Life On Earth Came From Other Planets PDF Download
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| Author | : Ana I. Gomez de Castro |
| Publisher | : Elsevier |
| Total Pages | : 178 |
| Release | : 2021-03-27 |
| Genre | : Science |
| ISBN | : 0128191716 |
Download Ultraviolet Astronomy and the Quest for the Origin of Life Book in PDF, ePub and Kindle
Ultraviolet Astronomy and the Quest for the Origin of Life addresses the use of astronomical observations in the ultraviolet range to better understand the generation of complex, life-precursor molecules. The origin of RNA is still under debate but seems to be related to the generation of pools of complex organic molecules submitted to heavy cycles of solution in water and drying. This book investigates whether these cycles require a planetary surface or may occur in space by examining both the theoretical and observational aspects of the role of UV radiation in the origin of life. This book offers the latest advances in these studies for astronomers, astrobiologists and planetary scientists. Addresses both the theoretical and observational aspects of the role of Ultraviolet (UV) radiation in the origin of life Builds on the requirements to produce prebiotic molecules in space and the implications for the origin of RNA Investigates the use of ultraviolet observations related to planetary system formation, the evolution of young planetary disks, and the interaction of stars with planetary atmospheres
| Author | : Steven J. Dick |
| Publisher | : Cambridge University Press |
| Total Pages | : 367 |
| Release | : 2015-10-26 |
| Genre | : Nature |
| ISBN | : 1107109981 |
Download The Impact of Discovering Life Beyond Earth Book in PDF, ePub and Kindle
This book discusses the big questions about how the discovery of extraterrestrial life, whether intelligent or microbial, would impact society and humankind.
| Author | : James Trefil |
| Publisher | : Smithsonian Institution |
| Total Pages | : 240 |
| Release | : 2019-09-17 |
| Genre | : Science |
| ISBN | : 1588346730 |
Download Imagined Life Book in PDF, ePub and Kindle
The captivating possibilities of extraterrestrial life on exoplanets, based on current scientific knowledge of existing worlds and forms of life It is now known that we live in a galaxy with more planets than stars. The Milky Way alone encompasses 30 trillion potential home planets. Scientists Trefil and Summers bring readers on a marvelous experimental voyage through the possibilities of life--unlike anything we have experienced so far--that could exist on planets outside our own solar system. Life could be out there in many forms: on frozen worlds, living in liquid oceans beneath ice and communicating (and even battling) with bubbles; on super-dense planets, where they would have evolved body types capable of dealing with extreme gravity; on tidally locked planets with one side turned eternally toward a star; and even on "rogue worlds," which have no star at all. Yet this is no fictional flight of fancy: the authors take what we know about exoplanets and life on our own world and use that data to hypothesize about how, where, and which sorts of life might develop. Imagined Life is a must-have for anyone wanting to learn how the realities of our universe may turn out to be far stranger than fiction.
| Author | : Sir Fred Hoyle |
| Publisher | : |
| Total Pages | : 28 |
| Release | : 1980 |
| Genre | : Biochemistry |
| ISBN | : |
Download The Origin of Life Book in PDF, ePub and Kindle
| Author | : Rhawn Joseph |
| Publisher | : Cosmology.com |
| Total Pages | : 536 |
| Release | : 2010-12 |
| Genre | : Science |
| ISBN | : 9780974975597 |
Download Life on Earth Came from Other Planets Book in PDF, ePub and Kindle
| Author | : National Research Council |
| Publisher | : National Academies Press |
| Total Pages | : 116 |
| Release | : 2007-07-26 |
| Genre | : Science |
| ISBN | : 030910484X |
Download The Limits of Organic Life in Planetary Systems Book in PDF, ePub and Kindle
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.
| Author | : National Research Council |
| Publisher | : National Academies Press |
| Total Pages | : 166 |
| Release | : 2010-03-08 |
| Genre | : Science |
| ISBN | : 0309215897 |
Download Forging the Future of Space Science Book in PDF, ePub and Kindle
From September 2007 to June 2008 the Space Studies Board conducted an international public seminar series, with each monthly talk highlighting a different topic in space and Earth science. The principal lectures from the series are compiled in Forging the Future of Space Science. The topics of these events covered the full spectrum of space and Earth science research, from global climate change, to the cosmic origins of life, to the exploration of the Moon and Mars, to the scientific research required to support human spaceflight. The prevailing messages throughout the seminar series as demonstrated by the lectures in this book are how much we have accomplished over the past 50 years, how profound are our discoveries, how much contributions from the space program affect our daily lives, and yet how much remains to be done. The age of discovery in space and Earth science is just beginning. Opportunities abound that will forever alter our destiny.
| Author | : Peter D. Ward |
| Publisher | : Springer |
| Total Pages | : 359 |
| Release | : 2007-05-08 |
| Genre | : Science |
| ISBN | : 0387218483 |
Download Rare Earth Book in PDF, ePub and Kindle
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.
| Author | : Athena Coustenis |
| Publisher | : Cambridge University Press |
| Total Pages | : 331 |
| Release | : 2013-09-12 |
| Genre | : Science |
| ISBN | : 1107026172 |
Download Life Beyond Earth Book in PDF, ePub and Kindle
An engaging account of our quest for habitable environments, recounting fascinating recent discoveries and providing insight into future space missions.
| Author | : Bruce Jakosky |
| Publisher | : Cambridge University Press |
| Total Pages | : 340 |
| Release | : 1998-10-15 |
| Genre | : Science |
| ISBN | : 9780521598378 |
Download The Search for Life on Other Planets Book in PDF, ePub and Kindle
Does life exist on other planets? This 1998 book presents the scientific basis for thinking there may be life elsewhere in the Universe. It is the first to cover the entire breadth of recent exciting discoveries, including the discovery of planets around other stars and the possibility of fossil life in meteorites from Mars. Suitable for the general reader, this authoritative book avoids technical jargon and is well illustrated throughout. It covers all the major topics, including the origin and early history of life on Earth, the environmental conditions necessary for life to exist, the possibility that life might exist elsewhere in our Solar System, the occurrence of planets around other stars and their habitability, and the possibility of intelligent extraterrestrial life. For all those interested in understanding the scientific evidence for and likelihood of extraterrestrial life, this is the most comprehensive and readable book to date.
