81. Asteroids, The Classic Video Game asteroids, the classic video game of the 70 s. Note If asteroids doesn tseem to be responding to key presses, click your mouse pointer in the game http://www.squadron13.com/games/asteroids/asteroids.htm

Asteroids - The Classic Video Game of the '70's Here is an old time favorite that was loved by many, and still is judging by the high volume of visitors! Only problem was, me being a kid back then, I couldn't afford to pay a quarter a game. Fortunately for you, this one is free so you can play to your hearts content. Although this isn't the most educational game on this site it isn't completely devoid of educational value. You must be able to prioritize and track multiple targets, forcing your brain into "hyperthink" mode. You also must learn to lead your target. And if the planet Earth is ever attacked by a swarm of alien guided projectiles, your services will be in instant demand. Wait for the applet and sounds to finish loading, this may take a minute or two. The Asteroids game screen will show "Game Over - 'S' to Start" once everything is ready. In the meantime you can review the instructions below. Note: If Asteroids doesn't seem to be responding to key presses, click your mouse pointer in the game area. Sometimes you might have to press your shift button while clicking on your "Reload" button. That will force this page to reload completely. Playing the Game Use the keyboard controls described below to maneuver your ship, destroying as many asteroids as you can while avoiding collision with them. Also watch for the flying saucers armed with guided missiles.

82. The SpaceGuard UK Portal National focus in the UK for studies into the threat posed to the Earth by collisions with asteroids and comets. http://www.spaceguarduk.com/

Welcome to the Spaceguard UK Portal LATEST NEWS Why do we have Asteroid scares? Click here HERE to find out. Find out what the British government is doing. Latest news (January 2005) HERE Spaceguard UK is the national focus in the UK for studies into the threat posed to the Earth by collisions with asteroids and comets, and has recently established the privately funded Spaceguard Centre at the former Powys Observatory. T he Spaceguard Centre has established a nationwide network of Regional Comet and Asteroid Information Centres (known as CAIN ) covering England, Scotland, Wales and Northern Ireland. We welcome visitors to the Spaceguard Centre . Come and see what we do, learn about Spaceguard and experience the wonders of astronomy. We also host the MARCHES ASTRONOMY GROUP that meets monthly. PerfectArc

83. Crazy Bone - Online Fun, Games And Jokes For Kids Of All Ages! http://www.crazybone.com/asteroids/

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84. Bob The Alien's Tour Of The Solar System Information about planets, moons, comets, asteroids, stars and galaxies. http://hometown.aol.com/bobalien99/index.htm

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85. Java Boutique, The Ultimate Java Applet Resource - Asteroids The Java Boutique is a collection of applets that you can put on your own pages.It also features Java news, links to other Java resources, and more. http://javaboutique.internet.com/asteroids/

Search Tips Articles Tutorials Reviews ... Forums Sign up for email newsletters from DevX find a web host with: CGI Capabilities MySQL 24-hour Support Unix Hosting Telnet/SSH Shopping Cart Microsoft SQL Server advanced search Clipart Photos Fonts Web Art asteroids Play this game with extreme caution! Can be very habit-forming! Use the keyboard controls described below to maneuver your ship, destroying as many asteroids as you can while avoiding collision with them. Also watch for the flying saucers armed with guided missles. If you warp into hyperspace, your ship will momentarily disappear then reappear on another part of the screen, gradually fading in. During this time the ship is invunerable. Likewise, when your ship is destroyed, a new one will appear in the center of the screen. You can still maneuver and fire during this time so if you are in imminent danger, you have a couple of seconds to get out of it. How To Use Download asteroids.zip (74KB) and unzip within your HTML directory. Java Source: source.html HTML Source: Configuration: config.html

86. MyStars! planetarium program generating accurate charts, with stars, planets, comets, and asteroids. Orrery views make it a useful teaching tool. shareware Win3.1/95/98/NT http://www.relativedata.com/mystars/

87. Untitled Document Features Javascript versions of the classic arcade games Space Invaders and asteroids. Available for play online or download for offline gaming. http://www.cesint.demon.co.uk/

This site is a member of WebRing. To browse visit here

88. Astronomy For Kids Includes information and two pictures related to this topic. http://www.frontiernet.net/~kidpower/asteroid.html

ASTEROIDS Are also known as the Minor Planets. Orbit the Sun mainly between the orbits of Mars and Jupiter. Usually range in size from 1 kilometer to 1000 kilometers across. Are difficult to observe because of their small size. Gaspra (above) and Ida (right) are two known Asteroids. Ceres, Pallas, Juno and Vesta are some other of the larger Asteroids. Sometimes have moons that orbit them. Notice the small moon that orbits Ida (right).

89. Introduction To Asteroids Covers history, asteroid composition, Earth collisions. http://www.mira.org/fts0/planets/098/text/txt001z.htm

Asteroids Asteroids are small, rocky objects which orbit the Sun along with all the other planets. They are also commonly called minor planets (and rarely as planetoids ) because they are considerably smaller than ordinary planets. Astronomers estimate that there are more than 100,000 asteroids in our solar system although only about 8000 have been cataloged as of mid-1997. This image of (951) Gaspra was taken by the Galileo spacecraft in October, 1991. The very first asteroid, called (1) Ceres , was discovered by accident in 1801 by Giuseppe Piazzi. While making a map of faint stars, Piazzi noticed one object whose position moved over the course of several nights. Careful mathematical analysis later revealed that this faint object orbits the Sun at an average distance of 2.77 Astronomical Units with a period of 4.6 years. Piazzi named it Ceres (pronounced SEE-reez) after the Roman goddess of agriculture. Since this first discovery, many such asteroids have been found in a similar manner by searching for faint objects which move relative to the background stars. Newly discovered asteroids are initially given a designation by date, and are only officially named and numbered (in order of discovery) after their orbital properties have been accurately determined. Nearly every conceivable human name is now associated with an asteroid, check here to see if you share your name with a minor planet!

90. Weblandarcade Offers five arcade games including Snake, asteroids, Solitaire, Tetris and Arkanoid clones. http://www.weblandarcade.com/

91. Guide To Space Astronomy It was once believed that the asteroids were the debris of a large planet, asteroids are placed into groups according to the type of orbit which they http://www.star.le.ac.uk/edu/comets/asteroids.html

92. My Astronomy Page Discusses composition and special features of the planets, moon, comets asteroids and extrasolar planets. http://www.angelfire.com/space/shawnamarie/astronomy.html

setAdGroup('67.18.104.18'); var cm_role = "live" var cm_host = "angelfire.lycos.com" var cm_taxid = "/memberembedded" Search: Lycos Angelfire 40 Yr Old Virgin Share This Page Report Abuse Edit your Site ... Next My Astronomy Page Imagine living out in space, perhaps on another planet or a spaceship. You would be able to meet different creatures that were previously unheard of and see colors that are unknown to mankind. Whether or not we’d actually be able to live in space, humans will definitely try to find a way to live on some kind of spacecraft outside the solar system. Astronomy is defined as the study of space beyond Earth. There are many different types of objects in the universe, many of which we haven’t discovered or have yet to understand. Our own solar system is composed of the planets and their satellites also known as moons, comets, meteors, asteroids, and, most importantly, the sun. Mercury is the closest planet to the sun in our solar system. At first, scientists thought that the planet was very similar to the moon, but it is hard for them to observe Mercury because it is so close to the sun. When the first pictures of Mercury were taken on March 29, 1974, astronomers did in fact find features similar to the moon. Scientists were surprised at how many craters the planet has, which are similar to the other ones on all the planets and moons in the inner solar system. The scientists also found cliffs on Mercury. The planet is 4878 kilometers in diameter and takes 88 days to completely orbit the sun.

93. Near-Earth Object Program Established in mid1998 to help coordinate, and provide a focal point for, the study of those comets and asteroids that can approach the Earth's orbit. http://neo.jpl.nasa.gov/

+ View the NASA Portal Artist's conception of the Hayabusa spacecraft. Hayabusa's Contributions Toward Understanding the Earth's Neighborhood Don Yeomans August 11, 2005 Beginning in early September 2005, the Japanese Hayabusa spacecraft will rendezv ous with near-Earth asteroid (25143) Itokawa . Itokawa, a 600 meter sized, potato-shaped asteroid, is named after Hideo Itokawa, a Japanese rocket pioneer. Although the primary objectives of the Hayabusa mission are to test new technologies, the mission will also provide a wealth of scientific returns. For the three month period from September through November 2005, the science instruments on board the Hayabusa spacecraft will undertake an intensive study of near-Earth asteroid Itokawa. After closely observing the asteroid for several weeks, a few pellets will be fired from the spacecraft at close range into the asteroid's surface and about a gram of the pellet's impact ejecta will be collected into a sample capsule. This capsule will then be brought back to Earth and parachuted into the Australia outback in June 2007 so that some of the asteroid's surface minerals can be studied in Earth-based laboratories. This will be the first asteroid sample return mission. FULL STORY NASA's Deep Impact Generates Its Own Spectacular Photo Flash Photo of Deep Impact Hitting Comet Tempel 1 July 4, 2005

94. CNN - NASA To Coordinate Detection, Tracking Of Asteroids And Comets - Jul. 15, CNN http://www.cnn.com/TECH/space/9807/15/asteroid.office/index.html

MAIN PAGE WORLD ASIANOW U.S. ... news quiz CNN WEB SITES: TIME INC. SITES: Go To ... Time.com People Money Fortune EW MORE SERVICES: video on demand video archive audio on demand news email services ... pagenet DISCUSSION: message boards chat feedback SITE GUIDES: help contents search FASTER ACCESS: europe japan WEB SERVICES: NASA to coordinate detection, tracking of asteroids and comets July 15, 1998 Web posted at: 11:09 AM EDT (1109 GMT) PASADENA, Calif. (AP) It will be up to NASA's Jet Propulsion Laboratory to detect, track and study asteroids and comets that could strike Earth. NASA's new Near-Earth Object Program Office will follow at least 90 percent of the 2,000 estimated Earth-approaching asteroids and comets that are at least two-thirds of a mile wide, the space agency announced Tuesday. Donald Yeomans, a JPL expert in computing asteroid orbits, will head the new office. "These are objects that are difficult to detect because of their relatively small size, but are large enough to cause global effects if one hit Earth," he said. In March, Yeomans and colleague Paul Chodas debunked a report from the International Astronomical Union that an asteroid was headed to within 30,000 miles of Earth's center and could hit in October 2028.

95. Asteroids Chart showing relative sizes, distance from the sun, inclination/eccentricity,shape, and color. Other charts showing position in the solar system. http://alumnus.caltech.edu/~marcsulf/asteroid/asteroid.html

Asteroids The following graph shows the number density of asteroids as a funciton of their distance from the sun. Note that there are peaks and throughs in this density due to exact periodic resonance with Jupiter. Also, the peak above 5 AU is due to the Trojan Asteroids. These asteroids are located approximately at the leading and trailing Lagrangian (i.e. Trojan) of Jupiter's Orbit. The following drawing is a real plot of the exact planar positions of all inner solar system asteroids with well determined orbits at a specific date in 1997. Note the Trojan Asteroids. Largest Asteroid Summary Rotation Mean distance Orbital Orbital Orbital Year of Radius period From Sun period eccen- Inclination Number Name discovery Discoverer (km) (hours) Albedo (AU) km) (years) tricity (degrees) Ceres G.Piazzi Pallas H.Olbers Vesta H.Olbers Hygiea A.De Gasparis Davida R.Dugan Interamnia V.Ceruili Europa H.Goldschmidt Eunomia A.De Gasparis Sylvia N.Pogson Psyche A. De Gasparis Euphrosyne J. Ferguson Cybele E. Tempel Juno K. Harding Bamberga J. Palisa

96. CNN.com - Study: Asteroids Shaped Mars Canyons - Dec. 5, 2002 CNN http://cnn.com/2002/TECH/space/12/05/mars.water/index.html

CNN Europe CNN Asia Languages Spanish Portuguese German Italian Korean Arabic Japanese On CNN TV Transcripts Headline News CNN International ... Special Reports SERVICES Video E-mail Newsletters CNNtoGO SEARCH Web CNN.com Study: Asteroids shaped Mars canyons Martian wet seasons may not have supported microbes By Richard Stenger CNN Valles Marineris, called the Grand Canyon of Mars, dominates the planet's southern highlands. Story Tools RELATED Science magazine Mars exploration (NASA) BIG DITCH Valles Marineris is more than four times longer and deeper than the Grand Canyon. The red planet trench is 2,500 miles long and up to four miles deep. (CNN) The authors of a new study say that while enormous surges of water carved out sprawling networks of valleys on Mars eons ago, the young red planet was hardly a steamy greenhouse with long-lasting oceans, as some scientists have theorized. Researchers with NASA and the University of Colorado say the canyons most likely were formed during brief bouts of torrential rains, when asteroid and comet chunks collided with Mars and unleashed frozen water. They propose that the flurry of impacts produced periodic layers of hot debris that blanketed the surface, warming it above the freezing point of water for decades or centuries at a stretch.

97. Asteroids - Presented By Addicting Games Dodge the asteroids while flying in your UFO. Use boost to avoid them quickly. http://www.addictinggames.com/asteroids.html

Asteroids Add to Favorites Send to a Friend Game Information Author: KyleRothman.com Description: Dodge the asteroids while flying in your UFO. Use boost to avoid them quickly. Instructions: ARROW KEYS to move. SPACE for boost. Size: 29 KB Contact Privacy Game Developers Unsubscribe

98. EYEONE - Free Online Java Games, Jeux Java Gratuits, Gratis Java Spill Java based games including Void (asteroids), Blocks (tetris), Abselute Zero (arcade), Tix, Castrol Racing, Overflow. Registration required. http://www.eyeone.com/

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99. SPACE.com -- Asteroids Data Sheet Scientists consider asteroids to be minor planets some are hundreds of miles The vast majority of asteroids are small, compared with a large one like http://www.space.com/science/solarsystem/asteroids-ez.html

advertisement Asteroids Data Sheet posted: 02:57 pm ET 11 November 1999 Orbits Origin Threat of impact Quick quiz: How many planets orbit our Sun? If you said nine, you're shy by several thousand. Scientists consider asteroids to be minor planets - some are hundreds of miles wide (and seldom round). Orbits Most, but not all, orbit the sun in an asteroid belt between Mars and Jupiter. The huge gravitational pull of Jupiter accelerated these asteroids to more than three miles per second too fast to prevent violent collisions. Otherwise, they might have joined up to form "real" planets. When asteroids collide, fragments sometimes are sent on a collision course with Earth and become meteors. Size and makeup The vast majority of asteroids are small, compared with a large one like Ida, this 32-mile-long chunk of stone and iron that was photographed in 1993 by the Galileo spacecraft. Though we normally think of asteroids as crater-makers, they are typically pockmarked with their own impact craters. Scientists divide asteroids into two groups, based on how they appear in infrared images: light and dark. The lightest-looking asteroids are rocky bodies with lots of iron and nickel, and they resemble lunar rocks. The darkest asteroids have high quantities of hydrated minerals and carbon.

100. IOTA Member Site was established to encourage and facilitate the observation of occultations and eclipses. It provides predictions for grazing occultations of stars by the Moon and predictions for occultations of stars by asteroids and planets, information on observing equipment and techniques, and reports to the members of observations made. http://www.occultations.org/

Site last updated on Friday, August 12, 2005 at 11:23 PM Welcome to IOTA, the International Occultation Timing Association, Inc. IOTA was established to encourage and facilitate the observation of occultations and eclipses. It provides predictions for grazing occultations of stars by the Moon and predictions for occultations of stars by asteroids and planets, information on observing equipment and techniques, and reports to the members of observations made. IOTA is a tax exempt organization under sections 501(c)(3)- Scientific Research and 509(a)(2)-Public Education of the Internal Revenue Code USA. Get Your Official Patch! (Click for a larger view.) The details of the 2005 IOTA Annual Meeting have been announced. Full information can be found here Occultation Newsletter (updated Wednesday, August 3, 2005 at 12:23 PM This is a secured section for Subscribers only. See below for how to become a subscriber. If you do not have your user name and password, click here Member Section (updated 2002 February 17 This is a secured section for Members only.

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