Download or read book Signatures of Life written by Edward Ashpole and published by . This book was released on 2013 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: For 50 years, astronomers in SETI (Search for Extraterrestrial Intelligence) have scanned the universe for intelligent signals, but with no success. In this intriguing book, Ashpole explains the probable reasons for this and discusses other avenues of investigation.
Download or read book Life in the Cosmos written by Manasvi Lingam and published by Harvard University Press. This book was released on 2021-06-29 with total page 1089 pages. Available in PDF, EPUB and Kindle. Book excerpt: A rigorous and scientific analysis of the myriad possibilities of life beyond our planet. ÒAre we alone in the universe?Ó This tantalizing question has captivated humanity over millennia, but seldom has it been approached rigorously. Today the search for signatures of extraterrestrial life and intelligence has become a rapidly advancing scientific endeavor. Missions to Mars, Europa, and Titan seek evidence of life. Laboratory experiments have made great strides in creating synthetic life, deepening our understanding of conditions that give rise to living entities. And on the horizon are sophisticated telescopes to detect and characterize exoplanets most likely to harbor life. Life in the Cosmos offers a thorough overview of the burgeoning field of astrobiology, including the salient methods and paradigms involved in the search for extraterrestrial life and intelligence. Manasvi Lingam and Abraham Loeb tackle three areas of interest in hunting for life Òout thereÓ: first, the pathways by which life originates and evolves; second, planetary and stellar factors that affect the habitability of worlds, with an eye on the biomarkers that may reveal the presence of microbial life; and finally, the detection of technological signals that could be indicative of intelligence. Drawing on empirical data from observations and experiments, as well as the latest theoretical and computational developments, the authors make a compelling scientific case for the search for life beyond what we can currently see. Meticulous and comprehensive, Life in the Cosmos is a master class from top researchers in astrobiology, suggesting that the answer to our age-old question is closer than ever before.
Download or read book Biosignatures for Astrobiology written by Barbara Cavalazzi and published by Springer. This book was released on 2018-10-01 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book aims at providing a brief but broad overview of biosignatures. The topics addressed range from prebiotic signatures in extraterrestrial materials to the signatures characterising extant life as well as fossilised life, biosignatures related to space, and space flight instrumentation to detect biosignatures either in situ or from orbit. The book ends with philosophical reflections on the implications of life elsewhere. In the 15 chapters written by an interdisciplinary team of experts, it provides both detailed explanations on the nature of biosignatures as well as useful case studies showing how they are used and identified in ancient rocks, for example. One case study addresses the controversial finding of traces of fossil life in a meteorite from Mars. The book will be of interest not only to astrobiologists but also to terrestrial paleontologists as well as any reader interested in the prospects of finding a second example of life on another planet.
Download or read book How to Find a Habitable Planet written by James F. Kasting and published by Princeton University Press. This book was released on 2021-12-07 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: The amazing science behind the search for Earth-like planets Ever since Carl Sagan first predicted that extraterrestrial civilizations must number in the millions, the search for life on other planets has gripped our imagination. Is Earth so rare that advanced life forms like us—or even the simplest biological organisms—are unique to the universe? How to Find a Habitable Planet describes how scientists are testing Sagan's prediction, and demonstrates why Earth may not be so rare after all. James Kasting has worked closely with NASA in its mission to detect habitable worlds outside our solar system, and in this book he introduces readers to the advanced methodologies being used in this extraordinary quest. He addresses the compelling questions that planetary scientists grapple with today: What exactly makes a planet habitable? What are the signatures of life astronomers should look for when they scan the heavens for habitable worlds? In providing answers, Kasting explains why Earth has remained habitable despite a substantial rise in solar luminosity over time, and why our neighbors, Venus and Mars, haven't. If other Earth-sized planets endowed with enough water and carbon are out there, he argues, chances are good that some of those planets sustain life. Kasting describes the efforts under way to find them, and predicts that future discoveries will profoundly alter our view of the universe and our place in it. This book is a must-read for anyone who has ever dreamed of finding other planets like ours—and perhaps even life like ours—in the cosmos. In a new afterword, Kasting presents some recent breakthroughs in the search for exoplanets and discusses the challenges facing space programs in the near future.
Download or read book Signature in the Cell written by Stephen C. Meyer and published by Zondervan. This book was released on 2009-06-23 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book attempts to make a comprehensive, interdisciplinary case for a new view of the origin of life"--Prologue.
Download or read book The Search for Life s Origins written by National Research Council and published by National Academies Press. This book was released on 1990-02-01 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of planetary biology and chemical evolution draws together experts in astronomy, paleobiology, biochemistry, and space science who work together to understand the evolution of living systems. This field has made exciting discoveries that shed light on how organic compounds came together to form self-replicating molecules-the origin of life. This volume updates that progress and offers recommendations on research programs-including an ambitious effort centered on Mars-to advance the field over the next 10 to 15 years. The book presents a wide range of data and research results on these and other issues: The biogenic elements and their interaction in the interstellar clouds and in solar nebulae. Early planetary environments and the conditions that lead to the origin of life. The evolution of cellular and multicellular life. The search for life outside the solar system. This volume will become required reading for anyone involved in the search for life's beginnings-including exobiologists, geoscientists, planetary scientists, and U.S. space and science policymakers.
Download or read book The Signature of All Things written by Elizabeth Gilbert and published by Penguin. This book was released on 2013-10-01 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: A glorious, sweeping novel of desire, ambition, and the thirst for knowledge, from the # 1 New York Times bestselling author of Eat Pray Love, Big Magic, and City of Girls In The Signature of All Things, Elizabeth Gilbert returns to fiction, inserting her inimitable voice into an enthralling story of love, adventure and discovery. Spanning much of the eighteenth and nineteenth centuries, the novel follows the fortunes of the extraordinary Whittaker family as led by the enterprising Henry Whittaker—a poor-born Englishman who makes a great fortune in the South American quinine trade, eventually becoming the richest man in Philadelphia. Born in 1800, Henry’s brilliant daughter, Alma (who inherits both her father’s money and his mind), ultimately becomes a botanist of considerable gifts herself. As Alma’s research takes her deeper into the mysteries of evolution, she falls in love with a man named Ambrose Pike who makes incomparable paintings of orchids and who draws her in the exact opposite direction—into the realm of the spiritual, the divine, and the magical. Alma is a clear-minded scientist; Ambrose a utopian artist—but what unites this unlikely couple is a desperate need to understand the workings of this world and the mechanisms behind all life. Exquisitely researched and told at a galloping pace, The Signature of All Things soars across the globe—from London to Peru to Philadelphia to Tahiti to Amsterdam, and beyond. Along the way, the story is peopled with unforgettable characters: missionaries, abolitionists, adventurers, astronomers, sea captains, geniuses, and the quite mad. But most memorable of all, it is the story of Alma Whittaker, who—born in the Age of Enlightenment, but living well into the Industrial Revolution—bears witness to that extraordinary moment in human history when all the old assumptions about science, religion, commerce, and class were exploding into dangerous new ideas. Written in the bold, questing spirit of that singular time, Gilbert’s wise, deep, and spellbinding tale is certain to capture the hearts and minds of readers.
Download or read book Astrobiology written by Charles S. Cockell and published by John Wiley & Sons. This book was released on 2015-09-29 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Astrobiology is an interdisciplinary field that asks profound scientific questions. How did life originate on the Earth? How has life persisted on the Earth for over three billion years? Is there life elsewhere in the Universe? What is the future of life on Earth? Astrobiology: Understanding Life in the Universe is an introductory text which explores the structure of living things, the formation of the elements for life in the Universe, the biological and geological history of the Earth and the habitability of other planets in our own Solar System and beyond. The book is designed to convey some of the major conceptual foundations in astrobiology that cut across a diversity of traditional fields including chemistry, biology, geosciences, physics and astronomy. It can be used to complement existing courses in these fields or as a stand-alone text for astrobiology courses. Readership: Undergraduates studying for degrees in earth or life sciences, physics, astronomy and related disciplines, as well as anyone with an interest in grasping some of the major concepts and ideas in astrobiology.
Download or read book Forging the Future of Space Science written by National Research Council and published by National Academies Press. This book was released on 2010-03-08 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Signatures in Stone written by Linda Lappin and published by PBS Publications. This book was released on 2018-03-21 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: The search for the soul of place is one of my passions as traveler, writer, and writing teacher. My work is often inspired by places: islands, ruins, old houses and buildings, and the atmospheres found there. For several years, I have been researching the "genius loci," the spirit or soul of place. The Romans and the Etruscans believed that every place--every mountain, field, body of water--had an indwelling spirit or soul, which was beneficial or harmful to human activity. And every house and household was believed to have a tutelary spirit. The soul of place was a force which shaped the character and atmosphere of a place and at the same time, an entity with which human beings were constantly interacting and communicating. This idea has stimulated me for a long time, and it has greatly influenced my writing.
Download or read book Size Limits of Very Small Microorganisms written by National Research Council and published by National Academies Press. This book was released on 1999-09-13 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: How small can a free-living organism be? On the surface, this question is straightforward-in principle, the smallest cells can be identified and measured. But understanding what factors determine this lower limit, and addressing the host of other questions that follow on from this knowledge, require a fundamental understanding of the chemistry and ecology of cellular life. The recent report of evidence for life in a martian meteorite and the prospect of searching for biological signatures in intelligently chosen samples from Mars and elsewhere bring a new immediacy to such questions. How do we recognize the morphological or chemical remnants of life in rocks deposited 4 billion years ago on another planet? Are the empirical limits on cell size identified by observation on Earth applicable to life wherever it may occur, or is minimum size a function of the particular chemistry of an individual planetary surface? These questions formed the focus of a workshop on the size limits of very small organisms, organized by the Steering .Group for the Workshop on Size Limits of Very Small Microorganisms and held on October 22 and 23, 1998. Eighteen invited panelists, representing fields ranging from cell biology and molecular genetics to paleontology and mineralogy, joined with an almost equal number of other participants in a wide-ranging exploration of minimum cell size and the challenge of interpreting micro- and nano-scale features of sedimentary rocks found on Earth or elsewhere in the solar system. This document contains the proceedings of that workshop. It includes position papers presented by the individual panelists, arranged by panel, along with a summary, for each of the four sessions, of extensive roundtable discussions that involved the panelists as well as other workshop participants.
Download or read book Signing Their Lives Away written by Denise Kiernan and published by Quirk Books. This book was released on 2009 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents the lives, deaths, and scandals involving the fifty-six signers of the Declaration of Independence, including John Adams, John Hancock, and Thomas Jefferson.
Download or read book The Limits of Organic Life in Planetary Systems written by National Research Council and published by National Academies Press. This book was released on 2007-06-26 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Planetary Diversity written by Elizabeth J. Tasker and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The last thirty years have seen an irrevocable change in the field of planetary science with the discovery of the first planets around stars other than our own Sun. While approximately twenty percent of the exoplanets we have discovered are close in size to the Earth, the similarity of their surface environment to our home world remains unknown. This book presents an exploration of the potential diversity of rocky planets through a quantitative study of how planetary processes change as properties deviate from the Earth. Changes in four specific properties are considered: the presence of a magnetic field, the production and loss of internal heat, planetary composition and volatile abundance.
Download or read book Astrobiology written by Andrew May and published by Icon Books. This book was released on 2019-09-05 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extraterrestrial life is a common theme in science fiction, but is it a serious prospect in the real world? Astrobiology is the emerging field of science that seeks to answer this question. The possibility of life elsewhere in the cosmos is one of the most profound subjects that human beings can ponder. Astrophysicist Andrew May gives an expert overview of our current state of knowledge, looking at how life started on Earth, the tell-tale 'signatures' it produces, and how such signatures might be detected elsewhere in the Solar System or on the many 'exoplanets' now being discovered by the Kepler and TESS missions. Along the way the book addresses key questions such as the riddle of Fermi's paradox ('Where is everybody?') and the crucial role of DNA and water – they're essential to 'life as we know it', but is the same true of alien life? And the really big question: when we eventually find extraterrestrials, will they be friendly or hostile?
Download or read book Forensic Examination of Signatures written by Linton A. Mohammed and published by Academic Press. This book was released on 2019-06-06 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forensic Examination of Signatures explains the neuroscience and kinematics of signature production, giving specific details of research carried out on the topic. It provides practical details for forensic examiners to consider when examining signatures, especially now that we are in an era of increasing digital signatures. Written by a foremost forensic document examiner, this reference provides FDEs, the legal community, the judiciary, and the academic community with a comprehensive record of the state-of-the-art of signature examination and plans for addressing future research into improving the reliability of FDEs. - Devoted solely to signature examination - Includes examination methods and the latest approaches to report conclusions and testimony - Written by an internationally recognized forensic document examiner
Download or read book Europa written by Robert T. Pappalardo and published by University of Arizona Press. This book was released on 2009-07-30 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: Few worlds are as tantalizing and enigmatic as Europa, whose complex icy surface intimates the presence of an ocean below. Europa beckons for our understanding and future exploration, enticing us with the possibilities of a water-rich environment and the potential for life beyond Earth. This volume in the Space Science Series, with more than 80 contributing authors, reveals the discovery and current understanding of Europa’s icy shell, subsurface ocean, presumably active interior, and myriad inherent interactions within the Jupiter environment. Europa is the foundation upon which the coming decades of scientific advancement and exploration of this world will be built, making it indispensable for researchers, students, and all who hold a passion for exploration.
