81. EarlyGkAstronomy.html Inventing the solar system Early Greek Scientists Struggle to ExplainHow the Heavens Move. by Ellen N. Brundige. Table of Contents. http://www.perseus.tufts.edu/GreekScience/Students/Ellen/EarlyGkAstronomy.html

Please note: These papers were prepared for the Greek Science course taught at Tufts University by Prof. Gregory Crane in the spring of 1995. The Perseus Project does not and has not edited these student papers. We assume no responsibility over the content of these papers: we present them as is as a part of the course, not as documents in the Perseus Digital Library . We do not have contact information for the authors. Please keep that in mind while reading these papers. Inventing the Solar System Early Greek Scientists Struggle to Explain How the Heavens Move by Ellen N. Brundige Table of Contents Introduction Mythology Homer and Hesiod: Chariots of Fire in the Vault of Heaven Other mythological schemes of the heaven ... Related Web Sites Introduction Since the first Egyptian farmers discovered the annual reappearence of Sirius just before dawn a few days before the yearly rising of the Nile, ancient civilizations around the Mediterranean have sought to explain the movements of the heavens as a sort of calendar to help guide them conduct earthly activities. Counting phases of the moon or observing the annual variations of daylength could, after many years' collection of observations, serve as vital indicators for planting and harvesting times, safe or

82. JPL NASA Solar System JPL Home, Earth, solar system, Stars Galaxies, Technology. 8. solar systemSimulator Cassini Genesis Mars Exploration Rover Mars Odyssey Stardust. http://www.jpl.nasa.gov/solar_system/

+ View the NASA Portal Search JPL June 11, 2004 + Cassini arrives at Saturn June 30 PT (July 1 ET) + Genesis sample return Sept. 8 ... Latest Images from Mars NASA's Mars Exploration Rover Spirit is sending back images from the surface of Mars. + Rover news and images Latest News from Cassini Follow the Cassini-Huygens mission to Saturn and Titan. The spacecraft reaches Saturn on June 30. + View release Spacecraft Locks Vault on its Payload Since November 2001 NASA's Genesis spacecraft has exposed specially designed collector arrays to the Sun's solar wind. (Apr. 5) + View release + More news Landing Sites for the Mars Exploration Rovers Explore the selected landing sites for the Mars Rovers Spirit and Opportunity. +View Flash animation JPL First Person Join Dr. Mark Adler as he tells what the twin rovers can expect once they reach the red planet. +View video Solar System Experience Ride along with three of NASA's most exciting robotic missions, or build your own exploratory spacecraft. +Go to site Site Manager: Webmasters: Susan Watanabe Tony Greicius Jason Heidecker,

83. Views Of The Solar System Welcome to http://servant.geol.cf.ac.uk/solar/homepage.htm

Welcome to ... Views of the Solar System (English) Vistas del Sistema Solar (Spanish) Vistas do Sistema Solar (Portuguese) Calvin J. Hamilton

84. Views Of The Solar System Views of the solar system by Calvin J. Hamilton. Views of the solar system offersenhanced exploration and educational enjoyment of the solar system and beyond. http://servant.geol.cf.ac.uk/solar/eng/homepage.htm

Views of the Solar System by Calvin J. Hamilton V iews of the Solar System presents a vivid multimedia adventure unfolding the splendor of the Sun, planets, moons, comets, asteroids, and more. Discover the latest scientific information, or study the history of space exploration, rocketry, early astronauts, space missions, spacecraft through a vast archive of photographs, scientific facts, text, graphics and videos. Views of the Solar System offers enhanced exploration and educational enjoyment of the solar system and beyond. Introduction Sun Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune Pluto Asteroids Comets Meteorites History People Satellite Data Planetary Data Browser Glossary Credits Contents Weekly Feature What's New Mirror Sites ... Credits Awards and Recognition Other Astronomy WWW resources Software to Display Images and Play Movies For questions or comments send e-mail to: cjhamil@lanl.gov or use this e-mail form Calvin J. Hamilton

85. Www.c3.lanl.gov1331/c3/people/calvin/homepage.html solarsystem.nasa.gov/ solar system Exploration Home PageThe solar system Exploration Home Page is part of NASA's Office of Space Science and describes NASA's http://www.c3.lanl.gov:1331/c3/people/calvin/homepage.html

86. The Maine Solar System Model The Maine solar system Models extends from Presque Isle to Houlton toillustrate planet size and distancee distance. The Maine Solar http://www.umpi.maine.edu/info/nmms/solar/

T he M aine S olar S ystem M odel Built by the People of Aroostook County, Maine Click on the name of a planet to see how it appears from US Route 1 as you travel between Presque Isle and Houlton. Scale 1:93,000,000 At forty miles from Pluto to Sun, the largest complete three-dimensional scale model of the Solar System in the World. Description How the Model Was Built Donations and Needs Dedicating the Model ... The Northern Maine Museum of Science Museum Director Kevin McCartney Web page designed by Richard E. Rand Updated July 2, 2003 University of Maine at Presque Isle

87. The Solar System solar system/Space. Exploring the Planets; Galileo Amazing Facts; Jupiter;KidsAstronomy.com Includes information about space and the solar system. http://edtech.kennesaw.edu/web/solar.html

Solar System/Space Research/Informational Sites Astronomy and Space Exploration Gallery - Pick your destination!! Where would you like to go or what would you like to see? Astronomy for Kids - This is a great site for elementary students. Earth Exploring Planets in the Classroom - More than 25 hands-on science activities for teachers and students. Exploring the Planets Galileo Amazing Facts Jupiter KidsAstronomy.com - Includes information about space and the solar system. Also fun and games here! Kids Space Mars Mercury Mysteries of Deep Space ... Solar System Movie and Quiz - From BrainPop. Solar System Glossary Solar System Guide - Non-technical overview of the Solar System. Spacecraft Galileo - Do you know what Galileo is? Space Stuff - Level 1 Space Stuff - Level 2 The Sky - All of these links are wonderful-Don't miss a single one of them!! The Nine Planets: A Multimedia Tour of the Solar System - Includes links to about 90 WWW "pages", one page for each major body in the Solar System. The Solar System - Hotlist The Solar System - Level 1 - Don't forget to click on all the links for additional information. Awesome site!!! (K-2)

88. Solar Wars - A Game Of Solar System Domination Presents game overview, download, screenshots, and control guide http://members.bellatlantic.net/~jme69/solarwars.htm

A Game Of Solar System Domination ... Version 1.40 Is Now Out! ... The Best Version Yet! ... Many New Features And Improvements ... Go Get It Here ... is a turn-based space strategy game, based in a distant solar system, with up to thirty orbiting planets. Starting with your home world, build up your ships and strategy. Scout out nearby worlds, send fleets of ships to attack or send annihilation bombs. Destroy opponents by setting hidden proximity bombs or pulse bombs. Play in single player mode, with computer opponents, or multiplayer mode, over the Internet. See how fast you can eliminate your opponents and dominate the entire solar system! jme69@bellatlantic.net FastCounter by bCentral

89. The Planetary Society: Solar System Guide A Guide to Our solar system. Use this page as a guide to all of the interestingobjects found in our solar system. solar system Fact Sheets. http://www.planetary.org/learn/solarsystem/

A Guide to Our Solar System Use this page as a guide to all of the interesting objects found in our solar system. Solar System Fact Sheets Below you will find a list of solar system objects. Click on the name of the object you wish to learn about. Anywhere there is a picture, click on it to see a larger version of the image. For a basic introduction to the solar system, please visit the Solar System Primer For an up-to-date count of the moons in our solar system, please visit the Moons Page To find out how much you would weigh on Pluto or Jupiter, visit Find Your Weight on Other Planets To find out how much you would weigh on the Moon or Callisto, visit Find Your Weight on Different Moons The Sun Mercury Venus ... Charon

90. Welcome To The SOLAR SYSTEM Summaries and extracts from a book on the solar system and its exploration. http://www.thesolarsystem.org/

91. Solar System Astronomy OUR solar system. Click Here. The maps depict our Suncentered SolarSystem. The first shows an almost edge-on view to show http://freeware.intrastar.net/solarsystem/solarsy1.htm

OUR SOLAR SYSTEM The maps depict our "Sun-centered" Solar System. The first shows an almost edge-on view to show that the planets are all in the same plane. The exception is Pluto which is tilted at a strong angle with respect to the rest of the planets. Some astronomers question it's status as a planet and believe it is just one of many bodies orbiting at the edge of our solar system. Also, notice in the second image that Pluto's orbit crosses that of Neptune. At these times Neptune is our most distant planet. Pluto is the only planet that has yet to be visited by spacecraft, so our knowledge of it is somewhat limited. (To learn more about our wonderful neighborhood click on the planet names in the first image or the planets and sun symbols in the second image. Our moon is not depicted so it's link IS HERE. (The ASTEROIDS Are not shown either.) The blowup of the inner planets on the images is to show detail in their orbits. ONLY FREEWARE HOME freeware@intrastar.net MARIS MULTIMEDIA.

92. How Big Is The Solar System? This is a classic exercise for visualizing just how BIG our solar system reallyis. Introduction. Can you picture the dimensions of the solar system? http://www.noao.edu/education/peppercorn/pcmain.html

THE THOUSAND-YARD MODEL or, The Earth as a Peppercorn Universal Workshop PO Box 426 Middleburg, VA 20118-0426 ISBN 0-934546-21-5 This is a classic exercise for visualizing just how BIG our Solar System really is. Both the relative size and spacing of the planets are demonstrated in this outdoor exercise, using a mere peppercorn to represent the size of the Earth. Guy Ottewell has kindly given permission for this electronic presentation of The Thousand-Yard Model; his exercise is presented in its original form, indexed with a few anchors to help you find you way around the large file. We also include a catalog describing several Ottewell publications. Image of the planets courtesy of NASA Introduction Pacing off the Solar System Additional Notes ... Numerical Summary Introduction Can you picture the dimensions of the solar system? Probably not, for they are of an order so amazing that it is difficult either to realize or to show them. You may have seen a diagram of the Sun and planets, in a book. Or you may have seen a revolving model of the kind called an orrery (because the first was built for an Earl of Orrery in 1715). But even the largest of such modelssuch as those that cover the ceilings of the Hayden Planetarium in New York and the Morehead Planetarium at Chapel Hill-are far too small. They omit the three outermost planets, yet still cannot show the remaining ones far enough apart. The fact is that the planets are mighty small and the distances between them are almost ridiculously large. To make any representation whose scale is true for the planets sizes and distances, we must go outdoors.

93. Solar System Tour solar system Tour. This Flash movie is a tour and you re the guide. Do you have Flash4 from Shockwave? Scoping Out the Sun. solar system Central. Just the facts. http://www.spacekids.com/solarsystem/

Solar System Tour This Flash movie is a tour and you're the guide. Do you have Flash 4 from Shockwave? Scoping Out the Sun A closer look at the sun's corona. Showers, Showers, Everywhere It's a Bird, It's a Plane, It's a Meteor Shower! Solar System Central Just the facts. Tons of straight info on planets, meteors and much more. Other Stories Planet X: Searching for the Tenth Planet Green Slime and Red Goo Billions and Billions ... When School Starts, Is Summer Over?

94. Astronomy 121 Summer 1995 Introductory course taught at the University of Oregon. Includes course materials and many links to supplementary resources. http://zebu.uoregon.edu/astr121.html

Astronomy 121 On-line Access Properties of Our Solar System: Course Materials Administrative stuff: Course Overview Course Outline Helpful Computer Hints for Survival in this Class Paperless Class ... Read The Newsgroup for This Class Some Internet Resources for This Class The Periodic Table of Elements Hubble Space Telescope Current Positions of the Planets Welcome to the Planets ... Voyager Mission to the Outer Planets Quizzes, Tests and Homework: First Homework Assignment First Midterm Hints Take The First Midterm Lab Exercise for Tuesday July 18 ... Take The Second Exam Lectures: Lecture #1 > What is this Class About Anyway? Lecture #2 > Early Solar System Models Lecture #3 > Newton, Gravity and Orbits Lecture #4 > Orbital Properties of the Solar System Lecture #4a > Orbital Properties of the Earth Lecture #5,6 > Overview of The Solar System Lecture #7 > Formation of The Solar System Lecture #7a > Formation of The Earth's Moon Lecture #8 > Formation of Planetary Atmospheres Lecture #9 > From Atmospheric Chemistry to DNA on the Earth Atmosphere Lecture #9a > Monomers to Polymers Lecture #9b > Oxygen Addition to the Earth's Atmosphere Lecture #10,11 >

95. Get Info And Do Research On The Planets, Sun, Moon, Comets, Eclipses, Asteroid, solar system Central 18 July 2000. Our solar system. As you know,planets are part of our solar system. How the solar system formed. http://www.spacekids.com/spacenews/solarsystem-ez.html

Solar System Central 18 July 2000 Our Solar System As you know, planets are part of our solar system. Comets, asteroids and the planets' moons are part of the solar system, too. These things all orbit around a star we call the sun. And it's all held together by gravity. Relative size Distance from Sun Click on a planet to learn more: Mercury Venus Earth Mars ... Pluto About the planets and their orbits The planets are often divided into two groups: the four inner planets (Mercury, Venus, Earth and Mars) and the five outer planets (Jupiter, Saturn, Uranus, Neptune and Pluto). How the solar system formed Scientists believe the solar system began forming 10 to 12 billion years ago as swirling gas and dust formed a thick core. The core, with most of the mass, collapsed around 5 or 6 billion years ago and later became the sun. The remaining matter swirled into a disk. Some of it crashed together and formed planets. That's the main theory, at least, and though most scientists think that's how it happens, there are a few other explanations.

96. DSN Solar System Menu The solar system. latest updates 3 March 1996 From time to time, we will beadding information and new images of various objects in the solar system. http://tes.asu.edu/dsn_solarsyst.html

The Solar System latest updates: 3 March 1996 compiled by Ken Edgett, Arizona State University From time to time, we will be adding information and new images of various objects in the Solar System. Please check the bottom of this page for a list of other sites featuring tours of our Solar System. Spacecraft Sun Mercury Venus ... Kuiper Belt Objects Other Solar System Tours by Calvin Hamilton, Los Alamos National Laboratory The Nine Planets by Bill Arnett Jet Propulsion Laboratory, Pasadena, California WWW address: http://tes.asu.edu/

97. NASA KIDS - A Nasa Site Dedicated To Kids - Kids Of All Ages! NASA Kids is best place for kids interested in Space, Science, Rocket, Astronauts and the solar system. http://kids.msfc.nasa.gov/

NASA NEWS: document.write("" + day + month); document.write(myweekday + ", " + year + ""); Have you seen NASA.gov? Where can you go to find out everything that there is to know about NASA and to get even more activities and games? www.nasa.gov! Stories by NASA KIDS ... by FUTUREASTRONAUT by I have FLASH Show the page animated Privacy Statement

98. Plot Of The Inner Solar System Plot of the Inner solar system. Also available is a view of the innermost regionof the solar system. The plot is of the same form as the plot on this page. http://cfa-www.harvard.edu/iau/lists/InnerPlot.html

Plot of the Inner Solar System The plot below shows the current location of the major planets (Mercury through Jupiter) and the minor planets that are in the inner region of the solar system. Also available is a view of the innermost region of the solar system . The plot is of the same form as the plot on this page. An animated version of this plot is available from our Animations page. This plot must not be reproduced without the express written consent of the Minor Planet Center Jupiter Trojans , here colored deep blue. Numbered periodic comets are shown as filled light-blue squares. Other comets are shown as unfilled light-blue squares. In this view, objects in direct orbits (most of the objects in this plot) move counterclockwise and the vernal equinox is towards the right. (The equinox directions are the direction of the sun as seen from the earth.) The plot is correct for the date given at the bottom of the plot. Back to minor planet lists and comet lists Credits. MPC CBAT

99. Solar System Online Provides the K12 educational community with new, exciting information on space science, project information, and interaction with astronomers and space scientists. http://quest.arc.nasa.gov/sso/index.html

It appears that your browser does not support JavaScript, or you have it disabled. This site is best viewed with JavaScript enabled. If JavaScript is disabled in your browser, please turn it back on then reload this page. Or, if your browser does not support JavaScript, click here

100. Life Extraterrestrial: Life On Other Planets In The Solar System Life On Other Planets in the solar system. People have always wondered whether ornot life exists elsewhere in our solar system. Somewhere besides the Earth. http://www.resa.net/nasa/

Life On Other Planets in the Solar System Looking for Extraterrestrial Life Readme First Student Projects Pre-Space Age Early Space Age ... Extreme environments on Earth, where is life? Origins of Life : how does it start? Biologies of Life : what are the essentials? : life's foot soldiers Conditions of Life: looking at the whole planet Mars revisited Europa closeup Titan Astrobiology : scientific discipline for the 21st Century Webquest Help Email People have always wondered whether or not life exists elsewhere in our solar system. Somewhere besides the Earth. Percival Lowell: Looking for the Martian Canals We humans have never accepted the idea that it is only on the Earth that life has occurred. From earliest times when we peopled the heavens with gods, goddesses and supernatural beings, through our space exploration activities of the 20th Century, we are driven to decide the question: Is there Life on Other Planets?

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