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Sagan vs. Seeds

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Justin Reeder Mrs. Harper Astronomy December 9, 2007 Word Count: 1,119 Life on Other Worlds The author of our textbook Foundations of Astronomy, Michael A. Seeds, has his own opinion and style of writing. Seeds uses a lot of evidence and other peoples work to show his arguments and his opinions. He uses a unique style that captures the audience's attention. "Might life exist in other solar systems? To consider this question, you need to consider how common planets are and what conditions a planet must fulfill for life to originate and evolve to intelligence. The first question is astronomical; the second is biological," (Seeds 664). This is an example of his style of presentation how he makes you as the reader answer questions and form your own opinion of what you believe is true. This is also the objective of his presentation. I believe that he wants you to form your own hypothesis and own theory from evidence he finds. The author of Cosmos, Carl Sagan, uses his own style of writing as well. ...read more.


He talks about how we've been sending out TV and FM signals to space for the last 50 years and that any civilization inside of 50 light-years will have received our signals and probably detected Earth. He also concludes that a normal conversation would be nearly impossible because if you send a message 10 light-years away you would have to wait 20 years for a reply. (Seeds 667). Sagan draws many conclusions as well. One of the most interesting things he says is "There may be a million worlds in the Milky Way Galaxy alone that at this moment are inhabited by beings who are very different from us, and far more advanced. Knowing a great deal is not the same as being smart; intelligence is not information alone but also judgment, the manner in which information is coordinated and used." (Sagan 224). This shows how he draws conclusions from everything. He also concludes that the possibility of finding beings very similar to us is near zero but the possibility of finding intelligence is not close to zero. ...read more.


Sagan says that it is out of the question that we could kill ourselves tomorrow (Sagan 250). I believe that there is life out there somewhere. I think that there is most likely life somewhere else in our galaxy and there has to be life outside of our galaxy. I believe that there is technically capable life out there. There has to be life out there besides us because there are so many stars with planets in our galaxy alone and there are so many more galaxies that there is no way that we can be alone in this huge enormous universe. I think that if there is life out there that we will make contact with them. At least I hope that we do because that would let us all know that we're not alone. I think that if and when we do make contact with another civilization that it probably won't be in my lifetime. And I think that it will be through radio communication because travel as of right now is out of the question and radio communication would be the easiest because it travels throughout space. ...read more.

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