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The world’s leading textbook on astrobiology—ideal for an introductory one-semester course and now fully revised and updated Are we alone in the cosmos? How are scientists seeking signs of life beyond our home planet? Could we colonize other planets, moons, or even other star systems? This introductory textbook, written by a team of four renowned science communicators, educators, and researchers, tells the amazing story of how modern science is seeking the answers to these and other fascinating questions. They are the questions that are at the heart of the highly interdisciplinary field of astrobiology, the study of life in the universe. Written in an accessible, conversational style for anyone intrigued by the possibilities of life in the solar system and beyond, Life in the Universe is an ideal place to start learning about the latest discoveries and unsolved mysteries in the field. From the most recent missions to Saturn’s moons and our neighboring planet Mars to revolutionary discoveries of thousands of exoplanets, from the puzzle of life’s beginning on Earth to the latest efforts in the search for intelligent life elsewhere, this book captures the imagination and enriches the reader’s understanding of how astronomers, planetary scientists, biologists, and other scientists make progress at the cutting edge of this dynamic field. Enriched with a wealth of engaging features, this textbook brings any citizen of the cosmos up to speed with the scientific quest to discover whether we are alone or part of a universe full of life. An acclaimed text designed to inspire students of all backgrounds to explore foundational questions about life in the cosmos Completely revised and updated to include the latest developments in the field, including recent exploratory space missions to Mars, frontier exoplanet science, research on the origin of life on Earth, and more Enriched with helpful learning aids, including in-chapter Think about It questions, optional Do the Math and Special Topic boxes, Movie Madness boxes, end-of-chapter exercises and problems, quick quizzes, and much more Supported by instructor’s resources, including an illustration package and test bank, available upon request
Life in the Universe takes non-science majors on a journey through the solar system and beyond, using a rigorous yet accessible introduction to astronomy, biology, and geology to explain natural phenomena and to explore profound scientific questions about astrobiology. The Third Edition has been thoroughly revised to include updated scientific discoveries, new Cosmic Context two-page spreads, and an updated Companion Website. Designed for astrobiology courses but also suitable for introductory astronomy courses, Life in the Universe captures your imagination by exploring fundamental pan-scientific questions: What is life? How did life begin on Earth? What are the most extreme forms of life currently known? Is it reasonable to imagine life beyond Earth? The text motivates you to develop basic reasoning skills and an understanding of the process of science through skillful writing and a wealth of pedagogical features, such as Learning Goals that keep you focused on key concepts. Sidebars provide optional mathematical material for courses that fulfill quantitative requirements.
Freeman’s briefest, least expensive introductory astronomy text. Discovering the Essential Universe, Fourth Edition (DEU 4e) is designed to help students overcome common misconceptions about astronomy. It provides up-to-date explanations of core concepts in a flexible and student-friendly text, supported by an impressive collection of multimedia resources developed by astronomy education researchers.
In Cosmic Company, Seth Shostak and Alex Barnett ponder the possibility of aliens visiting the Earth, as well as the consequences of receiving a signal from the cosmos proving we're neither alone, nor the most intelligent life forms. They explain why scientists think life might exist on other worlds, and how we might contact it. Shostak and Barnett, experienced writers of popular astronomy, provide an accessible overveiw of the science and technology behind the search for life in the universe. Seth Shostak is a Senior Astronomer at the SETI Institute where he is involved in many of the outreach activities of the Institute, including editing the newsletter, overseeing the Web site, giving talks and writing magazine articles about SETI. He also teaches several informal education classes on astronomy and other topics in the Bay Area. Before coming to SETI, Seth did research work on galaxies using radio telescopes at observatories and universities in America and Europe. Alex Barnett is Programme Director at the National Space Centre. She is well-known in the science centre, planetarium and media worlds, particularly for public and educational programmes involving space and astronomy. She presents BBC's Final Frontier a space and astronomy programme.
Habitability of the Universe before Earth: Astrobiology: Exploring Life on Earth and Beyond (series) examines the times and places—before life existed on Earth—that might have provided suitable environments for life to occur, addressing the question: Is life on Earth de novo, or derived from previous life? The universe changed considerably during the vast epoch between the Big Bang 13.8 billion years ago and the first evidence of life on Earth 4.3 billion years ago, providing significant time and space to contemplate where, when and under what circumstances life might have arisen. No other book covers this cosmic time period from the point of view of its potential for life. The series covers a broad range of topics encompassing laboratory and field research into the origins and evolution of life on Earth, life in extreme environments and the search for habitable environments in our solar system and beyond, including exoplanets, exomoons and astronomical biosignatures. - Provides multiple hypotheses on the origin of life and distribution of living organisms in space - Explores the diversity of physical environments that may support the origin and evolution of life - Integrates contemporary views in biology and cosmology, and provides reasons that life is far more mobile in space than most people expect - Includes access to a companion web site featuring supplementary information such as animated computer simulations
ARE WE ALONE IN THE UNIVERSE? In his latest far-reaching book, The Fifth Miracle, internationally acclaimed physicist and writer Paul Davies confronts one of science's great outstanding mysteries -- the origin of life. Three and a half billion years ago, Mars resembled Earth. It was warm and wet and could have supported primitive organisms. If life once existed on Mars, might it have originated there and traveled to Earth inside meteorites blasted into space by cosmic impacts? Davies builds on the latest scientific discoveries and theories to address the larger question: What, exactly, is life? Is it the inevitable by-product of physical laws, as many scientists maintain, or an almost miraculous accident? Are we alone in the universe, or will life emerge on all Earth-like planets? And if there is life elsewhere in the universe, is it preordained to evolve toward greater complexity and intelligence? On the answers to these deep questions hinges the ultimate purpose of mankind -- who we are and what our place might be in the unfolding drama of the cosmos.
Is there life beyond Earth? NASA astrobiologist Dr. Chris McKay has searched the earth's most extreme environments on his quest to understand what factors are necessary to sustain life. Pamela S. Turner offers readers an inside look at Dr. McKay's research, explaining his findings and his hopes for future exploration both on Earth and beyond. Behind-the-scenes photos capture Dr. McKay, his expeditions, and the amazing microbes that survive against all odds.
Investigates how scientists, particularly Jill Tarter, Director of the SETI Institute in Mountain View, California, use twenty-first century technology to investigate whether life exists on other planets.
Inside the epic quest to find life on the water-rich moons at the outer reaches of the solar system Where is the best place to find life beyond Earth? We often look to Mars as the most promising site in our solar system, but recent scientific missions have revealed that some of the most habitable real estate may actually lie farther away. Beneath the frozen crusts of several of the small, ice-covered moons of Jupiter and Saturn lurk vast oceans that may have existed for as long as Earth, and together may contain more than fifty times its total volume of liquid water. Could there be organisms living in their depths? Alien Oceans reveals the science behind the thrilling quest to find out. Kevin Peter Hand is one of today's leading NASA scientists, and his pioneering research has taken him on expeditions around the world. In this captivating account of scientific discovery, he brings together insights from planetary science, biology, and the adventures of scientists like himself to explain how we know that oceans exist within moons of the outer solar system, like Europa, Titan, and Enceladus. He shows how the exploration of Earth's oceans is informing our understanding of the potential habitability of these icy moons, and draws lessons from what we have learned about the origins of life on our own planet to consider how life could arise on these distant worlds. Alien Oceans describes what lies ahead in our search for life in our solar system and beyond, setting the stage for the transformative discoveries that may await us.