The Search For Life On Other Planets PDF Download
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| 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.
| 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 | : National Research Council |
| Publisher | : National Academies Press |
| Total Pages | : 161 |
| Release | : 1990-02-01 |
| Genre | : Science |
| ISBN | : 0309042461 |
Download The Search for Life's Origins Book in PDF, ePub and Kindle
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.
| 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 | : Kevin Hand |
| Publisher | : Princeton University Press |
| Total Pages | : 296 |
| Release | : 2021-09-21 |
| Genre | : Nature |
| ISBN | : 0691227284 |
Download Alien Oceans Book in PDF, ePub and Kindle
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.
| 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 | : Gregory L. Vogt |
| Publisher | : Lerner Publications |
| Total Pages | : 44 |
| Release | : 2010-01-01 |
| Genre | : Juvenile Nonfiction |
| ISBN | : 0761359451 |
Download Is There Life on Other Planets? Book in PDF, ePub and Kindle
There is no gravity in space. The North Star never changes its position in the sky. Earth’s shadow causes the phases of the moon. You may have heard these common sayings or beliefs before. But are they really true? Can they be proven using science? Let’s investigate seventeen statements about space and find out which ones are right, which ones are wrong, and which ones still stump scientists! Find out whether astronauts really landed on the moon! Discover whether it’s true that the same side of the Moon is always dark! See if you can tell the difference between fact and fiction with Is That a Fact?
| Author | : Michael D. Lemonick |
| Publisher | : Bloomsbury Publishing USA |
| Total Pages | : 304 |
| Release | : 2012-10-16 |
| Genre | : Science |
| ISBN | : 0802779026 |
Download Mirror Earth Book in PDF, ePub and Kindle
In the mid-1990s, astronomers made history when they began to find planets orbiting stars in the Milky Way. More than eight hundred planets have been found since then, yet none of them is anything like Earth and none could support life. Now, armed with more powerful technology, planet hunters are racing to find a true twin of Earth. Science writer Michael Lemonick has unique access to these exoplaneteers, as they call themselves, and Mirror Earth unveils their passionate quest. Unlike competitors in other races, Geoff Marcy, Bill Borucki, David Charbonneau, Sara Seager, and others actually consult and cooperate with one another. But only one will be the first to find Earth's twin. Mirror Earth tells the story of their competition.
| Author | : Michael E. Summers |
| Publisher | : Smithsonian Institution |
| Total Pages | : 224 |
| Release | : 2017-03-14 |
| Genre | : Science |
| ISBN | : 1588345955 |
Download Exoplanets Book in PDF, ePub and Kindle
The past few years have seen an incredible explosion in our knowledge of the universe. Since its 2009 launch, the Kepler satellite has discovered more than two thousand exoplanets, or planets outside our solar system. More exoplanets are being discovered all the time, and even more remarkable than the sheer number of exoplanets is their variety. In Exoplanets, astronomer Michael Summers and physicist James Trefil explore these remarkable recent discoveries: planets revolving around pulsars, planets made of diamond, planets that are mostly water, and numerous rogue planets wandering through the emptiness of space. This captivating book reveals the latest discoveries and argues that the incredible richness and complexity we are finding necessitates a change in our questions and mental paradigms. In short, we have to change how we think about the universe and our place in it, because it is stranger and more interesting than we could have imagined.
| 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.
