Seti - Dyson Sphere, Extraterrestrial Life, Fermi Paradox, Carl Sagan, Drake Equation, Extrasolar Planet, Lincos, Copernican Principle (Paperback)

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 112. Chapters: Dyson sphere, Extraterrestrial life, Fermi paradox, Carl Sagan, Drake equation, Extrasolar planet, Lincos, Copernican principle, Frank Drake, Kardashev scale, Arecibo Observatory, Arthur C. Clarke, Habitable zone, SETI@home, Communication with Extraterrestrial Intelligence, Allen Telescope Array, Ronald N. Bracewell, Habitability of red dwarf systems, Pascal Lee, Active SETI, Arecibo message, Project Cyclops, Wow signal, List of interstellar radio messages, A Message From Earth, Aleksandr Leonidovich Zaitsev, Philip Morrison, H. Paul Shuch, Mediocrity principle, Bracewell probe, Giuseppe Cocconi, Interstellar communication, Jill Tarter, Metalaw, Iosif Shklovsky, Steven J. Dick, Richard Bryan, Seth Shostak, Cosmic Call, Ohio State University Radio Observatory, SETI Institute, Teen Age Message, Laurance Doyle, David P. Anderson, Nikolai Kardashev, Radio source SHGb02+14a, SetiQuest, Project Ozma, Dyson-Harrop satellite, CTA-102, Are We Alone?, High Resolution Microwave Survey, John Billingham, SERENDIP, Lewis White Beck, The Morse Message, LGM-1, Hello From Earth, Across the Universe, Project Phoenix, Waterhole, Stuart Kingsley, Matt Lebofsky, Jerry R. Ehman, HabCat, Sebastian von Hoerner, OpenSonATA, Intelligence Principle, San Marino Scale. Excerpt: The Fermi paradox (Fermi's paradox or 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 exists in the Milky Way galaxy, evidence such as spacecraft or pr...