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Lakes on Mars

Lakes on Mars PDF Author: Nathalie A. Cabrol
Publisher: Elsevier
ISBN: 9780080931623
Category : Science
Languages : en
Pages : 410

Book Description
On Earth, lakes provide favorable environments for the development of life and its preservation as fossils. They are extremely sensitive to climate fluctuations and to conditions within their watersheds. As such, lakes are unique markers of the impact of environmental changes. Past and current missions have now demonstrated that water once flowed at the surface of Mars early in its history. Evidence of ancient ponding has been uncovered at scales ranging from a few kilometers to possibly that of the Arctic ocean. Whether life existed on Mars is still unknown; upcoming missions may find critical evidence to address this question in ancient lakebeds as clues about Mars’ climate evolution and its habitability potential are still preserved in their sedimentary record. Lakes on Mars is the first review on this subject. It is written by leading planetary scientists who have dedicated their careers to searching and exploring the questions of water, lakes, and oceans on Mars through their involvement in planetary exploration, and the analysis of orbital and ground data beginning with Viking up to the most recent missions. In thirteen chapters, Lakes on Mars critically discusses new data and explores the role that water played in the evolution of the surface of Mars, the past hydrological provinces of the planet, the possibility of heated lake habitats through enhanced geothermal flux associated with volcanic activity and impact cratering. The book also explores alternate hypotheses to explain the geological record. Topographic, morphologic, stratigraphic, and mineralogic evidence are presented that suggest successions of ancient lake environments in Valles Marineris and Hellas. The existence of large lakes and/or small oceans in Elysium and the Northern Plains is supported both by the global distribution of deltaic deposits and by equipotential surfaces that may reflect their past margins. Whether those environments were conducive to life has yet to be demonstrated but from comparison with our planet, their sedimentary deposits may provide the best opportunity to find its record, if any. The final chapters explore the impact of climate variability on declining lake habitats in one of the closest terrestrial analogs to Mars at the Noachian/Hesperian transition, identify the geologic, morphologic and mineralogic signatures of ancient lakes to be searched for on Mars, and present the case for landing the Mars Science Laboratory mission in such an environment. First review on the subject by worldwide leading authorities in the field New studies with most recent data, new images, figures, and maps Most recent results from research in terrestrial analogs

Lakes on Mars

Lakes on Mars PDF Author: Nathalie A. Cabrol
Publisher: Elsevier
ISBN: 9780080931623
Category : Science
Languages : en
Pages : 410

Book Description
On Earth, lakes provide favorable environments for the development of life and its preservation as fossils. They are extremely sensitive to climate fluctuations and to conditions within their watersheds. As such, lakes are unique markers of the impact of environmental changes. Past and current missions have now demonstrated that water once flowed at the surface of Mars early in its history. Evidence of ancient ponding has been uncovered at scales ranging from a few kilometers to possibly that of the Arctic ocean. Whether life existed on Mars is still unknown; upcoming missions may find critical evidence to address this question in ancient lakebeds as clues about Mars’ climate evolution and its habitability potential are still preserved in their sedimentary record. Lakes on Mars is the first review on this subject. It is written by leading planetary scientists who have dedicated their careers to searching and exploring the questions of water, lakes, and oceans on Mars through their involvement in planetary exploration, and the analysis of orbital and ground data beginning with Viking up to the most recent missions. In thirteen chapters, Lakes on Mars critically discusses new data and explores the role that water played in the evolution of the surface of Mars, the past hydrological provinces of the planet, the possibility of heated lake habitats through enhanced geothermal flux associated with volcanic activity and impact cratering. The book also explores alternate hypotheses to explain the geological record. Topographic, morphologic, stratigraphic, and mineralogic evidence are presented that suggest successions of ancient lake environments in Valles Marineris and Hellas. The existence of large lakes and/or small oceans in Elysium and the Northern Plains is supported both by the global distribution of deltaic deposits and by equipotential surfaces that may reflect their past margins. Whether those environments were conducive to life has yet to be demonstrated but from comparison with our planet, their sedimentary deposits may provide the best opportunity to find its record, if any. The final chapters explore the impact of climate variability on declining lake habitats in one of the closest terrestrial analogs to Mars at the Noachian/Hesperian transition, identify the geologic, morphologic and mineralogic signatures of ancient lakes to be searched for on Mars, and present the case for landing the Mars Science Laboratory mission in such an environment. First review on the subject by worldwide leading authorities in the field New studies with most recent data, new images, figures, and maps Most recent results from research in terrestrial analogs

From Habitability to Life on Mars

From Habitability to Life on Mars PDF Author: Nathalie A. Cabrol
Publisher: Elsevier
ISBN: 0128099364
Category : Science
Languages : en
Pages : 390

Book Description
From Habitability to Life on Mars explores the current state of knowledge and questions on the past habitability of Mars and the role that rapid environmental changes may have played in the ability of prebiotic chemistry to transition to life. It investigates the role that such changes may have played in the preservation of biosignatures in the geological record and what this means for exploration strategies. Throughout the book, the authors show how the investigation of terrestrial analogs to early Martian habitats under various climates and environmental extremes provide critical clues to understand where, what and how to search for biosignatures on Mars. The authors present an introduction to the newest developments and state-of-the-art remote and in situ detection strategies and technologies that are being currently developed to support the upcoming ExoMars and Mars 2020 missions. They show how the current orbital and ground exploration is guiding the selection for future landing sites. Finally, the book concludes by discussing the critical question of the implications and ethics of finding life on Mars. Edited by the lead on a NASA project that searches for habitability and life on Mars leading to the Mars 2020 mission Presents the evidence, questions and answers we have today (including a summary of the current state of knowledge in advance of the ESA ExoMars and NASA Mars 2020 missions) Includes contributions from authors directly involved in past, current and upcoming Mars missions Provides key information as to how Mars rovers, such as ExoMars and Mars 2020, will address the search for life on Mars with their instrumentation

The Sirens of Mars

The Sirens of Mars PDF Author: Sarah Stewart Johnson
Publisher: Crown
ISBN: 1101904828
Category : Science
Languages : en
Pages : 304

Book Description
“Sarah Stewart Johnson interweaves her own coming-of-age story as a planetary scientist with a vivid history of the exploration of Mars in this celebration of human curiosity, passion, and perseverance.”—Alan Lightman, author of Einstein’s Dreams WINNER OF THE PHI BETA KAPPA AWARD FOR SCIENCE • NAMED ONE OF THE BEST BOOKS OF THE YEAR BY The New York Times Book Review • Times (UK) • Library Journal “Lovely . . . Johnson’s prose swirls with lyrical wonder, as varied and multihued as the apricot deserts, butterscotch skies and blue sunsets of Mars.”—Anthony Doerr, The New York Times Book Review Mars was once similar to Earth, but today there are no rivers, no lakes, no oceans. Coated in red dust, the terrain is bewilderingly empty. And yet multiple spacecraft are circling Mars, sweeping over Terra Sabaea, Syrtis Major, the dunes of Elysium, and Mare Sirenum—on the brink, perhaps, of a staggering find, one that would inspire humankind as much as any discovery in the history of modern science. In this beautifully observed, deeply personal book, Georgetown scientist Sarah Stewart Johnson tells the story of how she and other researchers have scoured Mars for signs of life, transforming the planet from a distant point of light into a world of its own. Johnson’s fascination with Mars began as a child in Kentucky, turning over rocks with her father and looking at planets in the night sky. She now conducts fieldwork in some of Earth’s most hostile environments, such as the Dry Valleys of Antarctica and the salt flats of Western Australia, developing methods for detecting life on other worlds. Here, with poetic precision, she interlaces her own personal journey—as a female scientist and a mother—with tales of other seekers, from Percival Lowell, who was convinced that a utopian society existed on Mars, to Audouin Dollfus, who tried to carry out astronomical observations from a stratospheric balloon. In the process, she shows how the story of Mars is also a story about Earth: This other world has been our mirror, our foil, a telltale reflection of our own anxieties and yearnings. Empathetic and evocative, The Sirens of Mars offers an unlikely natural history of a place where no human has ever set foot, while providing a vivid portrait of our quest to defy our isolation in the cosmos.

Life on Mars

Life on Mars PDF Author: David A. Weintraub
Publisher: Princeton University Press
ISBN: 0691209251
Category : Science
Languages : en
Pages : 326

Book Description
"Does life exist on Mars? The question has captivated humans for centuries, but today it has taken on new urgency. NASA plans to send astronauts to Mars orbit by the 2030s. SpaceX wants to go by 2024, while Mars One wants to land a permanent settlement there in 2032. As we gear up for missions like these, we have a responsibility to think deeply about what kinds of life may already inhabit the planet -- and whether we have the right to invite ourselves in. This book tells the complete story of the quest to answer one of the most tantalizing questions in astronomy. But it is more than a history. Life on Mars explains what we need to know before we go."--From Amazon.com.

Water on Mars and Life

Water on Mars and Life PDF Author: Tetsuya Tokano
Publisher: Springer Science & Business Media
ISBN: 9783540206248
Category : Science
Languages : en
Pages : 360

Book Description
Growing evidence, based on observations from orbiters, landers and telescopes, indicates that Mars may still have numerous hidden water reservoirs. "Water on Mars and Life" surveys recent advances made in research into water on Mars together with its astrobiological implications. Addresses not only scientists working in the field but also nonspecialists and students in search of a high-level but accessible introduction to this exciting field of research.

How We'll Live on Mars

How We'll Live on Mars PDF Author: Stephen Petranek
Publisher: Simon and Schuster
ISBN: 1476784779
Category : Science
Languages : en
Pages : 96

Book Description
Award-winning journalist Stephen Petranek says humans will live on Mars by 2027. Now he makes the case that living on Mars is not just plausible, but inevitable. It sounds like science fiction, but Stephen Petranek considers it fact: Within twenty years, humans will live on Mars. We’ll need to. In this sweeping, provocative book that mixes business, science, and human reporting, Petranek makes the case that living on Mars is an essential back-up plan for humanity and explains in fascinating detail just how it will happen. The race is on. Private companies, driven by iconoclastic entrepreneurs, such as Elon Musk, Jeff Bezos, Paul Allen, and Sir Richard Branson; Dutch reality show and space mission Mars One; NASA; and the Chinese government are among the many groups competing to plant the first stake on Mars and open the door for human habitation. Why go to Mars? Life on Mars has potential life-saving possibilities for everyone on earth. Depleting water supplies, overwhelming climate change, and a host of other disasters—from terrorist attacks to meteor strikes—all loom large. We must become a space-faring species to survive. We have the technology not only to get humans to Mars, but to convert Mars into another habitable planet. It will likely take 300 years to “terraform” Mars, as the jargon goes, but we can turn it into a veritable second Garden of Eden. And we can live there, in specially designed habitations, within the next twenty years. In this exciting chronicle, Petranek introduces the circus of lively characters all engaged in a dramatic effort to be the first to settle the Red Planet. How We’ll Live on Mars brings firsthand reporting, interviews with key participants, and extensive research to bear on the question of how we can expect to see life on Mars within the next twenty years.

The Surface of Mars

The Surface of Mars PDF Author: Michael H. Carr
Publisher: Cambridge University Press
ISBN: 1139461249
Category : Science
Languages : en
Pages : 283

Book Description
Our knowledge of Mars has grown enormously over the last decade as a result of the Mars Global Surveyor, Mars Odyssey, Mars Express, and the two Mars Rover missions. This book is a systematic summary of what we have learnt about the geological evolution of Mars as a result of these missions. It describes the diverse Martian surface features and summarizes current ideas as to how, when, and under what conditions they formed, and explores how Earth and Mars differ and why the two planets evolved so differently. The author also discusses possible implications of the geologic history for the origin and survival of indigenous Martian life. Up-to-date and highly illustrated, this book will be a principal reference for researchers and graduate students in planetary science. The comprehensive list of references will also assist readers in pursuing further information on the subject. Colour images can be found at www.cambridge.org/9780521872010.

The Mars Mystery

The Mars Mystery PDF Author: Graham Hancock
Publisher: Crown
ISBN: 0307557790
Category : Science
Languages : en
Pages : 472

Book Description
An asteroid transformed Mars from a lush planet with rivers and oceans into a bleak and icy hell. Is Earth condemned to the same fate, or can we protect ourselves and our planet from extinction? In his most riveting and revealing book yet, Graham Hancock examines the evidence that the barren Red Planet was once home to a lush environment of flowing rivers, lakes, and oceans. Could Mars have sustained life and civilization? Megaliths found on the parched shores of Cydonia, a former Martian ocean, mirror the geometrical conventions of the pyramids at Egypt's Giza necropolis. Especially startling is a Sphinx-like structure depicting a face with distinguishable diadem, teeth, mouth and an Egyptian-style headdress. Might there be a connection between the structures of Egypt and those of Mars? Why does NASA continue to dismiss these remarkable anomalies as "a trick of light"? Hancock points to the intriguing possibility that ancient Martian civilization is communicating with us through the remarkable structures it left behind. In exploring the possible traces left by the Martian civilization and the cosmic cataclysm that may have ended it, The Mars Mystery is both an illumination of our ancient past and a warning--that we still have time to heed--about our ultimate fate.

Magnificent Mars

Magnificent Mars PDF Author: Ken Croswell
Publisher: Simon and Schuster
ISBN: 0743226011
Category : Science
Languages : en
Pages : 238

Book Description
Mars has long offered the prospect of another living world near Earth. Although NASA's first spacecraft dashed visions of little green men tending canals, recent voyages have painted a picture of an intriguing planet that may have once resembled Earth, with warmth, water, and possibly life. Mars may answer the great question "Are we alone?"; for if Mars, like Earth, gave rise to life, then trillions of other worlds throughout the universe have surely done the same. Harvard-trained astronomer Ken Croswell set the standard for elegance and eloquence with his stunning photographic triumph, Magnificent Universe. Now, with insightful prose and astonishing images, he presents the red planet's full glory in Magnificent Mars, showing volcanoes taller than Mount Everest, spiral-shaped polar caps of ice, and a canyon system that could stretch from Ohio to California. Here is a concise synthesis of the latest research on Mars, accompanied with the very best full-color images, expertly reprocessed to look even better than NASA's own versions, from the Hubble Space Telescope, Viking, Pathfinder, Mars Global Surveyor, Mars Odyssey, and other spacecraft. Highlights include a foldout panorama of the Martian surface; a never-before-published, rainbow-colored topographic map; and a sequence showing a full rotation of Mars, courtesy of the Hubble Space Telescope. Many of these images have never appeared in a book before. Few have ever looked so good. In lyrical prose, Dr. Croswell weaves these stupendous images into a virtual tour of Mars by organizing them around the four elements -- Earth, Air, Fire, and Water. From the northern plains of Vastitas Borealis to the towering Olympus Mons and other volcanoes of the Tharsis bulge, we explore the red planet's geology, topography, and surface. From the frigid climate to the massive dust storms that can engulf the entire globe, we examine the thin Martian atmosphere and the clues it preserves to the planet's wetter past. And, from the flood channels that spill into Chryse Planitia to the vast potential lakebed of ancient Hellas, we see stunning images of ancient rivers and floods, triggering speculation that a warm, wet Mars may have given rise to life that survives to this day. The tour concludes with a voyage to the planet's two potato-shaped moons, Phobos and Deimos, complete with rainbow-colored topographic maps. Unique color-coded tables on Mars, its atmosphere, its life history, its moons, and NASA missions to the planets appear in a useful reference section, along with a glossary and suggestions for further reading. With its large format, superb images, and compelling text, Magnificent Mars is the next best thing to standing on the red planet itself. In future years NASA will launch numerous missions to Mars, and Magnificent Mars is the definitive guide to what these spacecraft will see. Indeed, the first human explorers to Mars may want to take a copy of Magnificent Mars aboard their spaceship.

The Lakes of Mars

The Lakes of Mars PDF Author: Chris Orsman
Publisher: Auckland University Press
ISBN: 1775581896
Category : Poetry
Languages : en
Pages : 80

Book Description
This stunning collection of poems is a characteristic mix of thoughtful reflection and precise imagery of landscape. Each piece captures an ordinary moment with a visual clarity but always pushes the descriptions further, broadening the intellectual and moral meaning. Finding a true balance, they re-create historical moments with vividness while evoking the gifts and loss of the past. From the Wellington hills to the light art of Bill Culbert, the poetry displayed here is distinctive, scrupulous, and splendid.