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.
Asteroids are large or small chunks of rock and metal flying around space up to speeds of 80 000 km/h. These chunks were believed to have formed millions of years ago during the "big bang". These rocks didn’t form any planets and were stuck floating around space on their own or in the gravitation of the asteroid belt. This asteroid belt is approximately 300 million miles from the Sun and it contains thousands of asteroids; some being miles in diameter.
Another theory of the formation of asteroids is that a planet between Mars and Jupiter once existed and after many years it exploded into thousands of pieces that are still revolving around the sun in the form of an asteroid belt. Other asteroids are formed when large meteors collide with large asteroids creating more small ones. These meteors can also collide with planets breaking off chunks of the crust into space. Ceres is believed to be the biggest asteroid that was in space at one point in time. Ceres was believed to be 600 miles wide, making up 1/3 of the total mass of all asteroids. Ceres was the first asteroid discovered and was found in 1801.
There are two main types of asteroids; the first dominates the outer part of the belt and are found to be rich in carbon, the second group are located in the inside of the belt and are found to be rich in minerals. The average temperature of the surface of an asteroid is approximately -73 degrees C. Many people don’t know that over 50,000 small asteroids called meteors hit the Earth every year. These meteors are the outside layer of larger asteroids that have been chipped off or are the surface of other planets that have detached from their positions when hit with larger asteroids. Asteroids sometimes align with Earth when meteors flying through space collide with other asteroids in the belt causing pieces to break off and head in all directions. ...
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... wide and found within 8 million kilometers of Earth. It is very probable that a large asteroid will hit the Earth in the future because of the planet’s past experience with asteroid collisions.
Scientists estimate that an asteroid more than 800 m in diameter hits the Earth every million years and a smaller one hits every century. An asteroid bigger than 1 km would mean the end of about 30% of the World’s population. This size of an asteroid would be the equivalent explosion to 2 million Hiroshima bombs. This explosion would cause destruction of all living creatures within a hundred mile radius as well as blocking off the Sun with dust and rock particles for weeks or even months. Asteroids are probably the deadliest force that our solar system can produce, one strike could put man back in the dark ages and would kill almost the entire population of our planet. It is for this reason that scientists should focus more on understanding asteroids and research more into the defense of our planet. At the moment we only know where a fraction of the asteroids out there are. The asteroid that could destroy our planet could only be a year away and we don’t even know it exists.
Not long ago on the 15th of February 2013 an asteroid named 2012 DA14 merely scrapped the earth’s surface by a tiny margin, even closer than some satellites. According to the NASA (National Aeronautics and Space Administration) the asteroid was 17,200 miles above our planet's surface, which may seem a long way from earth. However, in terms how big the earth is compared to the 17,200 miles, we can acknowledge that many people were saved from death.
Chondrites were made by the accretion of particles of dust present in the primitive Solar System which gave rise to asteroids over 4.55 billion years ago (SOURCE). These asteroid parent bodies of chondrites were small to medium sized asteroids that were never large enough to go through melting and planetary differentiation like Earth. Further evidence of age is shown through the abundance of non-volatile elements in chondrites which is similar to that found in the atmosphere of the Sun and other stars in our galaxy.[10] Even though chondritic asteroids never became hot enough to melt based upon internal temperatures, many of these asteroids did reach high enough temperatures to experience significant thermal metamorphism in the interior. T...
Fossil records inform us that the mass extinction occurred 65 million years ago. This landmark coincides with and marks the Cretaceous-Tertiary (K-T) boundary. There appeared to be relative consensus among scientific professionals that an asteroid impact caused the mass extinction. According to this theory, “debris from the asteroid’s impact would have superheated the atmosphere so that vegetation burst i...
Halley’s Comet or Comet Halley is a comet who orbits earth every 74.5 years! This comet is also the most known comet ever to be documented! Halley is very interesting comet.
Before any of these questions can be answered though, one must first know the origin of the conflicts between the two regions as well as the history of the Free Tibetan Movement. As said above, Tibet used to be a place that not many people knew about. This made it much easier for the Chinese government to come in and take control of the people and the land without much protest from the outside world. In fact even if other countries, like bordering India, had known, not much would have been done. This is because no nation had ever recognized Tibet as an independent country. Rather, it was the events that followed which caused the uproar. According to defected citizens of Tibet that traveled to India and then dispersed throughout the world, the Chinese started a form of spiritual cleansing. Monks and spiritual leaders that would not follow their ground rules were detained, captured or killed. The lama's of the Tibetan people were either taken as political prisoners or exiled. However, there are also those that said that some of this never happened.
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 negative consequences of this open trade include poor living conditions, unsafe work environments, slave labor, and child labor overseas, and wage stagnation in the United States.
A Rose for Emily is a southern gothic short story about an elderly woman stuck in her ways. When we are first introduced to Emily it is at her funeral where the entire town has come to falsely pay their respects. The men only went to Emily’s funeral because they viewed her as a fallen monument and the women only went out of curiosity to peer inside Emily’s house, which had been closed up to the world and shrouded in mystery for decades. Throughout the story, the narrator gradually describes Emily’s descent into madness and her unwillingness to accept the change happening around her. The central theme of A Rose for Emily focuses on the never-ending battle between tradition and change, which is expertly portrayed by William Faulkner’s use of
He figures out which ones are coming our way, and whether or not they are a threat (Kluger 1). Astronomers estimate that one in a thousand asteroids that pass our Earth will hit us (Booth 98). This may not seem like very many, until you consider that we are hit with at least one basketball sized asteroid every day (Kluger 6). So what happens when our one sizeable asteroid a day ends up being the size of a mountain? Well, if it happened today, we would surely be dead.
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.
The Walking Dead, a television show about surviving in the zombie world, is based on the comic book with the same name created by Robert Kirkman. In this show Rick Grimes, a sheriff's deputy, awakes from his coma and finds himself in a hospital. He soon discovers that while he was in a coma the world had become infected, turning humans into flesh-eating zombies later called Walkers by the characters. As Rick sets out to find his family he encounters many other survivors such as Glenn, Daryl, Carl, Maggie, Carol, Sasha, Hershel, Beth, and Michonne, among many others who have died along the way. Rick and the survivors have been through a lot throughout the show, such as having to move from place to place to avoid being eating by walkers. After walking a longs way, they finally find shelter in an old prison where they now live. Although The Walking Dead shows a lot violence, it sends many positive messages to the viewers that teach them about survival, religion and betray and how each of these can be beneficial in the real world
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.
continue to impact our planet at a faster and more destructive rate over time unless
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...