{"product_id":"extraterrestrials-where-are-they-paperback-9780521448031","title":"Extraterrestrials; Where Are They? (Paperback) 9780521448031","description":"\u003cfont face=\"Georgia\"\u003e\r\n\u003cp\u003e\u003cfont size=\"6\"\u003eExtraterrestrials\u003c\/font\u003e\u003cbr\u003e\r\n\u003cfont size=\"5\"\u003eWhere Are They?\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cem\u003eExperts critically examine the belief that other intelligent life exists in our galaxy.\u003c\/em\u003e\u003c\/p\u003e\r\n\r\n\r\n\u003cp\u003e\u003cfont size=\"4\"\u003eBen Zuckerman (Edited by), Michael H. Hart (Edited by)\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cfont size=\"3\"\u003e9780521448031, Cambridge University Press\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cfont size=\"3\"\u003ePaperback, published 28 September 1995\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cfont size=\"3\"\u003e252 pages, 12 b\/w illus.  7 tables\u003cbr\u003e23.2 x 15.6 x 0.6 cm, 0.82 kg\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\r\n\r\n\r\n\r\n\u003cp align=\"justify\"\u003e\u003cstrong\u003e\u003cfont size=\"3\"\u003eIs it possible that extraterrestrial life forms exist within our Galaxy, the Milky Way? This book offers a critical analysis by leading experts in a range of sciences, of the plausibility that other intelligent lifeforms do exist. Exploration of the Solar System, and observations with telescopes that probe deep space, have come up empty handed in searches for evidence of extraterrestrial life. Many experts in the fields of astronomy, biology, chemistry and physics are now arguing that the evidence points to the conclusion that technological civilisations are rare. After ten billion years, and among hundreds of billions of stars, we may well possess the most advanced brains in the Milky Way Galaxy. This second edition contains many new and updated aspects of extraterrestrial research, especially the biological viewpoint of the question.\u003c\/font\u003e\u003c\/strong\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cfont size=\"3\"\u003e1. An explanation for the absence of extraterrestrials on Earth Michael H. Hart\u003cbr\u003e 2. One attempt to find where they are: NASA's high resolution microwave survey Jill Tarter\u003cbr\u003e 3. An examination of claims that extraterrestrial visitors to Earth are being observed Robert Sheaffer\u003cbr\u003e 4. The likelihood of interstellar colonization, and the absence of its evidence Sebastian von Hoerner\u003cbr\u003e 5. Preemption of the galaxy by the first advanced civilization Ronald Bracewell\u003cbr\u003e 6. Stellar evolution: motivation for the mass interstellar migrations Ben Zuckerman\u003cbr\u003e 7. Interstellar propulsion systems Freeman Dyson\u003cbr\u003e 8. Interstellar travel: a review Ian A. Crawford\u003cbr\u003e 9. Settlements in space, and interstellar travel Cliff Singer\u003cbr\u003e 10. Terraforming James Oberg\u003cbr\u003e 11. Estimates of expansion time scales Eric M. Jones\u003cbr\u003e 12. A search for tritium sources in our Solar System may reveal the presence of space-probes from other stellar systems Michael D. Papagiannis\u003cbr\u003e 13. Primordial organic cosmochemistry Cyril Ponnamperuma and Rafael Navarro-Gonzalez\u003cbr\u003e 14. Chance and the origin of life Edward Argyle\u003cbr\u003e 15. The RNA world: life before DNA and protein Gerald F. Joyce\u003cbr\u003e 16. The search for extraterrestrial intelligence Ernst Nayr\u003cbr\u003e 17. Alone in a crowded universe Jared Diamond\u003cbr\u003e 18. Possible forms of life in environments very different from the Earth Robert Shapiro and Gerald Feinberg\u003cbr\u003e 19. Cosmological SETI frequency standards J. Richard Gott, III\u003cbr\u003e 20. Galactic chemical evolution: implications for the existence of habitable planets Virginia Trimble\u003cbr\u003e 21. The frequency of planetary systems in the galaxy Jonathan I. Lunine\u003cbr\u003e 22. Atmospheric evolution, the Drake equation, and DNA: sparse life in an infinite universe Michael H. Hart.\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cfont size=\"3\"\u003eSubject Areas: Popular astronomy \u0026amp; space [\u003ca title=\"See our other books on Popular astronomy \u0026amp; space\" href=\"https:\/\/freshlyprintedbooks.co.uk\/search?q=%22Popular%20astronomy%20\u0026amp;%20space%20%5BWNX%5D%22\"\u003eWNX\u003c\/a\u003e]\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\r\n\u003c\/font\u003e","brand":"Cambridge University Press","offers":[{"title":"Default Title","offer_id":46004094042392,"sku":"9780521448031","price":34.39,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0730\/2037\/5320\/products\/9780521448031i_0666ee69-3e51-4b03-9553-ba74ca94c065.jpg?v=1691382034","url":"https:\/\/freshlyprintedbooks.co.uk\/products\/extraterrestrials-where-are-they-paperback-9780521448031","provider":"Freshly Printed Books","version":"1.0","type":"link"}