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Unsolved Problems in Astronomy: Fermi Paradox, Dark Matter, Great Filter, Baryogenesis(English)

Unsolved Problems in Astronomy: Fermi Paradox, Dark Matter, Great Filter, Baryogenesis(English)

          
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About the Book

Chapters: Fermi Paradox, Dark Matter, Great Filter, Baryogenesis. Source: Wikipedia. Pages: 71. Not illustrated. Free updates online. Purchase includes a free trial membership in the publisher's book club where you can select from more than a million books without charge. Excerpt: The Fermi paradox is the apparent contradiction between high estimates of the probability of the existence of extraterrestrial civilizations and the lack of evidence for, or contact with, such civilizations. The age of the universe and its vast number of stars suggest that if the Earth is typical, extraterrestrial life should be common. In an informal discussion in 1950, the physicist Enrico Fermi questioned why, if a multitude of advanced extraterrestrial civilizations exist in the Milky Way galaxy, evidence such as spacecraft or probes are not seen. A more detailed examination of the implications of the topic began with a paper by Michael H. Hart in 1975, and it is sometimes referred to as the Fermi-Hart paradox. Another closely related question is the Great Silence even if travel is hard, if life is common, why don't we detect their radio transmissions? There have been attempts to resolve the Fermi paradox by locating evidence of extraterrestrial civilizations, along with proposals that such life could exist without human knowledge. Counterarguments suggest that intelligent extraterrestrial life does not exist or occurs so rarely that humans will never make contact with it. Starting with Hart, a great deal of effort has gone into developing scientific theories about, and possible models of, extraterrestrial life, and the Fermi paradox has become a theoretical reference point in much of this work. The problem has spawned numerous scholarly works addressing it directly, while questions that relate to it have been addressed in fields as diverse as astronomy, biology, ecology, and philosophy. The emerging field of astrobiology has brought an interdis...More: http: //booksllc.net/?id=1157


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Product Details
  • ISBN-13: 9781155408057
  • Publisher: Books LLC
  • Publisher Imprint: Books LLC
  • Height: 152 mm
  • No of Pages: 72
  • Series Title: English
  • Sub Title: Fermi Paradox, Dark Matter, Great Filter, Baryogenesis
  • Width: 229 mm
  • ISBN-10: 1155408055
  • Publisher Date: 15 Sep 2010
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Spine Width: 4 mm
  • Weight: 118 gr


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