Asteroids asteroids. On the first day of January 1801, Giuseppe Piazzi discovered an object which he first thought was a new comet. Kowal 1977 More about asteroids. http://www.gly.bris.ac.uk/www/teach/virtrips/nineplanets/asteroids.html
Extractions: Asteroids O n the first day of January 1801, Giuseppe Piazzi discovered an object which he first thought was a new comet. But after its orbit was better determined it was clear that it was not a comet but more like a small planet. Piazzi named it Ceres, after the Sicilian goddess of grain. Three other small bodies were discovered in the next few years (Pallas, Vesta, and Juno). By the end of the 19th century there were several hundred. S everal hundred thousand asteroids have been discovered and given provisional designations so far. Thousands more are discovered each year. There are undoubtedly hundreds of thousands more that are too small to be seen from the Earth . There are 26 known asteroids larger than 200 km in diameter. Our census of the largest ones is now fairly complete: we probably know 99% of the asteroids larger than 100 km in diameter. Of those in the 10 to 100 km range we have cataloged about half. But we know very few of the smaller ones; perhaps as many as a million 1 km sized asteroids may exist. T he total mass of all the asteroids is less than that of the Moon Ida and 951 Gaspra were photographed by the Galileo spacecraft on its way to Jupiter. The
Our Solar System An overview of the sun, the nine planets, asteroids, comets, and other links. http://www.geocities.com/zinazora/solarsystem/index.htm
Extractions: Some scientists think the Solar System began as a cloud of dust and gas. Gravity pulled the cloud in and out, making it smaller and dense (thicker). As it shrank, the cloud heated up and the Sun formed. Some of the clouds flattened out and shaped into a disc, which spun around the new Sun. Particles of gas and dust within the disc bumped each other, which made them stick together and form large lumps. These lumps grew into planets, all of them revolving around the Sun. One group of rocky lumps never grew into planets and these are what we call "asteroids". All information and pictures are courtesy of NASA.
Asteroids.Zona De Juegos Online Translate this page asteroids si lo que te gusta es disparar, este es tu juego, bastante divertido . Juegos para bajar, además juegos online a decenas de Juegos gratis. asteroids. http://www.publispain.com/flash/Asteroids.htm
Free Online Arcade Games From Zap Arcade Online versions of classic arcade machine games including Space Invaders, Defender, Pong, and asteroids. http://www.zaparcade.com/
Extractions: The Arcade Games section of this site contains links to what we think are the best free online arcade games on other sites. This is a truely fantastic selection of online arcade games, and the quality of some of these arcade games is oustanding! We also have a Crediplay section to our site. This section contains a selection of storming free online arcade games which are a total joy to play! The games are of course completely free to play, although you have the option of playing in an online tournament for a nominal entrance fee in which you can win cash prizes. Entering an online tournament is exciting, and gives a whole new thrill to your online arcade gaming experience! To play the Crediplay online arcade games for free all you have to do is register, which only takes a few seconds because all you need to give is your name and email address. You can then play the games straight away. If you want to experience the thrill of playing in an online arcade game tournament for a chance to win a cash prize you will need to enter some further details, but full instructions are given on the site.
Universe Today - Asteroids Change Colour With Age asteroids Change Colour With Age. The team used data from the Sloan Digital Sky Survey (SDSS), which has accurate colour measurements on 100,000 asteroids. http://www.universetoday.com/am/publish/asteroids_change_colour_age.html
Extractions: Summary May 20, 2004 ) A team of astronomers led by the University of Hawaii's Institute for Astronomy have found evidence that asteroids change colour as they get older. The team used data from the Sloan Digital Sky Survey (SDSS), which has accurate colour measurements on 100,000 asteroids. They found that asteroids turn redder over time because of the constant bombardment of radiation from the Sun and cosmic rays. With more research, astronomers should soon be able to judge the age of an asteroid just by its colour. David Nesvorny, a team member from the Southwest Research Institute in Boulder, CO, used a variety of methods to estimate asteroid ages that range from 6 million up to 3 billion years. Accurate color measurements for over 100,000 asteroids were obtained by the Sloan Digital Sky Survey (SDSS), and catalogued by team members Zeljko Ivezic from the University of Washington and Mario Juric from Princeton University. Robert Whiteley, a team member from the USAF Space and Missile Systems Center in Los Angeles, points out that the age-color correlation we found explains a long-standing discrepancy between the colors of the most numerous meteorites known as ordinary chondrites (OC) and their presumed asteroid progenitors. Meteorites are chips of asteroids and comets that have fallen to Earths surface.
OpenUniverse: A Free Space Simulator open source Win95/98/NT/2000 or Unix/Linux OpenGL Newest NASA data creates a fast 3D display of our home solar system, 25000 stars, galaxy, planets, moons, asteroids and even controllable spacecraft. http://www.openuniverse.org
Extractions: Nov 14, 2001 : Big news (kinda). I´m pretty sure most of you have noticed OU hasn´t been updated for a long long time. We´ve decided not to waste time and focus our effort in helping Chris Laurel out. He´s doing an amazing job with Celestia and we´ll try to contribute as much as we can. I´m not saying OU is dead but it´s very unlikely you´ll see any update soon. WHAT ARE YOU WAITING FOR? GO DOWNLOAD CELESTIA Sep 12, 2001 : Hello, as Slashdot has put it before: Normally we don't post this. But in this case... We (all of us behind OU) state our solidarity, support and respect to the people in the United States, New York and Washington. Our thoughts are with the killed, the injured and the shocked. This is the time for the civilized world to stand together. In these hours we are all americans. Axel Jul 24, 2001 : Hi folks! This is another incredible thing for Raul and me. We reached 150.000 pageviews (= visitors in our case) until we started OpenUniverse. We'd like to thank you. Axel Jun 29, 2001
KidsAstronomy.com Asteroid Game Use the keyboard controls described below to maneuver your ship, destroying as many asteroids as you can while avoiding collision with them. Large asteroids. 25. http://www.kidsastronomy.com/asteroid/
Extractions: Wait for the applet and sounds to finish loading, this may take a minute or two. The game screen will show "Game Over - 'S' to Start" once everything is ready. In the meantime you can review the instructions below. Note: If the game doesn't seem to be responding to key presses, click your mouse pointer in the game area. 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 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.
Extractions: Satan's Secret History and the Monuments of Mars The Bible describes Satan, commonly called Lucifer, as having had a place in heaven. Where in heaven did satan / lucifer dwell, and what happend to this being? Our research suggests satan, or lucifer, dwelt in a literal location in the heavens... which when destroyed left the debris we now see as asteroids and comets. O Lucifer, son of the morning! " ... is Shoemaker- Levy 9 an asteroid or a comet? This is an issue being debated in the journals right now. In the exploded planet hypothesis there is no difference. Asteroids and comets are the same thing, except that comets were thrown out to a greater distance, so by being away from the Sun for the few million years they preserved their volatiles, their dust and gas, whereas asteroids have long since had the dust and gas blown away by solar radiation pressure, because they're so close to the Sun for millions of years. Other than that there is no difference. They're both debris clouds [of an exploded planetary parent body] ... " Satellites sent to Mars in 1976 collected information concerning the geologic nature of Mars, and it's atmosphere. The images from the orbiters mapping sequence made it clear that Mars had experienced nearly unimaginable catastrophic episodes.
The Atari Library - Atari Arcade Systems Information about Battlezone, Tempest, Centipede, Missile Command, and asteroids. http://www.netlink.co.uk/users/markn/Arcade/arcasys.html
Sse.jpl.nasa.gov/features/planets/asteroids/asteroids.html Rudy Rucker s version of the Mike Hall asteroids AppletMike Hall s asteroids Applet,. Altered by Rudy Rucker. The asteroids Applet, or, What I Did During the Millennium s Sunset Play the Game! http://sse.jpl.nasa.gov/features/planets/asteroids/asteroids.html
Asteroids Comets Meteors (ACM) A meeting bringing together scientists studying small solar system bodies. Dates and links of past meetings. http://www.astro.uu.se/planet/acm_eng.html
Mike Hall And Rudy Rucker's Asteroids Applet background. C toggles the collision feature of having the asteroids bounce off each other. asteroids. The asteroids run away from the bullets. http://www.mathcs.sjsu.edu/faculty/rucker/asteroids/asteroidsj1jar.html
Asteroids For PlayStation At GameSpot Coverage of the PlayStation version, with review, screen shots, and FAQs. http://www.gamespot.com/ps/puzzle/asteroids/
Asteroids - Wikipedia asteroids. From Wikipedia, the free encyclopedia. This page is about the computer game. For the planetlike space object, see asteroid. asteroids screenshot. http://en.wikipedia.org/wiki/Asteroids
Chapter 20: Meteorites And Asteroids Chapter 20 Meteorites and asteroids. There are now about 10 radarobserved binary near- Earth asteroids, about 1 in 6 of NEAs larger than 200 m in diameter. http://www.williams.edu/Astronomy/jay/chapter20_etu6.html
Extractions: Dr. Donald Yeomans' Leonids Site Lowell Observatory press release, May 20, 2004 Flagstaff, AZ The ongoing search for near-Earth asteroids at Lowell Observatory has yielded another interesting object. Designated 2004 JG6, this asteroid was found in the course of LONEOS (the Lowell Observatory Near-Earth Object Search) on the evening of May 10 by observer Brian Skiff. "I immediately noticed the unusual motion," said Skiff, "so it was certain that it was of more than ordinary interest." He quickly reported it to the Minor Planet Center (MPC) in Cambridge MA, which acts as an international clearinghouse for asteroid and comet discoveries. The MPC then posted it on a Web page for verification by astronomers worldwide. It happened that all the initial follow up observations, however, were obtained by amateur and professional observers in the Southwest US. The additional sky positions measured in the ensuing few days allowed an orbit to be calculated. The official discovery announcement and preliminary orbit were published by the MPC on May 13. This showed that the object was located between Earth and Venus (presently the very bright "evening star" in the western sky). In addition, 2004 JG6 goes around the Sun in just six months, making it the asteroid with the shortest known orbital period. Ordinary asteroids are located between the orbits of Mars and Jupiter, roughly two to four times farther from the Sun than Earth, taking several years to go around the Sun.
The Solar System Detailed guide to the sun and planetary system, asteroids, comets, meteor hits on Earth and the other planets. http://www.eoascientific.com/prototype/newcampus/space/space.html
Extractions: General Science Earth Ocean Atmosphere ... Space Credits EOA Home Product samples provided by EOA Scientific Systems To purchase products, visit ScienceSchoolhouse.com Earth Science Glossary The Solar System Planets The nine planets of our solar system formed at regular distance intervals from the sun. Try and arrange the planets according to their relative distance. Mercury, Venus, Earth and Mars are in one interactive as the inner planets. Jupiter, Saturn, Uranus, Neptune and Pluto are in a second interactive Weight Mass Volume Density Gravity Energy Interactive (The farm) ...more Matter and Energy This project is very good. Each of the following pages contains a set of links for that topic. Space Science Links The Internet Campus is an interactive multimedia science learning web site of:
Extractions: (Acrobat pdf format) A Description of the Lab: Purpose: To introduce students to the techniques that astronomers use to discover asteroids and to measure their coordinates in the sky. To show students what is meant by parallax and how parallax is measured. This exercise incorporates software designed to find asteroids using digital images of the sky taken at different times, along with software designed to measure the precise positions of stars on images. It also includes several digital images of asteroids taken at research observatories and documentation for both the students and the instructor. In the first part of the exercise, students view pairs of images of the sky, align them so the stars overlap, and "blink" them to highlight moving objects...asteroids. Once an asteroid is identified, the software can display a chart of the star field around the asteroid by calling up positions of stars from a reference catalog (a selection of the Hubble Guide Star Catalog included with the software). By identifying at least three reference stars from the catalog with stars on the digital images, the software can then proceed to determine the astronomical coordinates of the asteroid (right ascension and declination) to a precision of about 0.1 seconds of arc. Measurements of the asteroid coordinates on several images taken at different time yields the angular speed of the asteroid.
Novel Games - Free Flash Game: Asteroids Break the asteroids into small pieces until you destroy them. Beware of the UFO s also! Visit us at http//www.novelgames.com. http://www.novelgames.com/freeflashgames/asteroids/popup.php?siteid=99
