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

Comprehensive coverage of all aspects of space application oriented fault tolerance techniques Experienced expert author working on fault tolerance for Chinese space program for almost three decades Initiatively provides a systematic texts for the cutting-edge fault tolerance techniques in spacecraft control computer, with emphasis on practical engineering knowledge Presents fundamental and advanced theories and technologies in a logical and easy-to-understand manner Beneficial to readers inside and outside the area of space applications

This contributed monograph is the first work to present the latest results and findings on the new topic and hot field of planetary exploration and sciences, e.g., lunar surface iron content and mare orientale basalts, Earth's gravity field, Martian radar exploration, crater recognition, ionosphere and astrobiology, Comet ionosphere, exoplanetary atmospheres and planet formation in binaries. By providing detailed theory and examples, this book helps readers to quickly familiarize themselves with the field. In addition, it offers a special section on next-generation planetary exploration, which opens a new landscape for future exploration plans and missions. Prof. Shuanggen Jin works at the Shanghai Astronomical Observatory, Chinese Academy of Sciences, China. Dr. Nader Haghighipour works at the University of Hawaii-Manoa, USA. Prof. Wing-Huen Ip works at the National Central University, Taiwan.

Reducing Space Mission Cost is the first complete treatment of the technology, process, and problems in the most critical areas of modern spaceflight. The demand to reduce cost is unrelenting. This pioneering book addresses all aspects of this problem, including: * Technology and processes for reducing cost * Cost reduction in mission engineering, spacecraft design, manufacture, launch, and operations * Implementation methods and problems * The price of reducing cost *10 detailed case studies of what works in practice in: * Science missions * Interplanetary probes * Communications spacecraft * Test and Applications missions Beginning on the inside front cover, this book provides real cost data on a variety of missions, systems, and subsystems. According to the authors: 'Reducing mission cost is hard enough if you know what the real costs are, and virtually impossible if you don't.' This book challenges traditional methods, yet recognizes that all space programs are run to minimize cost within the rules under which they are built and flown. It provides practical recipes for reducing cost in both new and ongoing missions and discusses what works, what government can do to help, and what methods intended to reduce cost may be counterproductive and unintentionally increase cost. As shown on the inside rear cover, the case studies described in the book have reduced total mission cost by 80% to more than 90% with respect to projections by traditional cost methods. This book is a follow-on to the now standard text and reference, Space Mission Analysis and Design, also edited by Drs. Wertz and Larson. It is required reading for professionals, students, and managers in astronautics or space sciences and managers or scientists involved in space experiments. This book shows that reducing space mission cost, without reducing reliability, is as possible as it is important for the future of space exploration.

Full coverage of the techniques needed to implement an autonomous software-defined radio system

This book introduces the reader to the concept of an autonomous software-defined radio (SDR) receiver, which automatically recognizes attributes of an incoming signal and reconfigures itself to receive it. This is in contrast to conventional software-defined radios, which are reconfigurable but not autonomous.

The book explores the challenges of such automatic reconfiguration, and explains the design and development of algorithms that permit its successful operation. Among the topics covered are automatic identification of the carrier frequency, modulation index, data rate, modulation type, and pulse shape, based on observations of the received signal.

Each distinct aspect of the design of the receiver is treated in a separate chapter written by one or more leading innovators in the field. Chapters begin with a problem statement and then offer a full mathematical derivation of an appropriate solution, a decision metric or loop-structure as appropriate, and performance results.

Two of the chapters serve specifically to pull all the individual elements together and help readers see how a successful autonomous SDR receiver works: Chapter 2, The Electra Radio, provides a detailed review of NASA's Electra radio, which was developed for deep space applications Chapter 11, Implementation and Interaction of Estimators and Classifiers, the final chapter, demonstrates the performance of an actual software implementation of the various algorithms working in concert with each other

In summary, all the materials and techniques that an engineer needs to implement an autonomous SDR areincluded. Although the technology is intended for deep space applications, the theoretical development and algorithms presented in this text can be applied to any terrestrial radio with the capability of processing more than one type of signal.

This book explores the relationship between space tourism and the discourse in sustainability and futures research. It offers comprehensive information on the current understanding of the space tourism industry and assesses the possible impacts of space tourism on the environment, economics, legislation and society. The volume aims to encourage more dialogue and critical examinations of aspects of space tourism related to future sustainability. From data gathered from empirical research, it provides a vision for the future of sustainable space tourism. It will be of interest to students and researchers in tourism, sustainability and futures studies, as well as individual space tourist 'hopefuls', space tourism industry operators and tourism policy regulators.

Historians have established a norm whereby President Eisenhower's actions in relation to the dawn of the space age are judged solely as a response to the Soviet launch of the Sputnik satellite, and are indicative of a passive, negative presidency. His low-key actions are seen merely as a prelude to the US triumph in space which is largely bookended first by President Kennedy's man-to-the-moon pledge in 1961, and finally by Neil Armstrong's moon landing eight years later. This book presents an alternative view of the development of space policy during Eisenhower's administration, assessing the hypothesis that his space policy was not a reaction to the heavily-propagandized Soviet satellite launches, or even the effect they caused in the US political and military elites, but the continuation of a strategic journey. This study engages with three distinct but converging strands of literature and proposes a revised interpretation of Eisenhower's actions in relation to rockets, missiles and satellites: namely that Eisenhower was operating on a parallel path to the established norm that started with the Bikini Atoll Castle H-bomb tests; developed through the CIA's reconnaissance efforts and was distilled in the Aeronautics and Space Act of 1958 which set a policy for US involvement in outer space that matched Eisenhower's desire for a balanced budget and fundamental belief in maintaining peace. President Eisenhower was not interested in joining a "space race": while national security underpinned his thinking, his space policy actions were strategic steps that actively sidestepped internecine armed forces rivalry, and provided a logical next step for both civilian and military space programs at the completion of the International Geophysical Year. In reassessing the United States' first space policy, the book adds to the revisionism under way in relation to the Eisenhower presidency, focusing on the "Helping Hands" that enabled him to wage peace.

If you had a trillion dollars and a year to spend it for the good of the world and the advancement of science, what would you do? It's an unimaginably large sum, yet it's only around one per cent of world GDP, and about the valuation of Google, Microsoft or Amazon. It's a much smaller sum than the world found to bail out its banks in 2008 or deal with Covid-19. But what could you achieve with $1 trillion? You could solve the problem of the pandemic, for one, and eradicate malaria, and maybe cure all disease. You could end global poverty. You could settle on the Moon and explore the solar system. You could build a massive particle collider to probe the nature of reality like never before. You could build quantum computers, develop artificial intelligence, or increase human lifespan. You could even create a new life form. Or how about transitioning the world to clean energy? Or preserving the rainforests, or saving all endangered species? Maybe you could refreeze the melting Arctic, launch a new sustainable agricultural revolution, and reverse climate change? How to Spend a Trillion Dollars is the ultimate thought experiment but it is also a call to arms: these are all things we could do, if we put our minds to it - and our money.

A scientist's inspiring vision of our return to the Moon as humanity's next thrilling step in space exploration Just over half a century since Neil Armstrong first stepped foot on the lunar surface, a new space race to the Moon is well underway and rapidly gaining momentum. Laying out a vision for the next fifty years, Back to the Moon is astrophysicist Joseph Silk's persuasive and impassioned case for putting scientific discovery at the forefront of lunar exploration. The Moon offers opportunities beyond our wildest imaginings, and plans to return are rapidly gaining momentum around the world. NASA aims to build a habitable orbiting space station to coordinate lunar development and exploration, while European and Chinese space agencies are planning lunar villages and the mining of precious resources dwindling here on Earth. Powerful international and commercial interests are driving the race to revisit the Moon, but lunar infrastructures could also open breathtaking vistas onto the cosmos. Silk describes how the colonization of the Moon could usher in a thrilling new age of scientific exploration, and lays out what the next fifty years of lunar science might look like. With lunar telescopes of unprecedented size situated in permanently dark polar craters and on the far side of the Moon, we could finally be poised to answer some of the most profound questions confronting humankind, including whether we are alone in the Universe and what our cosmic origins are. Addressing both the daunting challenges and the immense promise of lunar exploration and exploitation, Back to the Moon reveals how prioritizing science, and in particular lunar astronomy, will enable us to address the deepest cosmic mysteries.

Given the near incomprehensible enormity of the universe, it appears almost inevitable that humankind will one day find a planet that appears to be much like the Earth. This discovery will no doubt reignite the lure of interplanetary travel. Will we be up to the task? And, given our limited resources, biological constraints, and the general hostility of space, what shape should we expect such expeditions to take?

In "Robots in Space, " Roger Launius and Howard McCurdy tackle these seemingly fanciful questions with rigorous scholarship and disciplined imagination, jumping comfortably among the worlds of rocketry, engineering, public policy, and science fantasy to expound upon the possibilities and improbabilities involved in trekking across the Milky Way and beyond. They survey the literature--fictional as well as academic studies; outline the progress of space programs in the United States and other nations; and assess the current state of affairs to offer a conclusion startling only to those who haven't spent time with Asimov, Heinlein, and Clarke: to traverse the cosmos, humans must embrace and entwine themselves with advanced robotic technologies.

Their discussion is as entertaining as it is edifying and their assertions are as sound as they are fantastical. Rather than asking us to suspend disbelief, "Robots in Space" demands that we accept facts as they evolve.

Radiophysical and Geomagnetic Effects of Rocket Burn and Launch in the Near-the-Earth Environment describes experimental and theoretical studies on the effects of rocket burns and launchings on the near-the-Earth environment and geomagnetic fields. It illuminates the main geophysical and radiophysical effects on the ionosphere and magnetosphere surrounding the Earth that accompany rocket or cosmic apparatus burns and launchings from 1,000 to 10,000 kilometers. The book analyzes the disturbances of plasma and the ambient magnetic and electric fields in the near-Earth environment from rocket burns and launchings from Russia, Kazakhstan, the United States, China, France, and other global space centers. Describing the radiophysical effects of rocket burn and launching in the middle and upper ionosphere, it focuses on the ecological consequences of space exploration-detailing methods for eliminating the harmful effects of space exploration. Measurements for the studies presented in the book were carried out using numerous radiophysical methods and techniques, including HF Doppler radar, incoherent and coherent scatter radar systems, microwave radar, magnetometer, and optical instrumentation and spectroscopy. The book analyzes the effects of rocket burns and launchings from 1975 to 2010 in worldwide launch campaigns. This book is an ideal reference for scientists in geophysics and radiophysics, specialists in rocket launching, and ecologists. It is also suitable as a fundamental handbook for graduate and postgraduate students taking physics and cosmic sciences courses at the university level.

A Brief History of Time for the 21st Century At the heart of our galaxy lies a monster so deadly, not even light can escape its grasp. Its secrets lie waiting to be discovered. It's time to explore our universe's most mysterious inhabitants Black Holes At the heart of the Milky Way lies a supermassive black hole 4 million times more massive than our Sun. A place where space and time are so warped that light is trapped if it ventures within 12 million km. According to Einstein, inside lies the end of time. According to 21st-century physics, the reality may be far more bizarre. Black holes lie where the most massive stars used to shine and at the edge of our current understanding. They are naturally occurring objects, the inevitable creations of gravity when too much matter collapses into not enough space. And yet, although the laws of nature predict them, they fail fully to describe them. Black holes are places in space and time where the laws of gravity, quantum physics and thermodynamics collide. Originally thought to be so intellectually troubling that they simply could not exist, it is only in the past few years that we have begun to glimpse a new synthesis; a deep connection between gravity and quantum information theory that describes a holographic universe in which space and time emerge from a network of quantum bits, and wormholes span the void. In this groundbreaking book, Professor Brian Cox and Professor Jeff Forshaw take you to the edge of our understanding of black holes; a scientific journey to the research frontier spanning a century of physics, from Einstein to Hawking and beyond, that ends with the startling conclusion that our world may operate like a giant quantum computer.

For the past sixty years, countries have conducted military and civilian activities in space, often for competitive purposes. But they have not yet fought in this environment. This book examines the international politics of the space age from 1957 to the present, the reasons why strategic restraint emerged among the major military powers, and how recent trends toward weaponization may challenge prior norms of conflict avoidance. James Clay Moltz analyzes the competing demands of national interests in space against the shared interests of all spacefarers in preserving the safe use of space in the face of emerging threats, such as man-made orbital debris. This new edition offers analysis of the 2011 to 2018 period, including the second term of President Obama and the beginning of the Trump administration. Focusing on great power competition and cooperation, as well as questions related to the sustainability of current and future national space policies, The Politics of Space Security is an authoritative history of the space age.

Historians have established a norm whereby President Eisenhower's actions in relation to the dawn of the space age are judged solely as a response to the Soviet launch of the Sputnik satellite, and are indicative of a passive, negative presidency. His low-key actions are seen merely as a prelude to the US triumph in space which is largely bookended first by President Kennedy's man-to-the-moon pledge in 1961, and finally by Neil Armstrong's moon landing eight years later. This book presents an alternative view of the development of space policy during Eisenhower's administration, assessing the hypothesis that his space policy was not a reaction to the heavily-propagandized Soviet satellite launches, or even the effect they caused in the US political and military elites, but the continuation of a strategic journey. This study engages with three distinct but converging strands of literature and proposes a revised interpretation of Eisenhower's actions in relation to rockets, missiles and satellites: namely that Eisenhower was operating on a parallel path to the established norm that started with the Bikini Atoll Castle H-bomb tests; developed through the CIA's reconnaissance efforts and was distilled in the Aeronautics and Space Act of 1958 which set a policy for US involvement in outer space that matched Eisenhower's desire for a balanced budget and fundamental belief in maintaining peace. President Eisenhower was not interested in joining a "space race": while national security underpinned his thinking, his space policy actions were strategic steps that actively sidestepped internecine armed forces rivalry, and provided a logical next step for both civilian and military space programs at the completion of the International Geophysical Year. In reassessing the United States' first space policy, the book adds to the revisionism under way in relation to the Eisenhower presidency, focusing on the "Helping Hands" that enabled him to wage peace.

Today, we are living in the New Space Age, where mass commercial space travel is almost within our grasp. This otherworldly possibility has opened up new cultural images of space, both real and fictional, and has caused fashion design and spacesuit engineering to intersect in new, exciting ways. Spacewear traverses this uncharted territory by exploring the changing imagination of space in fashion-and fashion in space-from the first Space Age to the 21st century. Exploring how space travel has stylistically and technologically framed fashion design on earth and how we need to revisit established design practices for the weightless environment, Spacewear connects the catwalk and the space station. This book draws together speculative fantasies in sci-fi films such as Star Trek and 2001: A Space Odyssey, with the engineered spacesuits Biosuit, and the NASA Z-2 and with catwalk interpretations by the likes of Alexander McQueen, Hussein Chalayan, Andre Courreges, and Iris van Herpen. While the development of commercial space agencies has led to new concerns for style in garments for outer space that re-think fundamental design principles such as drape, high fashion has experimented with new possibilities for weightlessness that extend far beyond the 1960s vision of Space Age metallic fabrics and helmet-style headwear. Brownie takes the reader on a fascinating journey from fantasy to function and to form, deepening our understanding of this new category of fashion that is prompting new approaches to garment design and construction both on earth and in outer space.

Afterword by Professor Stephen Hawking "Reads like a thriller - and reveals many secrets... one of the great entrepreneurial stories of our time" (Washington Post) From the age of eight, when he watched Apollo 11 land on the Moon, Peter Diamandis's singular goal was to get to space. When he realized NASA was winding down manned space flight, he set out on one of the great entrepreneurial adventure stories of our time. If the government wouldn't send him to space, he would create a private space flight industry himself. In the 1990s, this idea was the stuff of science fiction. Undaunted, Diamandis found inspiration in the golden age of aviation. He discovered that Charles Lindbergh made his transatlantic flight to win a $25,000 prize. The flight made Lindbergh the most famous man on earth and galvanized the airline industry. Why, Diamandis thought, couldn't the same be done for space flight? The story of the bullet-shaped SpaceShipOne, and the other teams in the hunt for a $10 million prize is an extraordinary tale of making the impossible possible. In the end, as Diamandis dreamed, the result wasn't just a victory for one team; it was the foundation for a new industry.

Space exploration has fascinated us since the launch of the first primitive rockets more than 3,000 years ago, and it continues to fascinate us today. The data gathered from such exploration has been hugely instrumental in furthering our understanding of our universe and our world. In Space Flight: History, Technology, and Operations, author Lance K. Erickson offers a comprehensive look at the history of space exploration, the technology that makes it possible, and the continued efforts that promise to carry us into the future. Space Flight goes through the history of space exploration, from the earliest sub-orbital and orbital missions to today's deep-space probes, to provide a close look at past and present projects, then turns its attention to programs being planned today and to the significance of future exploration. Focusing on research data gleaned from these exploration programs, the book's historical perspective highlights the progression of our scientific understanding of both the smallest and largest entities in our universe, from subatomic particles, to distant stars, planets, and galaxies. Both the novice and the advanced student of space exploration stand to profit from the author's engaging and insightful discussion.

In this fascinating foray into the millennia-long relationship between science and military power, "the world's best science communicator" (Times Literary Supplement), astrophysicist Neil deGrasse Tyson and writer Avis Lang examine how the methods and tools of astrophysics have been enlisted in the service of war. "The overlap is strong, and it's a two- way street", say the authors, because the astrophysicists and military planners care about many of the same things: multi- spectral detection, ranging, tracking, imaging, high ground, nuclear fusion and access to space. Tyson and Lang call it a "curiously complicit" alliance. Spanning early celestial navigation to satellite-enabled warfare, Accessory to War is a richly researched and provocative examination of the intersection of science, technology, industry and power that will introduce Tyson's millions of fans to yet another dimension of how the universe has shaped our lives and our world.

This peer-reviewed book presents a comprehensive overview of the role space is playing in enabling Latin America to fulfill its developmental aspirations. Following on from the highly acclaimed Part 1, it explains how space and its applications can be used to support the development of the full range and diversity of Latin America societies, while being driven by Latin American goals. The Latin American space sector is currently undergoing a phase of rapid and dynamic expansion, with new actors entering the field and with space applications increasingly being used to support the continent's social, economic, and political development. All across Latin America, attention is shifting to space as a fundamental part of the continental development agenda, and the creation of a Latin American space agency is evidence of this. Additionally, while in recent years, significant advances in economic and social development have lifted many of Latin America's people out of poverty, there is still much that needs to be done to fulfill the basic needs of the population and to afford them the dignity they deserve. To this end, space is already being employed in diverse fields of human endeavor to serve Latin America's goals for its future, but there is still a need for further incorporation of space systems and data. This book will appeal to researchers, professionals and students in fields such as space studies, international relations, governance, and social and rural development.

On July 20th, 1969, over half of the world's population tuned in to witness the first lunar landing, waiting with bated breath as Neil Armstrong ventured outside the cabin door of Apollo 11 and declared "that's one small step for [a] man, one giant leap for mankind." As the most expensive civilian scientific and technological program in American history, Project Apollo symbolised the unmatched prestige of American space exploration. Yet despite appearances, the project was never just about winning the Space Race, advancing scientific progress, or even conquering the final frontier. Instead, the ambitions of Project Apollo would ultimately reveal that the American government was more interested in establishing its superiority much closer to home. In Operation Moonglow, Smithsonian curator Teasel Muir-Harmony explores how and why the moon landing became one of the most decisive geopolitical events of the 20th century. In the wake of the Soviet Union's pioneering launch of Sputnik in 1957 and a humiliating defeat at the Bay of Pigs four years later, President John F. Kennedy approached a budget-wary Congress with Project Apollo, an unconventional proposal that had the potential to restore America's tarnished geopolitical standing. With Cold War tensions between the Soviet Union and the United States approaching an all-time high, Kennedy argued that ramping up the space program would inspire global confidence in American excellence -- and might even persuade people in developing countries to pick American "freedom" over Soviet "tyranny." Following the successful return of Apollo 11, its illustrious crew embarked on a diplomatic tour around the world, celebrating the mission as an accomplishment for all of humanity. Meanwhile, the accompanying American officials used the trip as an opportunity to conduct secret meetings with influential heads of state, leveraging the space program's global popularity to advance American values and interests. More than just a history of spaceships, astronauts, and moon rocks, Operation Moonglow is a history of geopolitical manoeuvring, of propaganda and public diplomacy, and -- above all -- of the intricate relationship between scientific innovation and national identity. Featuring first-hand accounts by Apollo astronauts, original interviews with USIA and NASA staff, and never-before-seen archival materials, Operation Moonglow is the definitive account of the Apollo mission -- and a fascinating look at how the Space Race shaped the contours of globalisation and global interdependence.

A fascinating look at extraterrestrial volcanoes in our Solar System. The volcano - among the most familiar and perhaps the most terrifying of all geological phenomena. However, Earth isn't the only planet to harbour volcanoes. In fact, the Solar System, and probably the entire Universe, is littered with them. Our own Moon, which is now a dormant piece of rock, had lava flowing across its surface billions of years ago, while Mars can be credited with the largest volcano in the Solar System, Olympus Mons, which stands 25km high. While Mars's volcanoes are long dead, volcanic activity continues in almost every other corner of the Solar System, in the most unexpected of locations. We tend to think of Earth volcanoes as erupting hot, molten lava and emitting huge, billowing clouds of incandescent ash. However, it isn't necessarily the same across the rest of the Solar System. For a start, some volcanoes aren't even particularly hot. Those on Pluto, for example, erupt an icy slush of substances such as water, methane, nitrogen or ammonia, that freeze to form ice mountains as hard as rock. While others, like the volcanoes on one of Jupiter's moons, Io, erupt the hottest lavas in the Solar System onto a surface covered in a frosty coating of sulphur. Whether they are formed of fire or ice, volcanoes are of huge importance for scientists trying to picture the inner workings of a planet or moon. Volcanoes dredge up materials from the otherwise inaccessible depths and helpfully deliver them to the surface. The way in which they erupt, and the products they generate, can even help scientists ponder bigger questions on the possibility of life elsewhere in the Solar System. Fire and Ice is an exploration of the Solar System's volcanoes, from the highest peaks of Mars to the intensely inhospitable surface of Venus and the red-hot summits of Io, to the coldest, seemingly dormant icy carapaces of Enceladus and Europa, an unusual look at how these cosmic features are made, and whether such active planetary systems might host life.

This book has been prepared under the auspice of the European Low Gravity Research Association (ELGRA). The main task of ELGRA is to foster the scientific community in Europe and beyond in conducting gravity and space-related research. This publication is dedicated to the science community, and especially to the next generation of scientists and engineers interested in space research and in the means to use Earth to reproduce the space environment. ELGRA provides a comprehensive description of space conditions and the means that have been developed on Earth to perform space environmental and (micro-) gravity related research. . The book covers ground-based research instruments and environments for both life and physical sciences research. It discusses the opportunities and limitations of protocols and instruments to compensate gravity or simulate microgravity, such as clinostats, random positioning machines, levitating magnets, electric fields, vibrations, tail suspension or head down tilt, as well as centrifuges for hyper-g studies. Other space environmental conditions are addressed too, like cosmic radiation or Mars atmospheric and soil properties to be replicated and simulated on Earth. Future long duration of manned missions, personal well-being and crew interaction are major issues dealt with.

The remarkable true story of America's first women astronauts 'Suspenseful, meticulously observed... encompasses the talent, ambition and perseverance of America's first female astronauts' Margot Lee Shetterly, bestselling author of Hidden Figures When NASA sent astronauts to the moon in the 1960s and 1970s the agency excluded women from the corps, arguing that only military test pilots - a group then made up exclusively of men - had the right stuff. It was an era in which women were steered away from jobs in science and deemed too fragile for space flight. Eventually, though, NASA relented and opened the application process to everyone, regardless of race or gender. From a 1977 candidate pool of 8,000 six elite women were selected - Sally Ride, Judy Resnik, Anna Fisher, Kathy Sullivan, Shannon Lucid, and Rhea Seddon. In The Six, acclaimed journalist Loren Grush shows these brilliant and courageous women enduring claustrophobic - and sometimes deeply sexist - media attention, undergoing rigorous survival training, and preparing for years to take multi-million-dollar payloads into orbit. Together, the Six helped build the tools that made the space program run. One of the group, Judy Resnik, sacrificed her life when the Space Shuttle Challenger exploded at 46,000 feet. Everyone knows of Sally Ride's history-making first space ride, but each of the Six would make their mark.

The search for life on Mars—and the moral issues confronting us as we prepare to send humans there Does life exist on Mars? The question has captivated humans for centuries, but today it has taken on new urgency. As space agencies gear up to send the first manned missions to the Red Planet, we have a responsibility to think deeply about what kinds of life may already dwell there—and whether we have the right to invite ourselves in. Telling the complete story of our ongoing quest to answer one of the most tantalizing questions in astronomy, David Weintraub grapples with the profound moral and ethical questions confronting us as we prepare to introduce an unpredictable new life form—ourselves—into the Martian biosphere. Now with an afterword that discusses the most recent discoveries, Life on Mars explains what we need to know before we go.