21. StarChild A Learning Center For Young Astronomers Information and online movies related to the solar system and space exploration. A service of the High Energy Astrophysics Science Archive Research http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

22. Virtual Solar System @ Nationalgeographic.com Discover the wonders of our solar system in a spectacular 3D environment. Take a flyby tour of the sun and each planet in its orbit, observe planets and http://www.nationalgeographic.com/solarsystem/splash.html

Discover the wonders of our solar system in a spectacular 3-D environment. Take a flyby tour of the sun and each planet in its orbit, observe planets and extraterrestrial weather patterns up close, and more. For PC only Requires free Viscape SVR plug-in For PC and Mac

23. The Solar And Heliospheric Observatory Mission information and data on the spaceborn solar observatory. http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

24. BBC - Science & Nature - Space - Solar System Your travel guide to the solar system from BBCi. Includes exclusive video and audio clips and an interactive 3D tour. http://www.bbc.co.uk/science/space/solarsystem/

@import url('/includes/tbenh.css') ; Home TV Radio Talk ... A-Z Index MONDAY 26th September 2005 Text only Animals Prehistoric Life Space ... BBC Homepage In Space Solar System 3D tour Sun ... Help Like this page? Send it to a friend! You are here: BBC Space SOLAR SYSTEM DEFINITION The Solar System is made up of the Sun, the planets, their moons, asteroids and comets REASONS TO VISIT Experience an amazing variety of worlds Run the gauntlet of floating rocks and boulders in the asteroid belt Encounter the icy comets that wander through the outer Solar System Solar System Jigsaw Can you build the Solar System? WHAT TO SEE The Sun The Sun is a star that lives at the centre of the Solar System. Its huge gravity holds the planets in place. The planets The planets all revolve around the Sun. There are nine in total - Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. Moons Moons rotate around their parent planet. Earth has one moon, but some planets have over 30. Only Mercury and Venus do not have any moons. Asteroids Asteroids are rocky bits of debris up to 1,000km (620 miles) across. Most live in the asteroid belt between Mars and Jupiter. They are the remnants from early planets that collided and were torn apart. Comets Comets are dirty snowballs of ice and dust that revolve around the Sun in long orbits. When they approach the Sun they heat up, leaving a trail of gas behind them, which looks like a tail.

25. Planetary Data System: Home solar system exploration science data archive, maintained at JPL. http://pds.jpl.nasa.gov/

+ NASA Homepage + Contact NASA The Planetary Data System (PDS) The PDS archives and distributes scientific data from NASA planetary missions, astronomical observations, and laboratory measurements. The PDS is sponsored by NASA's Office of Space Science. Its purpose is to ensure the long-term usability of NASA data and to stimulate advanced research. PDS is continually upgrading and updating its archives, to better serve the needs of its user communities. Learn more about PDS PDS Nodes - The Best of Planetary Data! The PDS includes seven university/research center science teams, called discipline nodes. These nodes specialize in specific areas of planetary data. The contributions from these nodes provide a data-rich source for scientists, researchers and developers. You can visit them through the links on the PDS Nodes navigation bar, below. You will learn more about the archives of each node, and about the education and public outreach services that these nodes provide. Management Atmospheres Geosciences Imaging ... Accessiblity Certification Curator: Valerie L. Henderson

26. Solar System's First Triple Asteroid System Found http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

27. BBC - Science & Nature - Space - Solar System Jigsaw Play with the planets, moons and probes in our solar system jigsaw. http://www.bbc.co.uk/science/space/playspace/games/jigsaw/jigsaw.shtml

@import url('/includes/tbenh.css') ; Home TV Radio Talk ... A-Z Index MONDAY 26th September 2005 Text only Animals Prehistoric Life Space ... BBC Homepage In Space Solar System My space Play space ... Help Like this page? Send it to a friend! You are here: BBC Space Play Space SOLAR SYSTEM JIGSAW Build the Solar System, from planets to space probes. Directions Choose which level to complete Drag and drop each object into the right place Play the game Solar System jigsaw Alien invaders game Asteroid attack game Interactive space map Fantastic voyages quiz Constellations quiz Space Doctor Game Requirements You will need the Flash 5 or above plug-in to play this game. This is free and can be downloaded from the website below: Download the latest version of Flash for free For more help on downloading plug-ins, visit BBC Webwise The BBC is not responsible for content on external sites. A-Z index Animals Prehistoric Life Space ... Go to top

28. Planetary Photojournal NASA's Image Access Home Page Publicly released images from various solar system exploration programs. http://tmsyn.wc.ask.com/r?t=an&s=hb&uid=24312681243126812&sid=343126

29. A Scale Model Of The Solar System online Java applet This 3d solar system applet can be rotated and zoomed with the mouse. Below it are links to other online gravity simulators and resources for building solar system simulations. http://www.burtleburtle.net/bob/physics/solar.html

This applet is the obligatory scale model of the solar system. Distance is in AUs, velocity in AUs per hour, mass in units of 10 pounds, yielding G=1.2944x10 . Initial positions are accurate to about 5 digits. The simulation doesn't account for relativity, oblateness of the sun, solar winds, asteroids, galactic gravitational flux, and any number of other things. The numbers in the corner count how many displays have been done and the fractional error in energy conservation. It starts 1am on January 1, 1999. To start or stop, click. To spin around the sun, click in the middle and drag. To rotate and zoom, click near the edges and drag. The sun remains in the center; there are no controls yet to change that, or to change the distance from the sun. I also have and applet description , some online references for how to build a solar system simulator, a set of stable orbits filling 3-space , a page exploring gravitation with Java , a simulation of Cruithne , and Klemperer rosettes sun mercury venus earth+moon mars jupiter saturn uranus neptune pluto The US Navy provides the coordinates of all planets now, and at any other time give or take a century. I used this for my initial coordinates. (Position is at 1am on January 1, 1999, and velocity is half of 2am minus midnight.)

30. Exploratorium: Cassini Mission To Saturn & Titan They also hope to learn more about the formation of the solar system. On this Web site (which will expand in winter 2004), we ll explore Saturn and its http://www.exploratorium.edu/saturn/

Join the Exploratorium in person or on the Web on January 14, 15, and 22! We'll view the latest images taken by the Titan probe Huygens , and hear planetary scientists interpret the information relayed to earth. Check the Webcast schedule for exact times. On October 15, 1997, the Cassini-Huygens spacecraft , loaded with an array of powerful instruments, rocketed into space on a seven-year journey to Saturn and its vicinity. On July 1, 2004 Universal Time (June 30 in U.S. time zones), the spacecraft began orbiting Saturn for four years, flying close to several of its thirty-plus moons. The Huygens probe will separate from Cassini On this Web site (which will expand in winter 2004), we'll explore Saturn and its environs, adding new images and information as they become available. Visit NASA's Cassini Web site for additional resources for students, educators, scientists, and museums!

31. Our Solar System Learn about asteroids, comets, planets, and the sun. Also contains facts, news, and pictures. http://www.windows.ucar.edu/tour/link=/our_solar_system/solar_system.html

Visit links to the Sun, and visit the planets and other small bodies in the Solar System. Find out about solar system formation, and facts about the bodies in the solar system. See news highlights, and archives of images of the Sun, planets, comets, and asteroids. The Sun Planetary Systems Mercury Venus Earth Mars ... Pluto Solar System Formation Asteroids Comets Solar System Facts Image Archives Solar System Coloring Book Last modified January 12, 2005 by Randy Russell. The source of this material is Windows to the Universe , at http://www.windows.ucar.edu/

32. Astronomy 161: The Solar System Overview with historical background and basic astronomy concepts, details about planets, satellites, asteroids, comets and meteors. http://csep10.phys.utk.edu/astr161/lect/

Astronomy 161 The Solar System In this semester of Astronomy we shall concern ourselves primarily with the Solar System. As an introduction to that, we shall consider the historical development of our modern picture of the Solar System. Introduction A Sense of Time and Scale in the Universe Precursors to Modern Astronomy Overview of the Sky and Planets ... ASTRONOMY 162 LECTURES Next Back Top Home Help

33. Your Gateway To Entire Knowledge About The Universe Provides information about the beginning of universe and solar system. About the planets, quasars, the Milky Way, black holes. Life of a star. Travel in space and extra terrestrial beings. http://www.geocities.com/beyondearth2001/

This page uses frames, but your browser doesn't support them.

34. The Virtual Solar System Features a guide to the solar system for visitors of all ages with a scale model, interactive quiz, text, and images. http://www.solarsystem.org.uk/

The Planets: Mercury Venus Earth Mars ... Pluto Last Updated: 23rd August 2003 Site Details: About Credits Page statistics ... Links The Virtual Solar System Looking for figures? Visit the Datastore for detailed facts and figures on the planets and moons in our Solar System. Get interactive! Fly through a 3D Virtual Solar System and then create your own 10th Planet with this interactive multimedia experiment (Requires Shockwave). Scale model: View the solar system at a scale of 1 pixel = 2000 kilometres to understand the real meaning of space! Test your knowledge: See how much you know about the solar system in this interactive quiz Survey: If you could go into space right now, would you go? Yes No Not Sure Guestbook: Your solar system questions answered! Browse previous questions and ask your own here. Search: Over 190,000 visitors since 27th August 1999. Note: I have recently got a new job, working on an Antarctic Research Station , so I will no longer be able to update this site. Most of the information should remain correct, I just won't be able to add to it or fix any problems that arise. Simon. Top of the page Features: Quiz Guestbook Scale model Datastore ... Today's Moon: The Moon's current phase, updated every four hours:

35. The Copernican Model: A Sun-Centered Solar System A suncentered solar system had been proposed as early as about 200 BC by Aristarchus of Samos (Samos is an island off the coast of what is now Turkey). http://csep10.phys.utk.edu/astr161/lect/retrograde/copernican.html

The Copernican Model: A Sun-Centered Solar System The Earth-centered Universe of Aristotle and Ptolemy held sway on Western thinking for almost 2000 years. Then, in the 16th century a new idea was proposed by the Polish astronomer Nicolai Copernicus The Heliocentric System In a book called On the Revolutions of the Heavenly Bodies (that was published as Copernicus lay on his deathbed), Copernicus proposed that the Sun, not the Earth, was the center of the Solar System. Such a model is called a heliocentric system . The ordering of the planets known to Copernicus in this new system is illustrated in the following figure, which we recognize as the modern ordering of those planets. The Copernican Universe In this new ordering the Earth is just another planet (the third outward from the Sun), and the Moon is in orbit around the Earth, not the Sun. The stars are distant objects that do not revolve around the Sun. Instead, the Earth is assumed to rotate once in 24 hours, causing the stars to appear to revolve around the Earth in the opposite direction. Retrograde Motion and Varying Brightness of the Planets The Copernican system by banishing the idea that the Earth was the center of the Solar System, immediately led to a simple explanation of both the varying brightness of the planets and retrograde

36. PASSPORT TO THE SOLAR SYSTEM Provides an overview of the sun and each of the nine planets. Also includes biographies of researchers. http://www.passporttoknowledge.com/solarsystem/

37. KidsAstronomy.com - Our Solar System Exciting interactive tour of the solar system by KidsAstronomy.com. http://www.kidsastronomy.com/solar_system.htm

What Would You Like To Learn About? The Sun Learn About The Planets Mercury Venus Earth Mars ... Pluto Learn About The Moons of Our Solar System Earth's Moon Mars' Moons Jupiter's Moons Saturn's Moons ... Pluto's Moon Learn About Astroids And Comets Astroids Comets All Planets (For Printing) All Moons Make-A-Solar System Links UniverseToday.com NationWideShelving

38. Astronomy Scape Learn some facts about the planets, solar system, and other astronomy topics. http://www.scapecast.com/onworld/AS/

39. Around The Solar System -- Top Level Page solar system Trading Cards Web Activity. Learn about the objects that make up the solar system by collecting solar system Trading Cards. http://amazing-space.stsci.edu/resources/explorations/trading/

Learn about the objects that make up the Solar System by collecting Solar System Trading Cards

40. PlanetScapes New maps of the solar system and models of various moons and asteroids. art produced by Calvin J. Hamilton, the author of Views of the solar system. http://www.planetscapes.com/

SOLARVIEWS CRPUZZLES SCIENCEVIEWS BOOK STORE ... CROSSWORD Languages English Portuguese Spanish French ... German This is the source for 3D planetary modeling containing maps of the solar system and models of various moons and asteroids. Calvin J. Hamilton's Art Gallery This is a collection of computer generated art produced by Calvin J. Hamilton, the author of Views of the Solar System. Calvin J. Hamilton

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

Page 2     21-40 of 183    Back | 1  | 2  | 3  | 4  | 5  | 6  | 7  | 8  | 9  | 10  | Next 20