This discovery dramatically reshaped how humans understood their place in the cosmos, and once and for all laid to rest the idea that the Milky Way galaxy was alone in the universe. Six years later, continuing research by Hubble and others forced Albert Einstein to renounce his own cosmic model and finally accept the astonishing fact that the universe was not immobile but instead expanding. The fascinating story of these interwoven discoveries includes battles of will, clever insights, and wrong turns made by the early investigators in this great twentieth-century pursuit. It is a story of science in the making that shows how these discoveries were not the work of a lone genius but the combined efforts of many talented scientists and researchers toiling away behind the scenes. The intriguing characters include Henrietta Leavitt, who discovered the means to measure the vast dimensions of the cosmos . . . Vesto Slipher, the first and unheralded discoverer of the universe’s expansion . . . Georges Lemaître, the Jesuit priest who correctly interpreted Einstein’s theories in relation to the universe . . . Milton Humason, who, with only an eighth-grade education, became a world-renowned expert on galaxy motions . . . and Harlow Shapley, Hubble’s nemesis, whose flawed vision of the universe delayed the discovery of its true nature and startling size for more than a decade.Here is a watershed moment in the history of astronomy, brought about by the exceptional combination of human curiosity, intelligence, and enterprise, and vividly told by acclaimed science writer Marcia Bartusiak.

    Sixteen weeks later, Frank Borman, Jim Lovell, and Bill Anders were aboard the first manned spacecraft to depart Earth’s orbit, reach the moon, and return safely to Earth, delivering a tear-inducing Christmas Eve message along the way.

    Planetary science has mainly been a descriptive science, but it is becoming increasingly experimental. The space probes that went up between the 1960s and 1990s were primarily generalists-they collected massive amounts of information so that scientists could learn what questions to pursue. But recent missions have become more focused: Scientists know better what information they want and how to collect it. Even now probes are on their way to Mercury, Venus, Mars, and Pluto, with Europa-one of Jupiter's moons-on the agenda. In a sweeping look into the manifold objects inhabiting the depths of space, Lives of the Planets delves into the mythology and the knowledge humanity has built over the ages. Placing our current understanding in historical context, Richard Corfield explores the seismic shifts in planetary astronomy and probes why we must change our perspective of our place in the universe. In our era of extraordinary discovery, this is the first comprehensive survey of this new understanding and the history of how we got here.

    Nearly a half-century after Neil Armstrong walked on the moon, these Space Barons-most notably Elon Musk and Jeff Bezos, along with Richard Branson and Paul Allen-are using Silicon Valley-style innovation to dramatically lower the cost of space travel, and send humans even further than NASA has gone. These entrepreneurs have founded some of the biggest brands in the world-Amazon, Microsoft, Virgin, Tesla, PayPal-and upended industry after industry. Now they are pursuing the biggest disruption of all: space. Based on years of reporting and exclusive interviews with all four billionaires, this authoritative account is a dramatic tale of risk and high adventure, the birth of a new Space Age, fueled by some of the world's richest men as they struggle to end governments' monopoly on the cosmos. The Space Barons is also a story of rivalry-hard-charging startups warring with established contractors, and the personal clashes of the leaders of this new space movement, particularly Musk and Bezos, as they aim for the moon and Mars and beyond.

    Buzz Aldrin, one of the first moonwalkers, has no shortage of these ideas. And in Mission to Mars he treats us to how, when, and why we should travel there." -Neil deGrasse TysonLegendary "space statesman" Buzz Aldrin speaks out as a vital advocate for the continuing quest to push the boundaries of the universe as we know it. As a pioneering astronaut who first set foot on the moon during mankind's first landing of Apollo 11--and as an aerospace engineer who designed an orbital rendezvous technique critical to future planetary landings--Aldrin has a vision, and in this book he plots out the path he proposes, taking humans to Mars by 2035.Foreword by Andrew AldrinChapter 1: The View from Air Force OneChapter 2: Time for Decision-makingChapter 3: Your Space: Building the Business CaseChapter 4: Dreams of My MoonChapter 5: Voyage to ArmageddonChapter 6: The March to MarsChapter 7: Homesteading the Red PlanetChapter 8: The Clarion Call

    Thus began one of the boldest scientific projects in history, the Search for Extraterrestrial Intelligence (SETI). But after a half century of scanning the skies, astronomers have little to report but an eerie silence—eerie because many scientists are convinced that the universe is teeming with life. The problem, argues the leading physicist-astrobiologist Paul Davies, is that we’ve been looking in the wrong place, at the wrong time & in the wrong way. Davies should know. For more than three decades, he's been closely involved with SETI & now chairs its Post-Detection Taskgroup, charged with deciding what to do if we’re confronted with evidence of alien intelligence. In this extraordinary book, he shows how SETI has lost its edge & offers a new exciting road map for the future. Davies believes our search so far has been overly anthropocentric: we tend to assume an alien species will look, think & behave like us. He argues that we need to be far more expansive in our efforts, & in this book he completely redefines the search, challenging existing ideas of what form an alien intelligence might take, how it might try to communicate with us & how we should respond if it does. A provocative & mind-expanding journey, The Eerie Silence will thrill fans of science & science fiction alike.

    Armstrong become the first person to step on the surface of another heavenly body. Perhaps no words in human history became better known than those few he uttered at that historic moment. In a penetrating exploration of American hero worship, Hansen addresses the complex legacy of the First Man, as an astronaut and an individual.

    Beneath the frozen crusts of several of the small, ice-covered moons of Jupiter and Saturn lurk vast oceans that may have been in existence 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.

    . . . Roger Bilstein gracefully wends his way through a maze of technical documentation to reveal the important themes of this story. Rarely has such a nuts-and-bolts tale been so gracefully told."—Air University Review"Easily the best book of the NASA History Series. . . . Starting with the earliest rockets, Bilstein traces the development of the family of massive Saturn launch vehicles that carried the Apollo astronauts to the moon and boosted Skylab into orbit."—Technology and CultureA classic study of the development of the Saturn launch vehicle that took Americans to the moon in the 1960s and 1970s, Stages to Saturn is one of the finest official histories ever produced. The Saturn rocket was developed as a means of accomplishing President John F. Kennedy's goal for the United States to reach the moon before the end of the decade. Without the Saturn V rocket, with its capability of sending as payload the Apollo Command and Lunar Modules--along with support equipment and three astronauts--more than a quarter of a million miles from earth, Kennedy's goal would have been unrealizable. Stages to Saturn not only tells the important story of the research and development of the Saturn rockets and the people who designed them but also recounts the stirring exploits of their operations, from orbital missions around earth testing Apollo equipment to their journeys to the moon and back.  Essential reading for anyone seeking to understand the development of space flight in America and the course of modern technology, this reprint edition includes a new preface by the author providing a 21st-century perspective on the historic importance of the Saturn project.Roger E. Bilstein is professor emeritus of history at the University of Houston, Clear Lake. Regarded as one of the nation’s premier aerospace historians, he is the author of six books, including Flight in America: From the Wrights to the Astronauts and Testing Aircraft, Exploring Space: An Illustrated History of NACA and NASA.

    Perhaps the world's greatest technological achievement-and a triumph of American spirit and ingenuity-the Apollo 11 mission, and the entire Apollo program, was a mammoth undertaking involving more than 410,000 men and women dedicated to putting a man on the Moon and winning the Space Race against the Soviets.Seen through the eyes of the those who lived it, Shoot for the Moon reveals the dangers, the challenges, and the sheer determination that defined not only Apollo 11, but also the Mercury and Gemini missions that made it possible. Both sweeping and intimate, and based on exhaustive research and dozens of fresh interviews, bestselling author James Donovan's Shoot for the Moon is the definitive and thrilling account of one of humankind's most extraordinary feats of exploration.

    What will happen if humanity makes contact with another civilization on a different planet? In The Contact Paradox, space journalist Keith Cooper tackles some of the myths and assumptions that underlie SETI--the Search for Extraterrestrial Intelligence.In 1974 a message was beamed towards the stars by the giant Arecibo telescope in Puerto Rico, a brief blast of radio waves designed to alert extraterrestrial civilizations to our existence. Of course, we don't know if such civilizations really exist. But for the past six decades a small cadre of researchers have been on a quest to find out, as part of SETI, the search for extraterrestrial intelligence.The silence from the stars is prompting some researchers, inspired by the Arecibo transmission, to transmit more messages into space, in an effort to provoke a response from any civilizations out there that might otherwise be staying quiet. However, the act of transmitting raises troubling questions about the process of contact. We look for qualities such as altruism and intelligence in extraterrestrial life, but what do these mean to humankind? Can we learn something about our own history when we explore what happens when two civilizations come into contact? Finally, do the answers tell us that it is safe to transmit, even though we know nothing about extraterrestrial life, or as Stephen Hawking argued, are we placing humanity in jeopardy by doing so?In The Contact Paradox, author Keith Cooper looks at how far SETI has come since its modest beginnings, and where it is going, by speaking to the leading names in the field and beyond. SETI forces us to confront our nature in a way that we seldom have before--where did we come from, where are we going, and who are we in the cosmic context of things? This book considers the assumptions that we make in our search for extraterrestrial life, and explores how those assumptions can teach us about ourselves.

    So Tyson brings the universe down to Earth succinctly and clearly, with sparkling wit, in tasty chapters consumable anytime and anywhere in your busy day.

    Shepard and Slayton, part of the pioneering space program from the beginning, tell this fascinating inside story. 32 pages of photos.

    The first NASA flight director, Kraft emerged from boyhood in small-town America to become a visionary who played an integral role in what would become the National Aeronautics and Space Administration. It's all here, from the legendary Mercury missions that first sent Americans into space through the Gemini and Apollo missions that landed them on the moon. The great heroes of space are here, too-Alan Shepard, John Glenn, Neil Armstrong, Jim Lovell, and Buzz Aldrin-leading the space race that would change the course of U.S. history. From NASA's infancy to its greatest triumphs . . . from the calculated gambles to the near disasters to the pure luck that accompanied each mission, Flight relives the spellbinding events that captured the imagination of the world. It is a stirring tribute to the U.S. space program and to the men who risked their lives to take America on a flight into the unknown-from the man who was there for it all. "A highly readable memoir." (The New York Times Book Review) "A rewarding look at the brief, shining moment when space pathfinders held sway over space warriors." (The Washington Post)

     Astronomer Paul Murdin's inside guide will help you learn all about the solar system and its planets and satellites. It looks at the universe from a longer perspective and reveals how Saturn's moon, Titan, boasts lakes which contain liquid methane surrounded by soaring hills and valleys (exactly as the earth did before life evolved); Mercury is the shyest planet; and that the biggest volcano on Mars is 10 times the depth of the Grand Canyon.