The present century has been a disappointing one for comets, but past centuries often featured spectacular, unforgettable comet shows that dominated the night (and even daytime) sky for months: comets that outshone Venus or even the Moon, whose spectacular tails stretched more than halfway across the sky or were weirdly split, and whose apparition was held responsible for everything from wars to unusually good wine vintages. Published to coincide with the first naked-eye appearance of Comet Hale-Bopp, perhaps our own "comet of the century", this book is a guide to comet facts and lore throughout history.

On April 12, 1961, Yuri Gagarin became the first person in history to leave the Earth's atmosphere and venture into space. His flight aboard a Russian Vostok rocket lasted only 108 minutes, but at the end of it he had become the most famous man in the world. Back on the ground, his smiling face captured the hearts of millions around the globe. Film stars, politicians and pop stars from Europe to Japan, India to the United States vied with each other to shake his hand.
Despite this immense fame, almost nothing is known about Gagarin or the exceptional people behind his dramatic space flight. "Starman" tells for the first time Gagarin's personal odyssey from peasant to international icon, his subsequent decline as his personal life began to disintegrate under the pressures of fame, and his final disillusionment with the Russian state. President Kennedy's quest to put an American on the Moon was a direct reaction to Gagarin's achievement--yet before that successful moonshot occurred, Gagarin himself was dead, aged just thirty-four, killed in a mysterious air crash. Publicly the Soviet hierarchy mourned; privately their sighs of relief were almost audible, and the KGB report into his death remains secret.
Entwined with Gagarin's history is that of the breathtaking and highly secretive Russian space program - its technological daring, its triumphs and disasters. In a gripping account, Jamie Doran and Piers Bizony reveal the astonishing world behind the scenes of the first great space spectacular, and how Gagarin's flight came frighteningly close to destruction.

How old is Earth? How old are the planets, the Moon, meteorites, stars, and the Universe itself? How do scientists know these things? If you've ever asked yourself some or all of these questions, then this book is for you. Planet Earth and the other bodies of the Solar System are 4.5 billion years old. They reside in a galaxy (the Milky Way Galary) that is 12-14 billion years old, and are part of a universe that is 13-15 billion years old. G. Brent Dalrymple, a geologist and widely recognized expert on the age of Earth, reviews the evidence that has led scientists to these conclusions and describes the methods by which this evidence has been gathered. The book is written in a highly accessible style, free of mathematics and complex graphs, and is intended for non-scientists who have an interest in the subject. People with scientific backgrounds who wish to have a thorough summary of the subject will also find the book useful.

The mystery of gravity has captivated us for centuries. But what is gravity and how does it work? This engaging book delves into the bizarre and often counter-intuitive world of gravitational physics. Join distinguished astrophysicist Professor Luciano Rezzolla on this virtual journey into Einstein's world of gravity, with each milestone presenting ever more fascinating aspects of gravitation. Through gentle exposure to concepts such as spacetime curvature and general relativity, you will discover some of the most curious consequences of gravitational physics, such as black holes, neutron stars and gravitational waves. The author presents and explains one of the most impressive scientific achievements of recent times: the first image of a supermassive black hole. Written by one of the key scientists involved in producing these results, you'll get a behind-the-scenes view of how the image was captured and discover what happens to matter and light near a black hole.

From our own solar system to the edges of the universe, 50 Astronomy Ideas You Really Need to Know is your introduction to the most important concepts, discoveries and mysteries in astronomy. How did the universe begin? Where did the Moon come from? What happens in the heart of a black hole? Why are gravitational waves so significant? And is there life elsewhere in the cosmos? In fifty fascinating essays covering the central ideas of astronomy and cosmology, accompanied by diagrams, definitions of essential terms and timelines of key discoveries, this book examines the nature and variety of our universe - the life cycle of stars, the formation of planets, the structure of galaxies and the puzzles of dark matter and the multiverse. Expansive and illuminating, 50 Astronomy Ideas You Really Need to Know is the complete guide to the birth, life and possible death of the cosmos.

Now a major film starring Ryan Gosling, Claire Foy and Kyle Chandler, directed by Oscar-winner Damien Chazelle, First Man by James Hansen offers the only authorized glimpse into the life of America's most famous astronaut, Neil Armstrong - the man whose "one small step" changed history. In First Man, Hansen explores the life of Neil Armstrong. Based on over 50 hours of interviews with the intensely private Armstrong, who also gave Hansen exclusive access to private documents and family sources, this "magnificent panorama of the second half of the American twentieth century" (Publishers Weekly, Starred Review) is an unparalleled biography of an American icon. When Apollo 11 touched down on the moon's surface in 1969, the first man on the moon became a legend. Hansen vividly recreates Armstrong's career in flying, from his seventy-eight combat missions as a naval aviator flying over North Korea to his formative transatmospheric flights in the rocket-powered X-15 to his piloting Gemini VIII to the first-ever docking in space. For a pilot who cared more about flying to the Moon than he did about walking on it, Hansen asserts, Armstrong's storied vocation exacted a dear personal toll, paid in kind by his wife and children. In the years since the Moon landing, rumors swirled around Armstrong concerning his dreams of space travel, his religious beliefs, and his private life. This book reveals the man behind the myth. In a penetrating exploration of American hero worship, Hansen addresses the complex legacy of the First Man, as an astronaut and as an individual. In First Man, the personal, technological, epic, and iconic blend to form the portrait of a great but reluctant hero who will forever be known as history's most famous space traveler.

For over a quarter of a century, gamma-ray bursts were the outstanding mystery in astronomy. No one knew where they were or how they worked. The Biggest Bangs tells how the mystery was unraveled, from the discovery of gamma-ray bursts by a Cold War satellite system monitoring the Nuclear Test Ban Treaty to the localization of bursts in distant galaxies and the observation of surprisingly bright flashes of light from the bursts themselves. The Biggest Bangs is for laymen with an interest in science, physicists and astronomers interested in subjects in those fields not their specialty, students in non-technical astonomy courses, and as supplemental reading for courses in the history of science.

Astrophysics is often -with some justification - regarded as incomprehensible without the use of higher mathematics. Consequently, many amateur astronomers miss out on some of the most fascinating aspects of the subject. Astrophysics Is Easy! cuts through the difficult mathematics and explains the basics of astrophysics in accessible terms. Using nothing more than plain arithmetic and simple examples, the workings of the universe are outlined in a straightforward yet detailed and easy-to-grasp manner. Following on the success of the first and second editions, this fully updated third edition covers the significant changes in astrophysics theories and research that have occurred in the last five years, including new material on: exomoons, exocomets and exoasteroids; Special and General Relativity; gravitational waves, their origins and detection; telescope optics; black hole astrophysics; and more. For each topic under discussion, an observing list is included so that observers can actually see for themselves the concepts presented - stars of the spectral sequence, nebulae, galaxies, even black holes. The book also features in-text, nonmathematical questions and end-of-chapter problems - all with their accompanying solutions - to help readers discuss and digest the material.

Selected as a Mission Specialist in 1978 in the first group of shuttle astronauts, Mike Mullane completed three missions and logged 356 hours aboard the Discovery and Atlantis shuttles. It was a dream come true. As a boy, Mullane could only read about space travel in science fiction, but the launch of Sputnik changed all that. Space flight became a possible dream and Mike Mullane set out to make it come true. In this absorbing memoir, Mullane gives the first-ever look into the often hilarious, sometime volatile dynamics of space shuttle astronauts - a class that included Vietnam War veterans, feminists, and propeller-headed scientists. With unprecedented candour, Mullane describes the chilling fear and unparalleled joy of space flight. As his career centred around the Challenger disaster, Mullane also recounts the heartache of burying his friends and colleagues. And he pulls no punches as he reveals the ins and outs of NASA, frank in his criticisms of the agency. A blast from start to finish, Riding Rockets is a straight-from-the-gut account of what it means to be an astronaut, just in time for this latest generation of stargazers.

"First Magnitude" is an entry-level book for readers with brightly lit skies. Its purpose is to show them that all is not lost, that they can still enjoy personal astronomy and have an appreciation of the heavens no matter where they live. It concentrates on the Sun, Moon, the five bright planets, and on the 23 brightest stars, which are visible from just about anywhere. The book concludes with bright ephemeral phenomena: meteors, comets, and exploding stars. The concept is a platform for introducing the reader to the wonders of the nighttime and daytime skies and serves as an introduction to general astronomy.James Kaler takes delight in sharing with us his extensive knowledge and infectious enthusiasm for the study of the skies. He further discusses his thoughts on the evolving field of astronomy and expresses his surprise at having an asteroid named after him in honor of his outreach activities.

The three greatest scientific mysteries, which remain poorly understood, are the origin of the universe, the origin of life and the development of consciousness. This book describes the processes preceding the Big Bang, the creation of matter, the concentration of that matter into stars and planets, the development of simple life forms and the theory of evolution that has given higher life forms, including mankind.There are many popular and excellent science books that present various aspects of science. However, this book follows a narrow scientific pathway from the Big Bang to mankind, and depicts the causal relationship between each step and the next. The science covered will be enough to satisfy most readers. Many important areas of science are dealt with, and these include cosmology, particle physics, atomic physics, galaxy and star formation, planet formation and aspects of evolution. The necessary science is described in a narrative form that general-interest readers should understand, without the use of equations or formulae.This 2nd edition includes several updates on the subjects that form the pillars of this book. They are: cosmology and astronomy, the features and formation of the solar system, the origin of life, and genetics and evolution. This book will appeal to readers with an interest in biology and those curious about the origins of the universe.

The three greatest scientific mysteries, which remain poorly understood, are the origin of the universe, the origin of life and the development of consciousness. This book describes the processes preceding the Big Bang, the creation of matter, the concentration of that matter into stars and planets, the development of simple life forms and the theory of evolution that has given higher life forms, including mankind.There are many popular and excellent science books that present various aspects of science. However, this book follows a narrow scientific pathway from the Big Bang to mankind, and depicts the causal relationship between each step and the next. The science covered will be enough to satisfy most readers. Many important areas of science are dealt with, and these include cosmology, particle physics, atomic physics, galaxy and star formation, planet formation and aspects of evolution. The necessary science is described in a narrative form that general-interest readers should understand, without the use of equations or formulae.This 2nd edition includes several updates on the subjects that form the pillars of this book. They are: cosmology and astronomy, the features and formation of the solar system, the origin of life, and genetics and evolution. This book will appeal to readers with an interest in biology and those curious about the origins of the universe.

What is the origin of the universe? Are we alone in the Universe? Using clear and plain language, the author explores these two interesting scientific-philosophical themes with a broad range of studies, including astronomy, cosmology, chemistry, biology, geology and planet science.The first part discusses the origins of everything, from the Big Bang to humankind. It follows the long course of evolution - from original matter to the formation of more complex structures, from the furthest galaxies to the nearest stars, from planets to organic molecules, from the first and most elementary forms of life through to the reptiles, the dinosaurs and the advent of man.The second part traces the history of the Earth and evaluates the risks of extinction in the future as predicted by scientists. Is the Earth the only habitable planet in the Universe? This question initiates the discussion on the importance of the Earth's position in the solar system and the significance of our geologically alive planet.The final part is dedicated to the search for extraterrestrial beings with identifiable life forms. It also describes attempts for searching, from the past to the near future.This remarkable book provides the best answers we have to the epic questions about us and our place in the universe.

What is the origin of the universe? Are we alone in the Universe? Using clear and plain language, the author explores these two interesting scientific-philosophical themes with a broad range of studies, including astronomy, cosmology, chemistry, biology, geology and planet science.The first part discusses the origins of everything, from the Big Bang to humankind. It follows the long course of evolution - from original matter to the formation of more complex structures, from the furthest galaxies to the nearest stars, from planets to organic molecules, from the first and most elementary forms of life through to the reptiles, the dinosaurs and the advent of man.The second part traces the history of the Earth and evaluates the risks of extinction in the future as predicted by scientists. Is the Earth the only habitable planet in the Universe? This question initiates the discussion on the importance of the Earth's position in the solar system and the significance of our geologically alive planet.The final part is dedicated to the search for extraterrestrial beings with identifiable life forms. It also describes attempts for searching, from the past to the near future.This remarkable book provides the best answers we have to the epic questions about us and our place in the universe.

This book presents in a simple style the success story of modern astrophysics - how the application of known physics to models of stars can, together with the observational data, help us understand what stars are made of, how they live and how they die. The account is non-technical but scientifically accurate. It is interspersed with anecdotes and analogies to make the subject matter readable and understandable even to a lay reader with some basic scientific background.

Why, today, would anyone undertake a plan to launch a spacecraft some 30 years in the future, and on a journey that would take some 40 years to complete? Paul Gilster investigates the science, and the spirit, of the NASA and JPL researchers who are actually at work on just such a project.

From the reviews:

"Gilster introduces the challenges of imagining and planning interstellar exploration by leading readers through the difficulties of reaching and exploring the nearest bright star, Alpha Centauri. Seeded by ideas and concepts of the late Robert Forward, the narrative is framed as a learning process undertaken simultaneously by writer and reader. Although Alpha Centauri is astronomically nearby, a postulated trip by robot spacecraft, followed by manned exploration, would take 50 to 1,000 years, depending on the type of spacecraft propulsion used. Various methods for interstellar travel are introduced and discussed, including solar sails that use the power of starlight, nuclear fusion, antimatter hybrid systems, and beamed laser propulsion. One challenge is to get there in a reasonable time so that funding support, public interest, and events on Earth will not divert attention from the mission. Another challenge is timing the mission relative to available technology, because with better technology it might be possible to send a later robot on the same mission in less time. The book has no figures, tables, or illustrations but does include 30 pages of notes and an adequate 14-page index. Though the concepts presented are often fanciful, this book will appeal to readers who wonder about the future of exploration beyond the solar system. Summing Up: Highly recommended. Generalreaders; professionals." (W. E. Howard III, CHOICE, March 2005)

Witnessing a total solar eclipse is a wondrous and unforgettable event! Eclipse Chasers is a guide to past and future Australian total solar eclipses, exploring historical and cultural knowledge, as well as featuring five upcoming eclipses that will be visible in Australia. The science of eclipses is explained, as well as how to prepare for an eclipse and view it safely. For upcoming eclipses the best locations to view each one are revealed, alongside tips for taking photographs. The book also reveals untold stories of how past Australian astronomers observed the total eclipses that have occurred since European settlement, and how these eclipses were celebrated in popular culture, poetry and art. It explores the great significance of solar eclipses for First Nations peoples, and their observations and cultural meanings. Eclipse Chasers showcases the drama and beauty of total solar eclipses and is essential for anyone fascinated by these amazing events. IMPORTANT NEWS: The next total solar eclipse in Australia is set to occur April 20, 2023. The Ningaloo Eclipse will entice people from all over the world to travel to Exmouth in Western Australia to have front row seats. KEY INFO: Includes locations and times to safely view a series of total solar eclipses coming up over the next two decades in Australia: April 2023; July 2028, Nov 2030, July 2037 and December 2038. Interest in eclipses is set to surge in Australia as we will have the opportunity to view five over the next two decades. Worldwide there are usually just one or two total solar eclipses each year, so it is remarkable that so many can be seen in one location so close together. A media campaign will support the release of Eclipse Chasers with expected coverage in major newspapers and national radio. The book includes information for teachers, and teacher notes will be available from the CSIRO Publishing website.

Space was at the center of America's imagination in the 1960s. President John F. Kennedy's visionary statement captured the mood of the day: "We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard." The Apollo mission's success in July 1969 made almost anything seem possible, but the Cold War made space flight the province of governmental agencies in the United States. When the Apollo program ended in 1972, space lost its hold on the public interest, as the great achievements wound down. Entrepreneurs are beginning to pick up the slack--looking for safer, more reliable, and more cost effective ways of exploring space. Entrepreneurial activity may make create a renaissance in human spaceflight. The private sector can energize the quest for space exploration and shape the race for the final frontier. Space entrepreneurs and private sector firms are making significant innovations in space travel. They have plans for future tourism in space and safer shuttles. Solomon details current US and international laws dealing with space use, settlement, and exploration, and offers policy recommendations to facilitate privatization. As private enterprise takes hold, it threatens to change the space landscape forever. Individuals are designing spacecraft, start-up companies are testing prototypes, and reservations are being taken for suborbital space flights. With for-profit enterprises carving out a new realm, it is entirely possible that space will one day be a sea of hotels and/or a repository of resources for big business. It is important that regulations are in place for this eventuality. These new developments have great importance, huge implications, and urgency for everyone.

Named a Top Ten Book of 2011 by Physics World, UK.There are many books that endeavor to bridge the gap between scientists and laymen, yet too many overemphasize the presentation of scientific findings as hard facts and end up alienating readers from the critical thinking processes involved in science.Whiting attempts to break away from the norm in this revolutionary review of popular astronomy books written from 1833 to 1944. He examines these important works by acknowledged authorities in the field to see how they have stood the test of time. Where the luminaries have failed, he looks for clues that the layman reader could have used to raise doubts about what was being said. The aim of this highly accessible book is to develop tools for the non-scientist to evaluate the strange and marvelous results that astronomers report, in place of the highly-developed scientific and mathematical techniques available to the scientists themselves. A must-read for all science and astronomy enthusiasts.

Ever since its infancy, humankind has been seeking answers to some very basic and profound questions. Did the Universe begin? If it did, how old is it, and where did it come from? What is its shape? What is it made of? Fascinating myths and brilliant in- itions attempting to solve such enigmas can be found all through the history of human thought. Every culture has its own legends, itsownworldcreationtales, itsphilosophicalspeculations, itsre- gious beliefs. Modern science, however, cannot content itself with fanciful explanations, no matter how suggestive they are. No- days, our theories about the Universe, built upon rational ded- tion, have to survive the hard test of experiment and observation. Cosmology, the science which studies the origin and evo- tion of the Universe, had to overcome enormous dif?culties before it could achieve the same level of dignity as other physical dis- plines. At ?rst, it had no serious physical model and mathematical tools that could be used to address the complexity of the problems it had to face. Then, it suffered from a chronic lack of experim- tal data, which made it almost impossible to test the theoretical speculations. Given this situation, answering rigorously the many questions on the nature of the Universe seemed nothing more than a delusion. Today, however, things have changed. We live in the golden age of cosmology: an exciting moment, when, for the ?rst time, we are able to scienti?cally understand our Univers

A sweeping account of the century of experimentation that confirmed Einstein's general theory of relativity, bringing to life the science and scientists at the origins of relativity, the development of radio telescopes, the discovery of black holes and quasars, and the still unresolved place of gravity in quantum theory. Albert Einstein did nothing of note on May 29, 1919, yet that is when he became immortal. On that day, astronomer Arthur Eddington and his team observed a solar eclipse and found something extraordinary: gravity bends light, just as Einstein predicted. The finding confirmed the theory of general relativity, fundamentally changing our understanding of space and time. A century later, another group of astronomers is performing a similar experiment on a much larger scale. The Event Horizon Telescope, a globe-spanning array of radio dishes, is examining space surrounding Sagittarius A*, the supermassive black hole at the center of the Milky Way. As Ron Cowen recounts, the foremost goal of the experiment is to determine whether Einstein was right on the details. Gravity lies at the heart of what we don't know about quantum mechanics, but tantalizing possibilities for deeper insight are offered by black holes. By observing starlight wrapping around Sagittarius A*, the telescope will not only provide the first direct view of an event horizon-a black hole's point of no return-but will also enable scientists to test Einstein's theory under the most extreme conditions. Gravity's Century shows how we got from the pivotal observations of the 1919 eclipse to the Event Horizon Telescope, and what is at stake today. Breaking down the physics in clear and approachable language, Cowen makes vivid how the quest to understand gravity is really the quest to comprehend the universe.

ESCAPE FROM EARTH is the untold story of the engineers, dreamers and rebels who started the American space programme. In particular, it is the story of Frank Malina, founder of what became Nasa's Jet Propulsion Laboratory and the scientist who cracked the, as he called it, problem of escape from the Earth by rocket.

It's a wild ride. Jack Parsons, Malina's chemistry-expert research partner, was a bed-hopping occultist with delusions of grandeur. We get all the horrible details: drug parties and sex magic, cameos by Aleister Crowley and L Ron Hubbard, and an ill-fated attempt to start a mail-order religion.

Armed with hitherto unpublished letters, journals, and documents from the Malina family archives, Fraser MacDonald reveals what we didn't know. Jack Parsons betrayed Frank Malina to the FBI, cooperating fully in their investigation of Malina for un-American activities. The Jet Propulsion Lab's second director secretly denounced Frank as a Communist. Frank's research group had close ties to the spy network of the infamous Rosenbergs - the only Americans executed during the Red Scare. This is a story of soaring ideals entangled in the most human of complications: infidelity and divorce, betrayal and treason.