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  • Hale Bopp Comet
    2,030 words
    Comets Have you ever looked up in the sky and seen a little ball creeping by? If so, did you wonder what it was? That little ball is called a comet. Comets are small, fragile, and irregularly shaped. Most are composed of frozen gas. However, some are composed of frozen gas and non-volatile grains. They usually follow very strict paths around the sun. Comets become most visible when they cross the sun. This also applies to people who view comets with telescopes. When a comet gets near the sun it ...
  • Orbit And The Comet
    839 words
    The Hale Bopp Comet As I am sure all of you know, we have recently been able to see a new but not permanent addition to the night sky. This addition is known as Hale-Bopp, a comet that is about 122 million miles (about 1.3 times the distance of the sun to the earth) from the earth and is approximately 25 miles wide. Hale-Bopp was discovered on July 23, 1995 by two scientists named Alan Hale in New Mexico and Thomas Bopp in Arizona. This is the first discovery for both of them, although Alan Hale...
  • Comet
    420 words
    The article summarized below is from THE NATIONAL GEOGRAPHIC (issue Dec. 97) by William R. New cott. It tells about how comets are important and their effect on earth and its people. Comets are leftover scrubs of material that did not make it to planet hood in the events creating our solar system. They orbit in a perpetual Deepfreeze until some subtle gravitational nudge upsets the delicate balance. The Great Falls begins. First a snowball drifts towards the sun and steadily accelerates. As sola...
  • Orbit Of Planets And Comets
    2,407 words
    COMETS The first written records of comets date back to nearly 3,000 years ago from China and Europe. The accounts of these comets were believed to be the causes of terrible events that occurred afterwards. In more recent times, however, astronomers have found out what they really are. A comet is basically a mixture of ices, from both water and frozen gases, and dust. They have also been given the names "dirty snowballs" or "icy mud balls". The typical comet is less that 10 kilometers across. Th...
  • Nucleus Of A Comet
    294 words
    Comets A comet is generally considered to consist of a small, sharp nucleus embedded in a nebulous disk called the coma. American astronomer Fred L. Whipple proposed in 1949 that the nucleus, containing practically all the mass of the comet, is a "dirty snowball" conglomerate of ices and dust. Major proofs of the snowball theory rest on various data. For one, of the observed gases and meteoric particles that are ejected to provide the coma and tails of comets, most of the gases are fragmentary m...
  • Comet Heads And Tails
    481 words
    COMETS Comets have been witnessed ever since man has been speculating about objects in the nighttime sky and appear in records from the beginning of recorded civilization (Schweighauser 20). Comets are made up of four distinct features. The first is the nucleus. The nucleus is made up of frozen gases, mostly water vapor with lesser amounts of carbon dioxide and carbon monoxide, and imbedded in the frozen gases are interplanetary dust and tiny fragments of stony and metallic meteoric material. So...
  • Halley's Comet
    410 words
    Halley " comet Comets have amazed, interested, and driven scientists to study them often. Comets like the Hale-Bopp have been seen by millions of people. Since the discovery of comets, scientists, astrologers, or and even your next door neighbor have been interested in discovering or studying comets. Like Halley's Comet which has had a real impact on the history of comets. Halley's comet put on bright shows for the planet Earth ever since 204 BC, maybe even 1059 BC. Its most famous appearance wa...
  • Comet Hyakutake And Comet Hale Bopp
    509 words
    ExtrasMeteorsA brilliant meteor, called a fireball, may weigh many kilograms, but even a meteor weighing less than a gram can produce a beautiful trail. Some of these visitors from space are large enough to survive (at least partially) their trip through the atmosphere and impact the ground as meteorites. Fireballs are sometimes followed by trails of light that persist for up to 30 minutes; some, called bolides, explode with a loud thunderous sound. Meteoroids The term meteor comes from the Gree...
  • Comet Hit Jupiter In Our Lifetime
    1,610 words
    Robert Pike English 111, Professor Ryan Barbour 10 December 1997 Meteors and Comets and Their Impact on Our Planet How much do we know about our planet and its natural history Why did the great dinosaurs disappear All of the answers are now starting to come to light. Scientist have speculated that Earths history and evolution may have been more violent than we first thought. If you can, image a large chunk of rock hurtling through space heading toward Earth on a collision course and watching it ...

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