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Essay asteroid hitting the earth
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The Impact of an Asteroid on Earth
Asteroids sling through space, celestial debris of diverse origins, leftovers from the formation of the solar system, broken offshoots of parental asteroids or comets that have lost their glow. But if an asteroid were to smash into Earth, the result would mean
a global catastrophe and life on our Planet could come to an end. The explosion
would approach that of a million megatons of TNT- sixteen hundred times greater than the most powerful nuclear weapon ever tested (Barnes-Svarney 234).
"Asteroid" is Greek for "starlike". They were given this name because early telescopes could see them only as points of light. The asteroid belt, between the orbits of Mars and Jupiter, contains tens of thousands of asteroids with diameters of a mile or more. The larger ones are spherical, but smaller ones, their cohesion greater than their gravity, are extremely irregular. There is no lower limit to asteroid size because they grade down to tiny rocks and particles of dust No asteroid is big enough to hold an atmosphere (Gardner 5).
Almost all asteroids are confined to the asteroid belt, but many wander far beyond the orbit of Jupiter, and others plunge inward past the orbit of Venus. It is estimated that more than a thousand asteroids at least a mile wide are "Near Earth Objects" (NEOs). Some are three or more miles wide. They pose a monstrous threat to humanity if they come close to Earth or hit it (Gardner 16).
According to a report sponsored by NASA in 1992, "The Spaceguard Survey: Report of the NASA International Near-Earth Object Detection Workshop", the hazards
from asteroids can be divided into three broad categories that depend on the size and/or kinetic energy of the impactor (Bar...
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...ements and assess impact probabilities (Anonymous I 1)
In the end. asteroids will be either our nemesis, causing problems we have never faced before or they will be our saviors in space. They will provide us with resources to carry on throughout the solar system end beyond.
Bibliography:
Anonymous, Blast It! (Mavbe Not). Science World. October 19, 1998: 11+
Barnes-Svarney, Patricia. Asteroid. Earth Destroyer or New Frontier. New York;
Plenum Publishing Corporation, 1996.
Gardner, Martin. Near-Earth Objects: Monsters Of Doom. The Skeptical Inquirer.
Jul/Aug. 1998: 16-19
Goldmart, Stuart J. The Most Dangerous Rocks In Space. Sky and Telescope; June,
1998; 33+
Gottschalk, Mark Allan. Engineers Lead The Hunt For Killer Asteroid. Design News,
September 21 1998: 35+.
Morrison, David. Target Earth. Astronomy, October 1998: 34+.
The first H-bomb was detonated with the force of ten megatons, more that several hundred times the power of the A-bomb.
about to take place. All a meteor is, is a chunk of rock of that is being
The Kuiper Belt is an icy-bodied disc shapes area of the Solar System. Kuiper Belt has a circular shape, to be exact, it is a curved plane. It is over 4.5 to 7.4 billion kilometers from Sun. This is roughly 30 to 50 times the distance of Earth from Sun. The Kuiper Belt has been said to resemble the Asteroid Belt that lies between Mars and Jupiter. The difference between the Kuiper Belt and the Asteroid Belt is that the bodies are icier due to their distance from the Sun. The Kuiper Belt objects includes Pluto and other comets that orbit beyond Neptune. Most Kuiper Belt objects are made up of frozen volatiles such as methane, water and ammonia. In 1950 astronomer Gerald Kuiper predicted the existence of the Kuiper Belt and the find was named
Armageddon begins by showing the destruction of the Earth by an asteroid 65 million years ago, when the dinosaurs inhabited the earth. According to the narration, the asteroid is said to have been six miles wide, with the power of 10,000 nuclear weapons. The after effects were trillions of tons of dirt and rock thrown into the atmosphere, creating a blanket of dust that the sun was unable to penetrate for 1,000 years. The narrator explained that it happened once, and that it would happen again, it was only a matter of when.
The universe is a shooting gallery and earth is the bullseye. The earth is always under threat of a doomesday asteroid that will wipe out civilization. There are over one thousand asteroids traveling toward earth and only three quarters are accounted for. Where are the other one forth? No one knows because the government doesn't fund NASA astrologists enough to cover the astroids. Just one impact could end civilization as we know it. No matter where it hits everything would die, even bacteria. To give an estimate how much is spent on asteroid detection. It is said to be less than the cost to operate a single McDonald's franchise. Total disaster would occur no matter where the asteroid hit. Land, sea it doesn't matter. Ocean impact would create a number of things. First, a Tsunami(tidal wave) would be created on impact. The wave would be hundreds for feet high traveling hundreds of miles per hour. It would start to slow down crashing ashore through all coastal city. Then, finally wash up hundreds for miles inland. " The mid-Atlantic Ocean impact ranging from 400 meters to 5 kilometers in diameter. This would generate a tsunami that would sweep across the upper East Coast of the United States to the Appalachian Mountains."(Gottschalk 1) The blast of the impact would equal a 300 gigaton blast of T.N.T. Also, 2.4 seconds after impact, a small fireball with a temperature of 5000'C would sweep across long island. A land fall strike would cause total divistation. The asteroid would create a earth trembling impact causing earth quakes around the world. The binding flash will show impact and the crater would be twenty miles across. Then, a blanket of dust and debris would blanket the earth and block the sun's light. This would occur for hundreds of years and the climate would be disrupted. Global killer no matter where it hits. The end of the world is only 28 years, 10 months, 19 days, 1 hour, 45 minutes, and 39 seconds away. An asteroid named XF11 is on route to hit earth directly. October is the month and 2038 is the year. Discovered by Jim Scotti on December 6, 1997 while looking at star with the Arizona Spacewatch Group. The asteroid "is predicted to pass at a rather comfortable distance of about 600,000 miles (about 960,000 kilometers) in 2028," "reported Dr. Donald K.
A successful space program is needed in America, and here’s why: we are losing our grip on the title of the world superpower and a new age of economics and politics is coming faster than we are prepared for. To be prepared for this new age we need the funds, which can be found in our space. The most deadly of those threats: asteroids. Don Yeoman, an employee at the Jet Propulsion Lab, a NASA facility, tracks over 600,000 asteroids every day.
On the other hand, Pluto is larger than the other 40 known moons in the solar system. There is no scientific reason to arbitrarily distinguish between planets and asteroids based on the sizes of the moons that happen to be present in a planetary system.... ... middle of paper ... ... 78, No. 1, pp. 113-117.
Asteroids can be found orbiting the Sun in a belt between Mars and Jupiter; this is called the Asteroid belt or Main belt. The asteroid belt has been said to probably contain millions of asteroids that are all different. There are more than 20,000 numbered asteroids. Some times asteroids get knocked off the asteroid belt. As asteroids revolve around the Sun in elliptical orbits, Jupiter’s gravity and getting to close to Mars or another asteroid can change an asteroids path, this could send an asteroid out of the asteroid belt and into space across the orbits of other planets. An example of asteroid orbits changing is Mar’s moons Phobos and Deimos. These were asteroids that went to close to Mars and got caught in its orbit.
...eaky fast reflexes needed to avoid an asteroid. Asteroids have collided with each other before, but it is super rare considering how far apart from each other they are.
Human fascination with the stars is as ancient as Babylonians and has been suggested to be older than Stonehenge. From “be fruitful and multiply” to “live long and prosper,” the instinct to protect and propagate the species has manifested in religion, art, and the imaginations of countless individuals. As human understanding of space treks out of the fantastical and into the scientific, the realities of traveling through and living in space are becoming clearer. Exploring, investigating, and living in space pose an expansive series of problems. However, the solutions to the problems faced by mankind's desire to reach beyond the horizon, through the night sky, and into the stars are solutions that will help in all areas of life on Earth.
When it hit the Earth, the asteroid left an enormous crater that measured 24 miles deep and 125 miles wide (Erdman). Just the impact of the asteroid destroyed the forests and landscape of the majority of North America due to its massive shock wave (Erdman). Many species went extinct when the asteroid hit, these species include dinosaurs, ammonites (certain ocean dwelling creatures), pterosaurs, and some plant groups dinosaurs, ammonites (mollusks related to the octopus and the chambered nautilus), pterosaurs, and certain plant groups. Although devastating, the asteroid did not wipe out all of the animals on Earth, it didn’t exterminate fish, frogs, turtles, birds, mammals and crocodilians (Erdman). These animals survived and evolved into the animals that exist today.... ...
Although it is impossible to rewrite history, we still have to be careful to prevent a catastrophe like the asteroid said to have hit the earth sixty five million years ago. If there is ever a scare of an asteroid as big as the Alvarez Asteroid, one way of preventin...
Space debris are all manmade objects, including their parts and fragments, whether their owners can be recognized or not, in Earth orbit or re-entering the dense layers of the atmosphere that is worthless with no reasonable bated breath of their being able to assume or resume their proposed functions or any other functio...
These miscellaneous pieces, ranging from the size of a marble to a softball, travel at speeds up to 17,500 mph. The rising population of space debris increases the foreseen danger to all space vehicles, but especially to the International Space Station, space shuttles and other spacecraft with humans aboard (NASA, 2012).