In 2005, Palla & Baraffe proposed that brown dwarfs and very low mass stars (

Space and Space Travel is a comprehensive introductory overview of subject matter related to exploration of the solar system. After an initial discussion of energy, power, and the atom, the book explores the Sun and its impact on planets and the space environment, the conditions in space, the fundamentals of space travel, and planetary destinations. Specific topics include the solar interior and atmosphere, space plasma environments and weather, advanced propulsion, the inner solar system, and asteroids and beyond. Photographs, charts, and graphs support the text and enhance learning. Space and Space Travel is broadly based, and can be used in classes that discuss planetary science, space science, space technology, and human space flight. It is suitable for junior and senior level high school courses, as well as survey courses at the university level. The book is also an excellent jumping off point for technical classes that explore a specific topic in detail, but require general background knowledge.

What's in the dark? Countless generations have gazed up at the night sky and asked this question--the same question that cosmologists ask themselves as they study the universe.
The answer turns out to be surprising and rich. The space between stars is filled with an exotic substance called "dark matter" that exerts gravity but does not emit, absorb, or reflect light. The space between galaxies is rife with "dark energy" that creates a sort of cosmic antigravity causing the expansion of the universe to accelerate. Together, dark matter and dark energy account for 95 percent of the content of the universe. News reporters and science journalists routinely talk about these findings using terms that they assume we have a working knowledge of, but do you really understand how astronomers arrive at their findings or what it all means?
Cosmologists face a conundrum: how can we study substances we cannot see, let alone manipulate? A powerful approach is to observe objects whose motion is influenced by gravity. Einstein predicted that gravity can act like a lens to bend light. Today we see hundreds of cases of this--instances where the gravity of a distant galaxy distorts our view of a more distant object, creating multiple images or spectacular arcs on the sky. Gravitational lensing is now a key part of the international quest to understand the invisible substance that surrounds us, penetrates us, and binds the universe together.
"A Ray of Light in a Sea of Dark Matter" offers readers a concise, accessible explanation of how astronomers probe dark matter. Readers quickly gain an understanding of what might be out there, how scientists arrive at their findings, and why this research is important to us. Engaging and insightful, Charles Keeton gives everyone an opportunity to be an active learner and listener in our ever-expanding universe.

This book is about the history and future of life and the universe, written at a level that any educated lay-person can understand and enjoy. It describes our place in time and space, how we got here and where we are going. It will take you on a journey from the beginning of time to the end of the universe to uncover our origins and reveal our destiny. It will explain how mankind acquired this knowledge starting from the beginning of civilization when the ancient Greeks first began to ask questions about the nature of the world around them.

Ben Moore takes us on a path of discovery that connects astrophysics with subjects as varied as biology, neuroscience and evolution; from the origin of atoms to how stars shine and die, from ants and elephants to space travel and extra-terrestrial life. But as our universe grows older and its stars fade away and stop shining, can life continue for eternity or is all life destined for complete extinction? And what is the purpose of all of this anyway?

On the German edition:
"With his public talks and his new book "Elefanten im All" the Brit is on his way of becoming a popstar of science. Moore has a story to tell. The story of everything. From the beginning to the end of our existence. And he does so with esprit and catching passion." Rico Bandle, Weltwoche, 1. November 2012

"The kind of book you come across only every few years." Artur K. Vogel, Der Bund, September 2012"

"The Universal Force" conveys the excitement of science and nature's mysteries. It describes gravitation as seen by examining the achievements of those great scientists who have struggled with the seemingly simple facts and managed to extract some truth about the nature of gravity, its origins, and its effects. Gravity is intimately tied up with motion, and therefore with time and space, and is responsible for planetary systems, the evolution of stars and the existence of black holes and the very beginning of the Universe. It is the universal force, and to look at gravity is to look at the deepest aspects of nature. The historical context from Aristotle's teleology through Galileo's conflict with the Church, to Newton's law, and Einstein's curved space time, displays the evolution of the science of gravity as one of the greatest and most fascinating human achievements. Contrary to popular opinion, all important science can be understood by anyone, with or without a scientific background. This book shows that the beauty and mysteries of science can be shared with everyone.

Albert Einstein's General Theory of Relativity is possibly the most perfect intellectual achievement in modern physics. Anything that involves gravity, the force that powers everything on the largest, hottest or densest of scales, can be explained by it. From the moment Einstein first proposed the theory in 1915, it was received with enthusiasm yet also with tremendous resistance, and for the following ninety years was the source of a series of feuds, vendettas, ideological battles and international collaborations featuring a colourful cast of characters. A gripping, colourfully told story, A Perfect Theory entangles itself with the flashpoints of modern history. In this first complete popular history of the theory, Pedro G. Ferreira shows how the theory has informed our understanding of exactly what the universe is made of and how much is still undiscovered: from the work of the giant telescopes in the deserts of Chile to the way in which the latest work on black holes is providing a fresh, new perspective on what space and time are truly made of. As we near the first centenary of Einstein's iconic theory, scientists the world over are wondering once again if we have reached the limits of the theory and just how much of the universe's future it can explain.

Step outside on a clear night, and the number of stars in the night sky can be overwhelming. Take a pair of binoculars or a small telescope with you, and a celestial vista of star clusters and clouds, knots of gas and dust, nearby planets and distant galaxies is revealed. Since ancient times, stargazers have made sense of the night sky by grouping its stars into constellations - star patterns that often have symbolic or mythological meanings. Constellations is a guide to the night sky that focuses on these 88 distinctive patterns, revealing their often intriguing stories - their origins, mythology, present-day significance - and the multitude of wondrous objects they contain. Complete with many of the best astronomical images ever captured, a comprehensive introduction to the stars and other celestial phenomena, and a series of newly commissioned, state-of-the-art maps showing the stars that are visible from populated latitudes in both hemispheres throughout the year, this magnificent guide has all you need to know to become an expert stargazer.

50 Things to See with a Small Telescope is composed of the go-to objects observed at public stargazing events all over the Northern Hemisphere. People of all ages frequently ask, "How did you find that so quickly?" Well, this book will explain just that The planets in our solar system, the International Space Station, sunspots, birds, nebula, airplanes, and comets are just some of the items that his book will help you find If you have been having difficulties enjoying your small telescope, this book is for you. There is something interesting about pretty much everything in outer space and it is exciting how many pop-culture references are derived from things in the night sky Viewing the stars referenced in Star Trek, or talking about a character in Harry Potter named after a constellation, is just another way to make stargazing that much more fun I am very excited to share my knowledge of astronomy and I am sure you will enjoy this book for years to come. By working through the 50 items in this book you will achieve a well-rounded understanding of amateur astronomy.

What is time? The 5th-century philosopher St Augustine famously said that he knew what time was, so long as no one asked him. Is time a fourth dimension similar to space or does it flow in some sense? And if it flows, does it make sense to say how fast? Does the future exist? Is time travel possible? Why does time seem to pass in only one direction? These questions and others are among the deepest and most subtle that one can ask, but Introducing Time presents them - many for the first time - in an easily accessible, lucid and engaging manner, wittily illustrated by Ralph Edney.

These natural history guides have been developed in the hope that young people and anyone with a budding interest in natural history will take up the challenge to learn the secrets of southern Africa's fascinating fauna and flora. These little guides are an invaluable resource for the beginner, providing information at a glance through superb photographs, maps and easy-to-read text. Ook in Afrikaans beskikbaar as Nagtehemel van suider-Afrika

In 140 pages, two masterly popularisers present 140 explanations of the biggest questions in physics - in the form of 10 or so tweets per page. They set themselves the challenge of boiling down what is essential on each subject into sentences of 140 characters, and the results are both entertaining and brilliantly informative. Not a word is wasted. The reader is not patronized and learns something on every page. If only all science writing could be so precise and so economical. Only science writers of a very high calibre could achieve such compression. Marcus Chown - 'the finest cosmology writer of our day' (Matt Ridley) - has known the Dutch writer Govert Schilling for twenty years. Schilling pioneered this very swift form of explanation in a Dutch newspaper, and suggested to Chown that they collaborate on bringing it to a wider audience. Tweeting the Universe is unlike any other science book.

This book describes more than 300 of the finest celestial wonders that can be viewed with common "backyard" telescopes. The author uses an abbreviated descriptive form to accommodate as much information on observation as possible for both field and armchair use. In addition to the many showpieces themselves, nearly 24 other special objects are listed. The author also points out that many of these deep-sky objects are visible to the unaided eye on a dark, clear night and prove wonderful sights in binoculars and low-power telescopes. The sun, moon, and planets in the Earth's solar system, as well as such brighter asteroids as Ceres, Juno, and Vesta, are described and their positions given, as are open star clusters, diffuse nebulas, supernova remnants, spiral galaxies, elliptical galaxies, the milky way, and a host of other astronomical phenomena. Unabridged republication of a book first published by the author in 1998.

Celestial Delights is essentially a 'TV Guide' for teh sky. This will be its third edition. This title, which has aggregated sales of about 20,000 copies to date in its two previous editions and has found a niche with skygazers, is much awaited. Through extensive graphics integrated with an eight-year-long calendar of sky events, it provides a look at "don't miss" sky events, mostly for naked-eye and binocular observing. The book is organized by ease of observation - lunar phases and the brighter planets come first, while solar eclipses, the aurora, and comets come later. Celestial Delights also includes a hefty dose of sky lore, astronomical history, and clear overviews of current science. It provides a handy reference to upcoming naked-eye events, with information broken out in clear and simple diagrams and tables that are cross-referenced against a detailed almanac for each year covered. Most broad-ranging astronomy field guides focus on stars, constellations, and the deep sky, but tend to ignore planetary events, which are in by far the most widely observable aspects of the changing night sky. Celestial Delights puts a variety of information all in one place, presents it in a friendly way that does not require prior in-depth astronomical knowledge, but provides the context and historical background for understanding events that astronomical computer programs or web sites lack.

What if Earth had several moons or massive rings like Saturn? What if the Sun were but one star in a double-star or triple-star system? What if Earth were the only planet circling the Sun? These and other imaginative scenarios are the subject of Arthur Upgren's inventive book Many Skies: Alternative Histories of the Sun, Moon, Planets, and Stars. Although the night sky as we know it seems eternal and inevitable, Upgren reminds us that, just as easily, it could have been very different. Had the solar system happened to be in the midst of a star cluster, we might have many more bright stars in the sky. Yet had it been located beyond the edge of the Milky Way galaxy, we might have no stars at all. If Venus or Mars had a moon as large as ours, we would be able to view it easily with the unaided eye. Given these or other alternative skies, what might Ptolemy or Copernicus have concluded about the center of the solar system and the Sun? This book not only examines the changes in science that these alternative solar, stellar, and galactic arrangements would have brought, it also explores the different theologies, astrologies, and methods of tracking time that would have developed to reflect them. Our perception of our surroundings, the number of gods we worship, the symbols we use in art and literature, even the way we form nations and empires are all closely tied to our particular (and accidental) placement in the universe. Many Skies, however, is not merely a fanciful play on what might have been. Upgren also explores the actual ways that human interference's such as light pollution are changing the night sky. Our atmosphere, he warns, will appear very different if we have a belt of debris circling the globe and blotting out the stars, as will happen if advertisers one day pollute space with brilliant satellites displaying their products. From fanciful to foreboding, the scenarios in Many Skies will both delight and inspire reflection, reminding us that ours is but one of many world views based on our experience of a universe that is as much a product of accident as it is of intention.

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.

A passion for star-gazing often starts in a modest way, with a small telescope. For some, that modest beginning becomes a theme that resonates through a lifetime. Mr. Olcott's Skies is the story of one such beginning, and of how a small telescope and an old book set the author on a long and often indirect road to the stars. It's the tale of a journey that has only just begun, and of the discovery that you really do need to look back the way you've come, to understand where you are.

Kessinger Publishing is the place to find hundreds of thousands of rare and hard-to-find books with something of interest for everyone!

Our nearest celestial neighbour, the Moon, has always been the most conspicuous feature in our night sky. It has compelled observers since the dawn of humankind, and all have tried to make sense in their own ways of the puzzles it poses and the questions it raises. It provided our ancient ancestors with one of the earliest means of keeping and measuring time, and many early religions had cults that worshipped the Moon. It regulates the tides and has been held accountable for numerous human conditions, most notably madness and psychological disorders. Drawing on many years of practical observation, Bill Leatherbarrow provides an illuminating insight into the history and evolution of this enthralling astronomical body. He describes how and why the study of the Moon has evolved, particularly in the age of the telescope, and offers an overview of developments in lunar science since the advent of the space age. Leatherbarrow also provides practical advice on how to make your own observations of the Moon. Extensively illustrated with images of the lunar surface, The Moon is an accessible introduction that will appeal to both amateur and professional astronomers and all those fascinated by Earth's natural satellite.

First Snow White encounters one of the Little People, then one of the Even Smaller People, and finally one of the Truly Infinitesimal People. And no matter how diligently she searches, the only dwarves she can find are collapsed stars! Clearly, she's not at home in her well-known Brothers Grimm fairy tale, but instead in a strange new landscape that features quantum behavior, the wavelike properties of particles, and the Uncertainty Principle. She (and we) must have entered, in short, one of the worlds created by Robert Gilmore, physicist and fabulist.

When I became the producer of the Sky at Night in 2002, I was given some friendly advice: "It's a quiet little programme, not much happens in astronomy." How wrong they were! It's been a hectic and enthralling time ever since:, with missions arriving at distant planets; new discoveries in our Universe; and leaps in technology, which mean amateurs can take pictures as good as the Hubble Space Telescope. What a privilege it is to work on a programme with such a huge heritage! I am constantly amazed looking back at the flotilla of excellent programmes which have gone out over the past five decades. The Sky at Night has always been at the sharp end of science broadcasting, whether it's showing the first view from the far side of the Moon or pictures of a new comet which has swept into our sky. Viewers can depend on Sir Patrick to tell them the latest news and explain what it means. It's an outstanding achievement and Sir Patrick still holds the world record for being the same presenter on the longest running TV programme. Our guests love coming down to Farthings, Sir Patrick's home. For them, me- ing him is like meeting their astronomical hero. Over the past five decades, the Sky at Night has managed to talk to the space scientists and astronomers making the landmark discoveries. No matter how busy they are, they make room for Sir Patrick.

According to a recent survey, the most popular question about science from the general public was: what came before the Big Bang? We all know on some level what the Big Bang is, but we don't know how it became the accepted theory, or how we might know what came before. In "Before the Big Bang", Brian Clegg (the critically acclaimed author of "Upgrade Me" and "The God Effect") explores the history of this remarkable concept. From the earliest creation myths, through Hershel's realization that the Milky Way was one of many galaxies, to ongoing debates about Black Holes, this is an incredible look at the origins of the universe and the many theories that led to the acceptance of the Big Bang. But the idea of Big Bang doesn't so much answer questions as raise new ones. Clegg challenges the notion of the 'Big Bang' itself, and raises the deep philosophical question of why we might want to rethink the origin of the universe. This is popular science at its best, exploratory, controversial, and utterly engrossing.

Ever since the serendipitous discovery of planet Uranus in 1871, astronomers have been hunting for new worlds in the outer regions of our solar system. This exciting and ongoing quest culminated recently in the discovery of hundreds of ice dwarfs in the Kuiper belt, robbed Pluto from its 'planet' status, and led to a better understanding of the origin of the solar system.

This timely book reads like a scientific 'who done it', going from the heights of discovery to the depths of disappointment in the hunt for 'Planet X'. Based on many personal interviews with astronomers, the well-known science writer Govert Schilling introduces the heroes in the race to be the first in finding another world, bigger than Pluto.

An introduction to using a telescope and observing the night sky. Telescopes and accessories are explained. There is an introduction to sky charts and their nomenclature. Some sky charts are presented indicating the position of popular celestial objects. There is a section on photography with example photos. Hopefully, there is enough to get you started in this interesting subject. There is also a section on amateur telescope making, how to make your own dobsonian telescope and scotch mount. Finally, there is a list of web links to astronomy sites, manufacturers and dealers of equipment and software.

Book & DVD. The further the lunar landings regress into history, the more important the TV images have become. Until now the background story of this important footage has been overlooked. The TV systems used on Apollo were not without controversy. When President Kennedy issued the challenge to successfully land men on the moon and return them safely to earth by the end of the 1960's, NASA unwittingly found itself facing a two-fold predicament. Should the American taxpayer be privy to a front row seat via television, and would it be possible to develop compact TV cameras for just such a purpose within the allotted timeframe? Drawing upon the skill and knowledge of RCA and Westinghouse engineers a series of TV cameras were developed which revolutionised not only space exploration, but electronic news gathering as a whole. This book covers everything from the earliest known proposals of lunar TV coverage, and on through the political battles that ultimately led to the TV system which flew on the Apollo missions. The book takes what some may see as a very sterile or niche topic, and extends it into an interesting subject anyone can understand and appreciate. This book can be compared to the "Making of..." documentaries which often accompany feature films. For the first time, the live telecasts from the moon are given their own complete "Making of..." account.