How Likely Is Extraterrestrial Life

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How Likely is Extraterrestrial Life?

J. Woods Halley
How Likely is Extraterrestrial Life Book PDF

Author : J. Woods Halley
Publisher : Springer Science & Business Media
Page : 148 pages
File Size : 43,9 Mb
Release : 2012-01-05
Category : Science
ISBN : 9783642227547

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How Likely is Extraterrestrial Life? by J. Woods Halley Pdf

What does existing scientific knowledge about physics, chemistry, meteorology and biology tell us about the likelihood of extraterrestrial life and civilizations? And what does the fact that there is currently no credible scientific evidence for the existence of extraterrestrial biospheres or civilizations teach us? This book reviews the various scientific issues that arise in considering the question of how common extraterrestrial life is likely to be in our galaxy and whether humans are likely to detect it. The book stands out because of its very systematic organization and relatively unbiased treatment of the main open question. It covers all relevant aspects of many disciplines required to present the different possible answers. It has and will provide undergraduates with a stimulating introduction to many of these fields at an early stage in their university careers, when they are still choosing a specialty. The difficulties and the range of possible answers to the title question are carefully addressed in the light of present understanding. The resulting perspective is distinctly different from those suggested by most other books on this topic.

How Likely is Extraterrestrial Life?

J. Woods Halley
How Likely is Extraterrestrial Life Book PDF

Author : J. Woods Halley
Publisher : Springer Science & Business Media
Page : 148 pages
File Size : 42,6 Mb
Release : 2012-01-05
Category : Science
ISBN : 9783642227547

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How Likely is Extraterrestrial Life? by J. Woods Halley Pdf

What does existing scientific knowledge about physics, chemistry, meteorology and biology tell us about the likelihood of extraterrestrial life and civilizations? And what does the fact that there is currently no credible scientific evidence for the existence of extraterrestrial biospheres or civilizations teach us? This book reviews the various scientific issues that arise in considering the question of how common extraterrestrial life is likely to be in our galaxy and whether humans are likely to detect it. The book stands out because of its very systematic organization and relatively unbiased treatment of the main open question. It covers all relevant aspects of many disciplines required to present the different possible answers. It has and will provide undergraduates with a stimulating introduction to many of these fields at an early stage in their university careers, when they are still choosing a specialty. The difficulties and the range of possible answers to the title question are carefully addressed in the light of present understanding. The resulting perspective is distinctly different from those suggested by most other books on this topic.

Alien Universe

Don Lincoln
Alien Universe Book PDF

Author : Don Lincoln
Publisher : JHU Press
Page : 279 pages
File Size : 42,6 Mb
Release : 2013-10-15
Category : Science
ISBN : 9781421410739

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Alien Universe by Don Lincoln Pdf

Are alien civilizations really possible? If extraterrestrials exist, where are they? How likely is it that somewhere in the universe an Earth-like planet supports an advanced culture? Why do so many people claim to have encountered Aliens? In this gripping exploration, scientist Don Lincoln exposes and explains the truths about the belief in and the search for life on other planets. In the first half of Alien Universe, Lincoln looks to Western civilization's collective image of Aliens, showing how our perceptions of extraterrestrials have evolved over time. The roots of this belief can be traced as far back as our earliest recognition of other planets in the universe—the idea of them supporting life was a natural progression of thinking that has fascinated us ever since. Our captivation with Aliens has, however, led to mixed results. The world was fooled in the nineteenth century during the Great Moon Hoax of 1835, and many people misunderstood Orson Welles's 1938 radio broadcast, The War of the Worlds, leading to significant anxiety among some listeners. Our continuing interest in Aliens is reflected in entertainment successes such as E.T., The X-Files, and Star Trek. The second half of the book explores the scientific possibility of whether advanced Alien civilizations do exist. For many years, researchers have sought to answer Enrico Fermi’s great paradox—if there are so many planets in the universe and there is a high probability that many of those can support life, then why have we not actually encountered any Aliens? Lincoln describes how modern science teaches us what is possible and what is not in our search for extraterrestrial civilizations. Whether you are drawn to the psychological belief in Aliens, the history of our interest in life on other planets, or the scientific possibility of Alien existence, Alien Universe is sure to hold you spellbound.

Extraterrestrial

Avi Loeb
Extraterrestrial Book PDF

Author : Avi Loeb
Publisher : HarperCollins
Page : 245 pages
File Size : 51,5 Mb
Release : 2021-01-26
Category : Science
ISBN : 9780358274551

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Extraterrestrial by Avi Loeb Pdf

New York Times Bestseller | Wall Street Journal Bestseller | Publishers Weekly Bestseller | Publishers Marketplace 2020 Buzz Book | Amazon Best Book of the Year | Longlisted for the 2022 PEN/E.O. Wilson Literary Science Writing Award “Provocative and thrilling ... Loeb asks us to think big and to expect the unexpected.” —Alan Lightman, New York Times bestselling author of Einstein’s Dreams and Searching for Stars on an Island in Maine Harvard’s top astronomer lays out his controversial theory that our solar system was recently visited by advanced alien technology from a distant star. In late 2017, scientists at a Hawaiian observatory glimpsed an object soaring through our inner solar system, moving so quickly that it could only have come from another star. Avi Loeb, Harvard’s top astronomer, showed it was not an asteroid; it was moving too fast along a strange orbit, and left no trail of gas or debris in its wake. There was only one conceivable explanation: the object was a piece of advanced technology created by a distant alien civilization. In Extraterrestrial, Loeb takes readers inside the thrilling story of the first interstellar visitor to be spotted in our solar system. He outlines his controversial theory and its profound implications: for science, for religion, and for the future of our species and our planet. A mind-bending journey through the furthest reaches of science, space-time, and the human imagination, Extraterrestrial challenges readers to aim for the stars—and to think critically about what’s out there, no matter how strange it seems.

Aliens

Jim Al-Khalili
Aliens Book PDF

Author : Jim Al-Khalili
Publisher : Macmillan + ORM
Page : 259 pages
File Size : 54,9 Mb
Release : 2017-05-09
Category : Science
ISBN : 9781250109651

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Aliens by Jim Al-Khalili Pdf

In these lively and fascinating essays edited by theoretical physicist Jim Al-Khalili, scientists from around the world weigh in on the latest advances in the search for intelligent life in the universe and discuss just what that might look like. Since 2000, science has seen a surge in data and interest on several fronts related to E.T. (extraterrestrials); A.I. (artificial intelligence); and SETI (search for extraterrestrial intelligence). The debate has intensified over whether life exists outside our solar system, what that life would look like, and whether we’ll ever make contact. Included here are essays from a broad spectrum of the scientific community: cosmologists, astrophysicists, NASA planetary scientists, and geneticists, to name just a few, discussing the latest research and theories relating to alien life. Some of the topics include: If life exists somewhere in space, what are the odds that it evolves into something we would recognize as intelligent? What will space travel look like in the future, and will it all be done by cyborg technology? How long until we are ruled by robot overlords? (This is actually a serious consideration.) Are we simply a simulation in the mind of some supreme being, acting out a virtual reality game? For those who have ever wondered, Is there anybody out there? here are the latest theories and evidence that move us closer to answering that question.

The Search for Extraterrestrial Life

Don Nardo
The Search for Extraterrestrial Life Book PDF

Author : Don Nardo
Publisher : Lucent Press
Page : 116 pages
File Size : 40,7 Mb
Release : 2006
Category : Juvenile Nonfiction
ISBN : 1590188322

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The Search for Extraterrestrial Life by Don Nardo Pdf

It would terribly egocentric of humankind to believe that they are the only intelligent life in the universe. Since 1995, scientists have detected more than 120 planets orbiting other stars. They have discovered oceans of liquid water that have been beneath the surfaces of several moons in our solar system. The search for other life continues. This fascinating volume explores the scientific probabilities of extraterrestrial life and current scientific efforts to find it.

The Limits of Organic Life in Planetary Systems

National Research Council,Division on Earth and Life Studies,Board on Life Sciences,Division on Engineering and Physical Sciences,Space Studies Board,Committee on the Origins and Evolution of Life,Committee on the Limits of Organic Life in Planetary Systems
The Limits of Organic Life in Planetary Systems Book PDF

Author : National Research Council,Division on Earth and Life Studies,Board on Life Sciences,Division on Engineering and Physical Sciences,Space Studies Board,Committee on the Origins and Evolution of Life,Committee on the Limits of Organic Life in Planetary Systems
Publisher : National Academies Press
Page : 116 pages
File Size : 47,7 Mb
Release : 2007-07-26
Category : Science
ISBN : 9780309104845

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The Limits of Organic Life in Planetary Systems by National Research Council,Division on Earth and Life Studies,Board on Life Sciences,Division on Engineering and Physical Sciences,Space Studies Board,Committee on the Origins and Evolution of Life,Committee on the Limits of Organic Life in Planetary Systems Pdf

The search for life in the solar system and beyond has to date been governed by a model based on what we know about life on Earth (terran life). Most of NASA's mission planning is focused on locations where liquid water is possible and emphasizes searches for structures that resemble cells in terran organisms. It is possible, however, that life exists that is based on chemical reactions that do not involve carbon compounds, that occurs in solvents other than water, or that involves oxidation-reduction reactions without oxygen gas. To assist NASA incorporate this possibility in its efforts to search for life, the NRC was asked to carry out a study to evaluate whether nonstandard biochemistry might support life in solar system and conceivable extrasolar environments, and to define areas to guide research in this area. This book presents an exploration of a limited set of hypothetical chemistries of life, a review of current knowledge concerning key questions or hypotheses about nonterran life, and suggestions for future research.

Rare Earth

Peter D. Ward,Donald Brownlee
Rare Earth Book PDF

Author : Peter D. Ward,Donald Brownlee
Publisher : Springer
Page : 359 pages
File Size : 45,8 Mb
Release : 2007-05-08
Category : Science
ISBN : 9780387218489

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Rare Earth by Peter D. Ward,Donald Brownlee Pdf

What determines whether complex life will arise on a planet, or even any life at all? Questions such as these are investigated in this groundbreaking book. In doing so, the authors synthesize information from astronomy, biology, and paleontology, and apply it to what we know about the rise of life on Earth and to what could possibly happen elsewhere in the universe. Everyone who has been thrilled by the recent discoveries of extrasolar planets and the indications of life on Mars and the Jovian moon Europa will be fascinated by Rare Earth, and its implications for those who look to the heavens for companionship.

Sharing the Universe

G. Seth Shostak
Sharing the Universe Book PDF

Author : G. Seth Shostak
Publisher : Unknown
Page : 220 pages
File Size : 42,7 Mb
Release : 1998
Category : History
ISBN : 0965377431

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Sharing the Universe by G. Seth Shostak Pdf

Scientists are scanning the skies for extraterrestrial life. The most sophisticated search takes place at California's SETI Institute. This book explains their fascinating work to general readers.

Civilizations Beyond Earth

Douglas A. Vakoch,Albert A. Harrison
Civilizations Beyond Earth Book PDF

Author : Douglas A. Vakoch,Albert A. Harrison
Publisher : Berghahn Books
Page : 240 pages
File Size : 52,7 Mb
Release : 2011-09-30
Category : Social Science
ISBN : 9780857452122

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Civilizations Beyond Earth by Douglas A. Vakoch,Albert A. Harrison Pdf

Astronomers around the world are pointing their telescopes toward the heavens, searching for signs of intelligent life. If they make contact with an advanced alien civilization, how will humankind respond? In thinking about first contact, the contributors to this volume present new empirical and theoretical research on the societal dimensions of the Search for Extraterrestrial Intelligence (SETI). Archaeologists and astronomers explore the likelihood that extraterrestrial intelligence exists, using scientific insights to estimate such elusive factors as the longevity of technological societies. Sociologists present the latest findings of novel surveys, tapping into the public's attitudes about life beyond Earth to show how religion and education influence beliefs about extraterrestrials. Scholars from such diverse disciplines as mathematics, chemistry, journalism, and religious studies offer innovative solutions for bridging the cultural gap between human and extraterrestrial civilizations, while recognizing the tremendous challenges of communicating at interstellar distances. At a time when new planets are being discovered around other stars at an unprecedented rate, this collection provides a much needed guide to the human impact of discovering we are not alone in the universe.

Religions and Extraterrestrial Life

David A. Weintraub
Religions and Extraterrestrial Life Book PDF

Author : David A. Weintraub
Publisher : Springer
Page : 229 pages
File Size : 41,7 Mb
Release : 2014-07-16
Category : Religion
ISBN : 9783319050560

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Religions and Extraterrestrial Life by David A. Weintraub Pdf

In the twenty-first century, the debate about life on other worlds is quickly changing from the realm of speculation to the domain of hard science. Within a few years, as a consequence of the rapid discovery by astronomers of planets around other stars, astronomers very likely will have discovered clear evidence of life beyond the Earth. Such a discovery of extraterrestrial life will change everything. Knowing the answer as to whether humanity has company in the universe will trigger one of the greatest intellectual revolutions in history, not the least of which will be a challenge for at least some terrestrial religions. Which religions will handle the discovery of extraterrestrial life with ease and which will struggle to assimilate this new knowledge about our place in the universe? Some religions as currently practiced appear to only be viable on Earth. Other religions could be practiced on distant worlds but nevertheless identify both Earth as a place and humankind as a species of singular spiritual religious importance, while some religions could be practiced equally well anywhere in the universe by any sentient beings. Weintraub guides readers on an invigorating tour of the world’s most widely practiced religions. It reveals what, if anything, each religion has to say about the possibility that extraterrestrial life exists and how, or if, a particular religion would work on other planets in distant parts of the universe.

Intelligent Life in the Universe

Peter Ulmschneider
Intelligent Life in the Universe Book PDF

Author : Peter Ulmschneider
Publisher : Springer Science & Business Media
Page : 314 pages
File Size : 40,6 Mb
Release : 2005-02-23
Category : Science
ISBN : 9783540328384

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Intelligent Life in the Universe by Peter Ulmschneider Pdf

This book examines the origins, development and fate of intelligent species in the observable part of our universe. It scrutinizes what kind of information about extraterrestrial intelligent life can be inferred from our own biological, cultural and scientific evolution and the likely future of mankind. There is emphasis on the geological conditions and consequences of life's conquest of land as the pre-condition for the emergence of life with our type of technical intelligence.

The Dark Forest

Cixin Liu
The Dark Forest Book PDF

Author : Cixin Liu
Publisher : Tor Books
Page : 513 pages
File Size : 40,7 Mb
Release : 2015-08-11
Category : Fiction
ISBN : 9781466853430

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The Dark Forest by Cixin Liu Pdf

The inspiration for the Netflix series 3 Body Problem! Over 1 million copies of the Three-Body Problem series sold in North America PRAISE FOR THE THREE-BODY PROBLEM SERIES: “A mind-bending epic.”—The New York Times • “War of the Worlds for the 21st century.”—The Wall Street Journal • “Fascinating.”—TIME • “Extraordinary.”—The New Yorker • “Wildly imaginative.”—Barack Obama • “Provocative.”—Slate • “A breakthrough book.”—George R. R. Martin • “Impossible to put down.”—GQ • “Absolutely mind-unfolding.”—NPR • “You should be reading Liu Cixin.”—The Washington Post The Dark Forest is the second novel in the groundbreaking, Hugo Award-winning series from China's most beloved science fiction author, Cixin Liu. In The Dark Forest, Earth is reeling from the revelation of a coming alien invasion-in just four centuries' time. The aliens' human collaborators may have been defeated, but the presence of the sophons, the subatomic particles that allow Trisolaris instant access to all human information, means that Earth's defense plans are totally exposed to the enemy. Only the human mind remains a secret. This is the motivation for the Wallfacer Project, a daring plan that grants four men enormous resources to design secret strategies, hidden through deceit and misdirection from Earth and Trisolaris alike. Three of the Wallfacers are influential statesmen and scientists, but the fourth is a total unknown. Luo Ji, an unambitious Chinese astronomer and sociologist, is baffled by his new status. All he knows is that he's the one Wallfacer that Trisolaris wants dead. The Three-Body Problem Series The Three-Body Problem The Dark Forest Death's End Other Books by Cixin Liu Ball Lightning Supernova Era To Hold Up the Sky The Wandering Earth A View from the Stars At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.

Life on Other Worlds

Steven J. Dick
Life on Other Worlds Book PDF

Author : Steven J. Dick
Publisher : Cambridge University Press
Page : 306 pages
File Size : 49,9 Mb
Release : 2001-03-19
Category : Body, Mind & Spirit
ISBN : 0521799120

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Life on Other Worlds by Steven J. Dick Pdf

Are we alone in the universe? From canals on Mars to the search for ET, the debate goes on. Lucid and accessible, this otherworldly guide chronicles the history of the 20th century obsession with extraterrestrials.

Extraterrestrials

E. Regis
Extraterrestrials Book PDF

Author : E. Regis
Publisher : CUP Archive
Page : 292 pages
File Size : 50,6 Mb
Release : 1987-04-24
Category : Science
ISBN : 0521348528

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Extraterrestrials by E. Regis Pdf

With current interest in extraterrestrials at a peak, this book is a collection of original and reprinted articles advancing the latest scientific ideas as to the possible existence and nature of extraterrestrial intelligent life. Usually this subject is treated only in popular media, such as science fiction novels, movies, and television. Recently, however, scientists and researchers have begun to consider in earnest whether extraterrestrials really exist, whether they have evolved from simpler forms of life, whether they have evolved intelligence, and if so whether their modes of understanding the world are comparable to and congruent with our own. The contributors to this volume cover these topics, and also consider how we might communicate with aliens, and whether we would be able to understand the alien messages we might receive. Finally the authors, who include distinguished scientists, speculate whether the aliens might have a moral code, and what might be our moral obligations in the event any extraterrestrials were ever discovered.