Is There Life In Outer Space Essay Text

Jonathan Friesen - Writing Coach

length: 2534 words 7.2 double spaced pages rating: blue price: $26.95 life in outer space the answer to the above question is i don't know. Like all science, everything i say in this essay could be proved wrong by a new theory or discovery tomorrow. However, the path that we follow will be full of interesting ideas that, i hope, will stimulate the reader. Out of the billions of solar systems, there has to be a chance that a least a couple planets have the ability to support life. Life may have developed on the planets like life developed here, but it may have developed differently also. Are they more intelligent than we are or are they single celled organisms? it goes back to how life on earth started.

In the early days of earth, we learned that the atmosphere was just carbon monoxide, but plants produced oxygen. Some of earth's fossil records indicate that within a billion year period of it's formation as a planet, as soon as heavy bombardment by asteroids ceased, primitive organisms such as bacteria and algae evolved and spread around the globe very quickly. This mystery makes it hard for us to figure out how life would arise on other planets. In order to help people figure out what planets out there could support life and may have life on them, we have to look at what life needs to survive.

It is believed that if a planet looks like earth and has liquid water and oxygen, then this would present strong evidence for its having life. If there is other life out there, what are the chances of finding it in our lifetime, or even our children's lifetime. Some believe that there are so many planets out there that it would be impossible for us not to find intelligent life someday. Others believe that, due to the lack of evidence, we cannot accept this prospect until presented with proof. So should we agree with the scientists for or against? throughout history our predecessors have shown remarkable resistance to accepting ground breaking concepts, greeting new ideas with denial, sometimes even persecution… only to be proven wrong eventually. There are many examples of this happening over 2,0 years ago, aristarchus of samos wrote about the earth being just one of many objects moving about the sun, even though the modern idea of orbits did not exist. His works show geometrical calculations based on observations, showing the sun to be much bigger than the earth and the moon.

Even though these calculations supported his ideas, they were not accepted as true until the 17th century. And so throughout the dark ages and beyond, people continued to believe that the earth was flat and the centre of the universe and to say otherwise was heresy. Indeed even copernicus and galileo, who we celebrate today as great visionaries and seekers of truth, were severely punished for challenging the roman catholic church view that the earth was the centre of the universe.

Buy Ap Us History Review Book

Our writers can help get your essay back on track, take a look at our services to learn more about how we can help. Essay writing service essay marking service place an order so should we rule out the possibility of extraterrestrial life just for the mere lack of sufficient evidence on our hands? interestingly, some scientists believe that it is our loneliness in the universe which makes us imagine that extraterrestrial life is possible. To think of this infinite amount of space with no intelligent life other than our own is not a comforting thought to say the least.

And so, according to these scientists, we invent stories to fill up the void beyond our solar system, to imbue a lifeless universe with intelligent life and thus to make it seem a more habitable and friendly place to live. On the other hand, scientists such as carl sagan and stephen hawking argue that it is exactly because the universe is so vast that it would be improbable for life not to exist somewhere other than earth. In six weeks alone nasa national aeronautics and space administration found 700 possible planets and 5 new solar systems qmi agency 2010.

Scientists believe that a small group of these may be capable of supporting life. Many such planets, nicknamed 'goldilocks planets' not too cold, not too warm, have been found already, including gliese 581 c, gliese 581 g, gliese 581 d and ogle 2005 blg 390lb, all of which have earth like qualities. Recently, on september 29th 2010, a new goldilocks planet was discovered by scientists using one of the most powerful telescopes on earth the keck telescope in hawaii. Gliese 581 g lies 20 light years away from its star's 'goldilocks zone' an area where temperatures are favourable and planets may be capable of containing water, and therefore also life. The fact that we were able to detect this planet so quickly and so nearby tells us that planets like this must be really common, says steven vogt an astronomer at the university of california santa cruz. The planet's average temperature is thought to be between 12c and 31c, and we know for a fact that there are many intelligent animals living in these types of conditions on earth, such as polar bears, whales, and even humans, such as the inuit peoples. Vogt goes on to state that: the number of systems with potentially habitable planets is probably in the order of 10 or 20%, and when you multiply that by the hundreds of billions of stars in the milky way, that's a large number…there could be tens of billions of these systems in our galaxy.

This is a huge number! surely we cannot be so naã¯ve to think that we are the star gliese 581 the only intelligent life in such a vast universe? the drake equation also seems to prove this point. Yet, some scientists argue that if the chance of finding life were so huge, we should have found it by now. Frank tipler, for example, has proved that, if using pessimistic numbers, the chances of finding a civilization in the galaxy is lower than one. Even frank drake the inventor of the drake equation has stated that the drake equation is just a way of organizing our ignorance on the subject gowdy 2008. Carl sagan, although later implying that it could be much less, used optimistic numbers to conclude that there might be as many as one million in the milky way alone.

One reason as to why we have not yet found any traces of intelligent life might be because we have no idea of what to look for. The key to actually finding intelligent life is to fully understand what the term means. But how do we define intelligent? some think that any form of life that can survive should be classified as intelligent, whereas others state that even homo sapiens cannot be placed in this category. Seti search for extraterrestrial intelligence believe that intelligent life must be able to transmit and receive signals, whereas a more general definition is that intelligent life must be able to learn. Who wrote this essay request removal example essays furthermore, just because we earthlings need certain elements and compounds to survive for example oxygen and water , it does not necessarily mean that any other intelligent life form would as well. As a matter of fact, recently, a microorganism has been found which uses arsenic instead of phosphorus in its cell components. Phosphorus is essential to both dna and rna, which carry genetic information for life, and was until recently considered absolutely essential for all living cells.

English Newspapers In Ethiopia