You are welcome to search the collection of free essays and research papers. Thousands of coursework topics are available. Buy unique, original custom papers from our essay writing service.

47 results found, view free essays on page:

  • Nasa International Near Earth Object Detection Workshop
    1,055 words
    Asteroid impact The solar system is filled with a barrage of comets and asteroids. Some of these cross the paths of the other planets as well as the earth's. The earth travels around in a swarm of projectiles. Comets and asteroids can and do strike the surface of the earth. Evidence from spacecraft exploring the outer planets and their satellites reveal the presence of craters scaring their surfaces. These help to support the idea that all the planets are under constant attack by these flying pr...
  • Every Asteroid Close To Our Planet
    1,239 words
    Asteroids In our solar system today there are over 30,000 asteroids flying around in all direction colliding with other asteroids and planets, without a care about the destruction they might convey. Our planet Earth is caught right in the middle of all of this action and is liable to entire extinction of any life forms on the planet if a large enough asteroid crosses its path. Any single asteroid has the possibility to erase thousands of years of history and wipeout the human race, as we know it...
  • Neptune's Position
    299 words
    The Discovery of Neptune Neptune was discovered in September 1845. It was discovered by means of mathematics before being seen through a telescope. It began in 1843 when John Adams, a young English astronomer and mathematician, began working to find thew location of the unknown planet. Adams predicted the planed would be about 1.6 billion kilometres farther from the sun then Uranus. That's when he completed his work in September 1845. Also Urbain Leverriar, unknown to Adams, began working on the...
  • Scientific Experiment About The Future Of Trantor
    347 words
    Gaal Dornick, a mathematician, goes to another planet called Trantor to meet Dr. Hari Seldon who has invited him to Trantor to join his team for an scientific experiment about future of Trantor. Trantor has a population of over 40 billions and there is metal all over it as if you go above it you see a glob made of metal. The way that the author explains the planet Trantor makes you feel lucky for your self for living on earth with a lot of green plans and other alive things around you. When you ...
  • Questions Of Life On Other Planets
    1,042 words
    Are we alone in this universe Does life exist in other planets These are the kind of questions that are yet to be answered. Within the last 100 years scientists have shown remarkable advancement in space science. Millions of dollars are gone and a lot of time has been spent to answer the above questions. Space telescopes have brought us pictures of unknown planets that might have some indication of life like that of the Earth. But we are unfortunate to say that out of the nine neighbor planets, ...
  • Wolf Of Planet X
    523 words
    Did you know that PLANET X will pass through our solar system again in 2003 after approximately 3660 years of absence on its regular orbit? Like most people you probably do not know this. The knowledge has been kept away from the public for several reasons, one of which is to avoid causing panic among the world's population. #1 question -- Will you be in a safe area? Will you be ready or do you care for your loved ones lives? We live in a binary system. Our suns dark twin lies toward the Orion g...
  • Earth's Magnetic Field
    748 words
    Did u know that our planet, Earth wasn't always thought of as a planet? Until the sixteenth century when Copernicus figured out that the Earth was another planet, which revolved around the sun, Greek astronomers thought the Earth was the center of the solar system. Also Earth is the only planet that its name didn't come from Greek / Roman mythology. When earth was first discovered, astronomers were only able to study it with out spacecraft. It was not until the twentieth century that we had maps...
  • Closest Terrestrial Planet To The Sun
    1,370 words
    Terrestrial and Jovian Planets Our solar system contains nine planets, which are broken down into 2 classifications known as terrestrial planets and jovian planets. The terrestrial planets are composed primarily of rock and metal. They also generally have high densities, slow rotation, solid surfaces, no rings, and few satellites. These planets include Mercury, Venus, Earth, and Mars. On the other hand, the jovian planets are composed primarily of hydrogen and helium. They generally have low den...
  • Earth's Atmospheric Gasses In Their Proportion
    2,611 words
    The Gaia Hypothesis The Gaia Hypothesis is a hypothesis that was developed by James Lovelock and Lynn Margulis in the late 1970's. James Lovelock is a British scientist, an atmospheric chemist, and also an inventor with an education in human physiology. Lynn Margulis was a microbiologist during the 1970's at Boston University. She also originated the theory of the eukaryotic cell arising as a result of endo symbiotic cell capture. This theory is the one that gave her the credibility to advance t...
  • Sun's Force Of Gravity And The Planets
    1,068 words
    The Effects of Gravity There are some people who worry that when they " re outside, if they don't keep a good grip on the ground, they " ll just go flinging off into space. They needn't really worry about this, because gravity generally keeps that sort of thing from happening. The thing is, no one is really sure what causes gravity, but the effects have been studied by many physicists and astronomers. Three of the more obvious effects of gravity are things falling down, weight, and the the moon ...
  • Planet Of Venus
    743 words
    Venus is the second planet from the sun and the sixth largest. Venus' orbit is the most circular of any planet, with an eccentric y of less than 1%. Venus, perhaps because it is the brightest of planets known to the ancients, Is named after the Greek goddess of love and beauty. The planet of Venus has been known since prehistoric times and is the brightest object in the sky with the exception of the sun and the moon. Venus' rotation is somewhat unusual in that it is both very slow (243 Earth day...
  • Earth To Sun Ratio
    481 words
    The earliest known measurement from the earth to sun was in 200 B.C. Aristarchus of Samos, a man of astronomy and Mathematics, made this discovery. He believed the Earth revolved around the Sun. Aristarchus of Samos used what is known today as right-angle trigonometry. By connecting Earth to Moon, Moon to Sun, and Sun to Earth, one forms a right triangle as shown below. The measure of angle "a" is 90^0; an observer on Earth can then measure the angle measure of "b". Then for one to find the dist...
  • 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 ...
  • Nine Planets In Our Solar System
    534 words
    Sara Bartolo 11/20/00 Grade 4 Solar System I. Pre- Instruction Phase 1. NYS Standards: ELA Standards 1, 2 & 4- Reading, Writing, Listening, and Speaking for -information and understanding -literary response and expression -social interaction MST Standard 6- Understand the relationships and common themes that connect mathematics, science, and technology and apply the themes to these and other areas of learning Social Studies 3- Use a variety of intellectual skills to demonstrate their understandi...
  • Copernicus And Ptolemy Astronomy
    415 words
    Copernicus and Ptolemy Astronomy is one of the oldest sciences. Two of the greatest astronomers of all time are Claudius Ptolemy and Nicolaus Copernicus. These men had very different ideas and theories. Claudius Ptolemy was born around 100 A.D. and died around 165 A.D. He was considered one of the greatest Greek astronomers and geographers of ancient times. Very little is known about him, but he did his observations of astronomy in Alexandria, Egypt. His works are known as Almagest, which means ...
  • Temperature At The Planet's Surface
    2,553 words
    Our understanding and our modern perception of our solar system, the Milky Way, has been drastically reshaped from the corresponding perception of only a few hundred years ago. Our Solar System, the Milky Way is probably about 4-5 billion years old. Only in the last 400 years or so have we realized that the earth is not the "center", and that in the Universe alone there is an immense 200 billion "Suns" in a galaxy like our own. Although the origin of the solar system is uncertain, most scientist...
  • Gottesman Hall Of Planet Earth
    439 words
    Over this passed weekend I took some time out with a friend of mine and visited the museum of natural history in New York. While I was there I wanted to see as much as I possibly could because I have never been to this particular museum. More importantly, I tried to focus my attention mainly on those exhibits that would most directly pertain to the earth science course I am currently enrolled in at Molloy College. The purpose of this was so that I could possibly get some good visual examples of ...
  • Southern Hemisphere Of The Planet
    292 words
    Mandal, the most prominent planet of our Navgrahas, represents anger, aggression, ambition, courage, and roguery. For the Greeks it has been the God of War. Naturally the two most ancient civilizations of our planet have always paid due respect to the red planet, Mars. Its closest encounter with Earth in the past 60,000 to 100,000 years-occurring on 27th of this month-has stirred many a calm waters in our world. From the scientific community to the amateur sky gazers, every one suddenly seems to...
  • Ptolemy's Model Of Planetary Motion
    743 words
    Claudius Ptolemy was a citizen of the Roman Empire, who lived around the year 100 AD. Ptolemy was influential in the fields of mathematics, astronomy, and geography. In astronomy Ptolemy relied somewhat on the theories and observations of previous astronomers, such as the geocentric model designed by Aristotle; to create his own model of our solar system. Ptolemy's model of planetary motion was one of his greatest contributions to the science of astronomy. The model (seen in 1.1) was based on a ...
  • Geological Events And Earth's Geological History
    453 words
    Geology, study of the planet earth, its rocky exterior, its history, and the processes that act upon it. Geology is also referred to as earth science and geoscience. The word geology comes from the Greek geo, "earth", and logia, "the study of". Geologists seek to understand how the earth formed and evolved into what it is today, as well as what made the earth capable of supporting life. Geologists study the changes that the earth has undergone as its physical, chemical, and biological systems ha...

47 results found, view free essays on page: