exploration projects.

Debate on Mars Life Rages Long after Viking - Scientific re-consideration of possible evidence of biological processes on Mars from Viking Lander data.

Old data holds new hope for Life on Mars - There's a rhythm in the release of radioactive-labeled gas in the experiments done by the Viking-Landers in 1976. This cycle could be the circadian rhythm of bacteria.

Brodacz, Ralph - Past Life On Mars Discovery - Contains personal views on mars with NASA photographs.

Martian meteorite debate rages on - News article examining controversy caused by studies of Martian meteorite ALH 84001 which may contain organic compounds.

Beagle2-Leicester University Space Research Centre - Information on the Beagle 2 Mars Lander for launch in 2003 aboard the European Space Agency's Mars Express mission, with instrumentation developed at Leicester University to search for evidence of extant or extinct life.

The Cydonia Controversy - An investigation of the Face that takes a more scientific approach.

Planet Mars - Promotes the idea that private enterprise and schools will land people on Mars at smaller cost and greater purpose than government.

Mission Mars - A detailed plan for a Martian colony developed by students as an entry in the ThinkQuest contest for educational Web sites.

The Mars Millennium Project - An official White House Millennium Council youth project challenging students across the nation to design a community for the planet Mars.

New Mars: A Journal of the Martian Frontier - Published by the Mars Society; its archives contain significant articles on the rationale of colonization.

West to Mars - An inspirational site devoted to pioneering on Mars.

Mars First - A private individual's site intended to help stimulate public interest in both manned and robotic missions to mars, with the aim of human settlement as soon as possible.

The Case for Mars - International Conference for the Exploration and Colonization of Mars.

The Economic Viability of Mars Colonization - A paper by Robert Zubrin.

Mars Colonization - Information from the Astrobiology Web about how and why Mars might be colonized.

The Possibilities of Colonizing Mars to Sustain Life - A presentation based on the hypothesis that establishing a colony on Mars would require a great deal of technological advancement and an increase in knowledge of how to utilize current Martian and Earth resources.

Human Habitats at Mars: Defending Against Contamination - Detailed news report on how proponents of human settlements on Mars defend themselves against charges of contaminating what's possibly already thriving there.

Mars Colony - sponsored by the Martian Federation - A venture to establish a privately funded colony on Mars.

The Mars CERES Project - An Engineering Student Design Project to develop a habitable deployable greenhouse on the surface of Mars.

The Ares Concordant - A non-profit organization seeking permanent human Mars colonization by private fund-raising initiatives.

Martian Time - Everything about keeping time on Mars. Over 80 Martian calendars and over 40 Martian clock systems.

Conquering Mars - Offers facts and figures about colonization and terraforming of Mars.

Mission Mars - to boldly GO - The engineering challenges of a manned expedition to Mars - pages focusing on each of the engineering disciplines.

The Astrobiology Web® Terraforming - Terraforming links and images.

Red Colony.com - The Future of Mars Today - Learn about Mars colonization and terraforming with the latest news, images, downloads, newsletter, and chat.

Terraforming Mars - When, why, and how to cultivate Mars. This site also includes current events, links, message boards, chat rooms, and constantly updated information.

Mars Terraforming Agency - A detailed plan for the terraforming of Mars.

How Terraforming Mars Will Work - An article from the "How Stuff Works" site with detailed information on terraforming Mars.

Terraforming Mars? - An educational site, part of the ThinkQuest library, that discusses considerations that would affect a decision to terraform Mars; it includes a series of pictures showing the process of terraforming.

The Physics and Biology of Making Mars Habitable - Summary of a paper presented at a recent NASA-sponsored conference, with references.

The Drexlerian Terraformation of Mars - Subtitle: A New Ark for Humanity. A technical article on terraforming from the Newsletter of the Molecular Manufacturing Shortcut Group.

Biology and the Planetary Engineering of Mars - A paper by Julian A. Hiscox that clarifies the distinction between ecopoiesis and terraforming.

Keeping Mars Warm with New Super Greenhouse Gases - A recent technical paper from the Feb. 27, 2001 issue of the Proceedings of the National Academy of Sciences.

First Step in Terraforming Mars - Terraforming Mars: why we must do it, how quickly it can be done and how we can do it. A related page gives technical details.

Earth to Mars - Terraforming Mars - both introductory and in-depth material, including basic ecology and ecosystems information.

Planetary Maps: Other worlds: Blue Mars - What would Mars look like if terraformed? These maps give a clue.

ORRERY: Phobos and Deimos - More serious look at Mars's two moons.

Phobos and Deimos Images - On the NASA Image eXchange (NIX) website.

Tiverton Astronomy Society: Mars's Moons - Basic information on Phobos and Deimos.

The Moons of Mars - Good detail from the University of Tennessee.

Deimos Animation - Detailed MPEG showing the surface features.

Deimos - From The Nine Planets.

Phobos Animation - Highly detailed MPEG showing the cratered and cracked surface.

Phobos - From The Nine Planets.

Mars Atlas - Mars Atlas on CD-ROM, provided by NASA/Ames Center for Mars Exploration

Atlas of Mars -- Roving Mouse Interplanetary - A color Atlas of Mars. Navigate by clicking on a globe. Point at a feature to see if it has an official name.

Ares CD-ROM Clickable Mars Atlas - Clickable Mars Atlas & images provided by the Mars Society.

PDS Mars Explorer for the Armchair Astronaut - Provided by the US Geological Survey

NASA/Ames Mars Atlas - Mars Atlases and image finders provided by NASA/Ames Research Center

www.MarsGlobalSurveyor.com - Searchable database of MOC images from Mars Global Surveyor. Search by location, caption text, date, and feature name.

A Step Beyond - Chris Anderson's novel about the first manned trip to Mars. Contains fiction, maps, photo mosaics, 3-dimensional images of the landing sites, trajectories, blueprints of the spacecrafts....

Mars Crossing: Reviews - Site with reviews of MARS CROSSING, a science fiction novel about an expedition to Mars

Mars Trilogy Concordance - Unofficial Fan Web Site for Kim Stanley Robinson's Mars Trilogy. Includes KSR Interview.

Red Mars - Kim Stanley Robinson's Red Mars: Site detailing plot, characters, themes etc for college-level sf class.

the unofficial, unauthorized Red Green and Blue Mars Site - the unofficial, unauthorized Red Green and Blue Mars Site, with a map of terraformed Mars, tourist info, links, a faq and more

The Red Mars Project - A University project to consider the sociological and other implications of the Mars Trilogy by Kim Stanley Robinson, with literary analysis and essays.

NSSDC Photo Gallery: Earth - Selected images from the space, with captions.

The Nine Planets: Earth - General information, some statistical data and links.

Welcome to the Planets: Earth - Includes a planetary profile and some pictures.

Earth Observatory: The Blue Marble - Detailed true-color images of the entire planet.

The Solar System in Action: Earth - General information about the planet and some pictures.

Views of the Solar System: Earth - Views from the space, animations, general information and data.

Windows to the Universe: Earth - An overview of the planet and its moon including general information, data, pictures, news, historical and mythological background.

Great Globe Gallery - Graphical collection of different views of our planet.

Earth Facts - Earth's astronomical and physical measurements and statistics.

Clementine Lunar Image Browser 1.5 - Interactive picture, based upon data from a spacecraft, that allow to settle the point of view.

NSSDC Photo Gallery: Moon - Select images from various space probes and telescopes.

MoonBase7 - Facts, missions, phases, news, links. Also dedicated to the space in general and robotics.

Lunarama - A collection of links, with brief comments.

The Moon Illusion Explained - Why our satellite looks big at the horizon and smaller when higher up.

Moon Society - Dedicated to human settlement in our natural satellite and affiliated with the Artemis Project. Presents its aims and its organization.

Lunarsat Info Page - Multimedia presentation of the European space mission to investigate the south pole for its suitability for the first permanent human outpost.

Woman in the Moon - Several features of lunar landscape combined can be seen as a profile of a woman.

The Solar System in Action: Moon - General information about the satellite, the eclipses and the phases, presented in a popular language.

Digital Lunar Orbiter Photographic Atlas of the Moon - Digital edition, with all 675 plates. Search by latitude/longitude, by name or by photo number.

Moon Survey - Tips for observing our satellite and drawing lunar features. Data archive, pictures, movies and selected links also available.

Keith's Moon Page - A collection of facts, phases, folklore and photographs.

Lunar Reclamation Society, Inc. - Milwaukee-based membership organization engaged in public outreach and education about the benefits of establishing a permanent human presence on the Moon.

Interactive Map of the Moon - The visible and the hidden side. Includes games and basic information about the satellite and the lunar missions.

Lunar Nearside Directory - Large gallery of lunar surface photographs from the Lunar Orbiter database and amateur astronemers, all cross-referenced to Rukl's Atlas.

Moon Page - Some facts, quotations, trivia chosen at random.

NYTimes.com - Moon's Dust Hides a Throbbing Heart - Laser-ranging measurements indicate that the moon is a bit flexible, hinting at a molten interior. [Requires free NYTimes.com registration to view.]

What's a Blue Moon? - From Sky and Telescope magazine. Explains what it is and when the phenomenon happens.

Space.com: More Moons Around Earth? - Article describing the asteroid Cruithne, and orbital motions at gravitational balance points in space that temporarily pull asteroids into Earth orbits.

The Calculations and Analysis of Density of the Moon Craters - Scientific paper exploring the connection between lunar crater density and longitude/latitude.

Geologic Lunar Research Group - Resource for all lunar observers interested in geologic, dome and TLP research. Some content in Italian.

Moon Stereogram Demonstration - Demonstration as to why the Moon appears larger when nearer the horizon than when high in the sky.

Summer Moon Illusion - An explanation of the illusion that the Moon, low on the horizon, is actually bigger then when seen higher in the sky.

Phases of the Moon and Percent of the Moon Illuminated - Pictures, animations and brief comments.

The Correct Time and Moon Phase - From the atomic clock at the United States Naval Observatory.

Moonstick Information Site - Describes a slide rule moon phase calendar and provides other methods of computing astronomical information.

Moon Phases - Online calculation of moonphases including phase illumination age distances angular diameter new/full moon calculation

Welcome to the Planets: Venus - Planetary profile and vital statistics, some pictures.

Archives of Images and Tables for Venus Thermosphere - Recent model results that illustrate the thermal, compositional and dynamical responses of the upper atmospheres of Venus, Earth, and Mars to solar EUV-UV flux.

Venus - From Dilip's Planet Corner.

Venus - Planet Venus

The Pioneer Venus Mission - Two NASA probes the investigated the planet in 1978.

Orrery: Venus - Concise introduction to the planet, with resources.

NSSDC: Venus - From NASA's photo gallery.

Venus - From "Views of the Solar System".

Venus - NASA's Windows to the Universe.

Venus: Lava - Detailed look at its lava composition.

Venus - Details on this planet.

Venus - From The Nine Planets.

Venus: Earth's troubled sister - Although it looks a lot like Earth, it's actually dramatically different.

Venus - A guide to the planet, pictures, descriptions, statistical data, atmosphere contents, temperatures, year/day length, diameter, albedo.

Mercury - Planetary profile and vital statistics.

NSSDC: Mercury - From NASA's photo gallery.

MESSENGER: NASA probe - Due for launch in 2004, it will reveal more about the innermost planet.

Mercury - From "Views of the Solar System".

Mercury - From Dilip's planet corner.

Planet Mercury - From Dilip's Planet Corner.

Constants and Equations: Mercury - Wide range of information about this planet.

Mercury - NASA's Windows to the Universe

The Planet Mercury - good detail on this planet.

Mercury - From The Nine Planets multimedia tour of the solar system.

Mercury - Introduction to the closest planet to the Sun, with details of the Messenger mission.

The Kuiper Belt and the Oort Cloud - Primer on objects in the outer solar system from The Nine Planets multimedia tour of the solar system.

Kuiper Belt - Guide to KBOs and recent research by Dr. David Jewitt of the University of Hawaii Institute for Astronomy

Kuiper Belt Objects (KBOs) - Basic information on the Kuiper Belt from ORRERY: the solar system in action.

A Deep Ecliptic Survey for Kuiper Belt Objects - A description of the Deep Ecliptic Survey, a systematic search for Kuiper Belt Objects using large telescopes.

List of Transneptunian Objects - Lists currently known transneptunian objects, also known as Kuiper Belt Objects. Updated daily.

Distant EKOs: The Kuiper Belt Electronic Newsletter - Recent and past issues of the Distant EKOs Newsletter, a review of the science and current events surrounding Kuiper Belt Objects

A Shortcut to Pluto - New Horizons mission team plots a faster path to Pluto and the Kuiper Belt. Spacecraft could complete 3 billion mile journey by 2015.

New Horizons - An unmanned Pluto-Kuiper Belt probe study. New Horizons, if approved, would launch in 2006.

Pluto-Kuiper Belt mission team dedicates Science Operations Center - On Monday, February 4, on what would have been the 96th birthday of Plutos discoverer, Clyde W. Tombaugh, NASAs New Horizons Pluto-Kuiper Belt mission team announced the dedication of its Science Operations Center in his honor.

NASA Goddard Joins Team to Explore the Solar System's Final Frontier - NASA's Goddard Space Flight Center has joined a team led by the Southwest Research Institute to begin design studies for what could be the first spacecraft to visit PLuto and the Kuiper Belt.

Lowell Observatory: Deep Ecliptic Survey - The official home page of the Deep Ecliptic Survey, an initial reconaissance of the Kuiper Belt

UniSci: Some Kuiper Belt Objects Turn Out To Be Binary Pairs - NASA's Hubble Space Telescope is hot on the trail of an intriguing new class of solar system objects -- dim and fleeting objects that travel in pairs in the frigid, mysterious outer realm of the solar system called the Kuiper Belt.

STScI: Hubble Hunts Down Binary Objects at the Fringe of Our Solar System - The Hubble Space Telescope is hot on the trail of a puzzling new class of solar system object that might be called a Pluto "mini-me."

nationalgeographic.com: 800-Mile-Wide "Object" Found in Solar System - Astronomers have discovered the largest object in the solar system since Pluto was named the ninth planet in 1930.

How Big Is 2001 KX76? - Size comparison of 2001 KX76 and other known objects. From NASA Astronomy Picture of the Day.

European Southern Observatory: Virtual Telescope Observes Large Asteroid - European Southern Observatory images of 2001 KX76

Discovery Announcement of 2001 KX76 - From the National Optical Astronomy Observatory Newsletter

Caltech: Quaoar - Frequently Asked Questions About Quaoar

science.nasa.gov: Hubble Spots the Biggest World Since Pluto - NASA's Hubble Space Telescope has measured Quaoar and found it to be 1300 km wide.

swri.edu: A Kuiper Belt Glossary - This page lists acronyms and definitions of terms used in Kuiper belt research.

Solar Images from SDAC - Daily pictures from the SOHO and Yohkoh space platforms, the US National Solar Observatory, and the Mauna Loa Solar Observatory.

Cosmic and Heliospheric Learning Center - Based at NASA/GSFC. Includes sections about the Sun, the cosmic rays and the history of its study.

The Sun: a Pictorial Introduction - A college-level survey of the star, with slide set of 20 images.

Sun Position Calculator - Calculates Sun azimuth and altitude for a given location and date.

Stanford Solar Center - Presents a collection of educational activities based on Solar Oscillations Investigation (SOI) and Solar and Heliospheric Observatory (SOHO) data.

Birmingham Solar Oscillations Network - Who they are and what they do. Also includes background information, results, data.

Global Oscillation Network Group - Extensive information about the group and the project, which aims to conduct a detailed study of solar internal structure and dynamics using helioseismology.

The Nine Planets: Sun - General information, some statistical data and links.

Sunspots and the Solar Cycle - Up-to-date monitoring of sunspots and the solar cycle, with tutorials, material for educators, and interactive activities.

YPOP Tour of the Sun - Educational information about the Sun.

The Virtual Sun - Virtual tour of the sun which uses images, diagrams, and movies to illustrate subjects such as solar wind, solar flares, the solar surface and sunspots.

How Stuff Works: Sun - In-depth illustrated description of the Sun, its surface, atmosphere, sunspots, solar prominences and solar flares.

Views of the Solar System: Sun - Pictures, animations, general information and data.

AAS Solar Physics Division - [Greenbelt, Md] Members, organization, news, meetings, contacts.

Analemma - Explains what it is, also with a few simple animations.

NASA/Marshall Solar Physics - The Solar Physics Branch of Marshall Space Flight Center's (MSFC) Space Sciences Laboratory (SSL) is composed of 15 scientists involved in various studies of the physics of the Sun.

The Solar System in Action: Sun - General information about the star presented in a popular language.

World Book: Sun - Basic features and facts.

Windows to the Univers: Sun - Overview including general information, data, pictures, news, historical and mythological background.

The Virtual Sun - A virtual tour with basic information. Some movies also available.

The Sun is a Ball of Iron - Dr. Oliver K. Manuel's posits a new theory of the sun's formation, composition and energy production.

Solar Orbit - The site describes the solar orbit and consequences which result out of this movement of the sun. Detailed description and downloadable program allow you to investigate further details.

The Aurora Page - Gallery and links.

Auroral Image Gallery - Auroral image gallery, including images from space.

Aurora Discussion Forum - Tips for aurora photography, and discussion on recent observations of aurora.

Sodankylä Geophysical Observatory - Observations and research related to northern lights, aeronomy, atmospheric chemistry, and related science.

Aurora Borealis Photo - Image Gallery, aurora photos for sale.

Aurora from Scotland - Image Gallery with auroral photos from Scotland

Discover Magazine: Seeing the Light - Article on aurora and how understanding them may help with protecting satellites from their effects.

Alaska Science Forum: Aurora - News, stories, explanations of phenomena related to aurora

Home of the Northern Lights - Image Gallery of aurora photos, instruction and tips for taking auroral photos

Auroral photography - Auroral photos from Sodankyla, Finland

Northern Lights - Image gallery, photo contests, regular updates, news. (english and norwegian)

Aurora in Robert Service poems - Poetic descriptions of aurora by Robert Service

Auroral Station in Adventdalen - Observatory on Svalbard (Spitzbergen), associated with University of Alaska and University of Tromsø.

Painted sky: the aurora - Image gallery of auroral photos from the ground, from space, and graphics related to aurora.

University of Calgary portable auroral imager - Data, images, and instrument description of a high resolution auroral imager.

Sondrestrom Research Facility - Auroral observatory with a large complement of instruments (including incoherent scatter radar) on the west coast of Greenland.

Aurora Borealis - Image Gallery of auroral photos from 19 July, 2000

Aurora Borealis - Image gallery and description of aurora (finnish and english). Phototips, sales of images.

AuroraWatch UK gallery - Image gallery of auroral images from the UK.

Museum of time - Time lapse photography of aurora (Netherlands).

Millstone Hill Observatory - The Millstone Hill Observatory, located in Westford, Massachusetts, is a broad-based atmospheric sciences research facility.

Tromsø Auroral Observatory - Some Articles about the Aurora and the Geomagnetic Field (norwegian, english, german).

NOAA POES (Polar Orbiting Environmental Satellite) - Real-time auroral activity derived from satellite.

Proton Precipitation into the Atmosphere - Workshops, discussion group, links.

GEDDS Allsky Image Display - Real-time auroral images from Poker Flat, Alaska (during darkness in winter only).

Geophysical Institute - Aurora Forecast - Daily during the winter. Summer has only forcasts when significant magnetic storms happen.

Automatic Geophysical Observatories - All-sky images and keagrams from South Pole.

About Auroras - Concise introduction to the phenomena that are the lights in the sky.

Auroras 2000.com : Presented by the Exploratorium - Guide to the Northern and Southern Lights. News, NASA images, forecasts, and background on the aurora.

Jupiter's Aurora - Images taken by the Galileo spacecraft.

Comparative Aeronomy in the Solar System - Workshop, discussion group, links for topics related to aurora on other planets in the solar system.

JHU/APL auroral particles and imaging - Stories, data from DMSP satellite, movies from space, links, publications.

Latest IMAGE-WIC (wide-band imaging camera) image - Real-time images of the entire auroral oval from space.

Current POLAR UVI (Ultraviolet Imager) Image - The entire auroral oval from space in real-time.

Polar Visible Imaging Investigations/Visible Imaging System - Real-time images from space, gallery of movies, data, instrument description.

SAMPEX (Solar Anomalous and Magnetospheric Particle Explorer) Introduction - High energy particle precipitation.

Fast Auroral SnapshoT Explorer (FAST) - Polar orbiting satellite for auroral studies.

Auroral Image of the Day - X-ray images of the auroral oval from space (PIXIE on POLAR)

Galileo Images - Jupiter: Orbit 11 - Collection of photographs from the Galileo Mission to Jupiter.

Jupiter Auroral Campaign - Hubble Space Telescope images of the jovian aurora.

Hubble Images of Jupiter's Aurora - Jupiter's auroral emissions and small auroral spots associated with the flux tube of jovian satellites.

Rice Space Institute Outreach - Links to educational space weather pages, including the "Museums Teaching Planet Earth".

Saturn's Aurora - Hubble Space Telescope images.

Saturn's Aurora - Hubble Image.

Borealis 2000 - Photo gallery of aurora borealis, meteor showers, and planetary alignments hosted by photographer Dirk Obudzinski. Includes news and sky forecasts.

Learning About the Aurora - A scientific description of auroral processes based on current research. Written for high school- and college-level students.

Uranus Aurora - Explanation of how aurora is different on Uranus

Prime Focus-Iowa Aurora Borealis - Lots of nice pictures.

The Aurora: Information and Images - Forecasts, tutorial, data, images, animations, videos.

Neptune Aurora - There is even aurora on Neptune.

Auroral Activity Index - NOAA POES - Auroral Activity from NOAA/TIROS.

Asahi Beer Natural Science Classroom - Interactive lecture on the aurora (english, spanish, japanese).

Aurora November 2001 - Pictures taken during the big storm on 5 November, 2001, in Iowa.

Auroral Audibility - Can you hear the sound of the aurora?

Earth's Grand Light Show - National Geographic Magazine article on the aurora.

Aurora, Aurora Borealis, Northern Lights, Revontulet Page by Tom Eklund - Aurora Borealis images, information, and links. Many links to photographers.

Aurora Gallery - Photos from many photographers and places, sorted by auroral event.

Big Bear Solar Observatory WWW Page - The BBSO is operated by the New Jersey Institute of Technology.

High Altitude Observatory Homepage - High Altitude Observatory (HAO) is dedicated to the study of the Sun and of the response of the Earth's upper atmosphere to the Sun's output.

Catania Astrophysical Observatory

HESSI Home Page - HESSI, High Energy Solar Spectroscopic Imager, at NASA Goddard Space Flight Center

The Solar and Heliospheric Observatory -- SOHO - Spaceborn solar observatory.

Mees Solar Observatory Home Page - one of the University of Hawaii Haleakala Observatories. We are located on the summit of Haleakala , Maui, Hawai`i. Our elevation is 3,054 meters (approximately 10,000 feet).

National Solar Observatory - Sacramento Peak

National Solar Observatory - Kitt Peak

MLSO Analysis Homepage - Mauna Loa Solar Observatory

UCO/Lick Observatory

The San Fernando Observatory - Operated by the Department of Physics and Astronomy at California State University, the San Fernando Observatory is a state of the art Solar Observatory and the primary astronomical research tool of the Department of Physics and Astronomy.

The solar telescope THÉMIS - THÉMIS [Heliographic Telescope for the Study of the Magnetism and Instabilities on the Sun] is a new generation solar telescope built by the INSU/CNRS (France) and the CNR (Italy) agencies. The telescope is installed at the International Observatory of the Canary Islands (Tenerife, Spain) which is operated by the Instituto de Astrofísica de Canarias.

Ulysses/NASA Home Page - The Ulysses Mission - A Deep Space Voyage to High Latitudes over the Solar Poles

Wilcox Solar Observatory

Yohkoh Public Outreach Project - Solar educational resources from the Yohkoh X-ray telescope space mission. Includes images, movies, educational resources, and a "tour" of the Sun.

Cracow Observatory - Solar Radio Emission - Contains daily data on radio emissions.

Solar Group of RATAN-600 - Part of Russian Special Astrophysical Group located in the Caucasus mountains of Karachaevo-Cherkesia.

KIS WWW Homepage - Beschreibung

HESSI at Berkeley - This site provides information on the High Energy Solar Spectroscopic Imager, a NASA spacecraft able to make high-resolution images and spectra of the soft x-ray and gamma-ray emission of the Sun.

The 60-Foot Solar Tower - The HiDHN project is a network of two sites whose primary purpose is to study the high order oscillations of the sun in the narrow sodium D-line wavelengths. The two sites, Mt. Wilson Observatory, above the city of Pasadena in California and the Crimean Astrophysical Observatory (CrAO)(US mirror site) in the Ukraine, study solar oscillations to develop a model of the internal structure of the sun(HiDHN)

Solar Telescopes Resources - from Astroweb

Coronal Diagnostic Spectrometer - News, images, data, and information about the CDS instrument on SOHO.

IPS Culgoora Solar Observatory - The Culgoora Solar Observatory is located 25 km west of the town of Narrabri, in north-west New South Wales. The observatory conducts continuous optical and radio observations of the sun every day of the year.

Richard B. Dunn Solar Telescope - Specializes in solar high resolution imaging and spectroscopy.

The SOHO Archive - Allows searches from the sources involved in this ESA - NASA project by setting observation period, wavelength, coordinates, objects and instrument.

Solar UV Atlas from HRTS - A brief presentation of its features.

Solar Data Analysis Center - Features links to data resources. Also includes images, news, eclipse information. Based at NASA Goddard Space Flight Center in Greenbelt, Md.

Arthemis - Presents information and resources about a new class of solar data archives and some projects involved, including Themis, Rise/Pspt and Wsc.

Space Environment Lab Solar Image Index - Pictures at various wavelengths selectable by date or by region number.

Solar Influence Data Center - RWC Brussels World Data Center for the Sunspot Index. Features archives, forecasts and information.

Bass2000 - French national project which allows searches from various sources, including Themis, by setting observation period, wavelength, coordinates, objects.

Space Weather: A Research Perspective - Brief but good introduction to space weather. Explanation of space weather related terms.

Solar Terrestrial Activity Report - Contains daily updates of solar and geomagnetic data relevant to the reception of distant radio stations.

Space Environment Center - Access to the latest space weather data and space weather prediction.

Today's Space Weather - Real time data from the sun, solar wind, magnetosphere, ionosphere, and links to predictions and educational pages.

International Solar Terrestrial Physics (ISTP) - NASA program that studies Sun-Earth interaction with links to an educational component of the program and includes detailed information on a number of satellites and data.