The reviews presented in this volume cover a huge range of cluster of galaxies topics. Readers will find the book essential reading on subjects such as the physics of the ICM gas, the internal cluster dynamics, and the detection of clusters using different observational techniques. The expert chapter authors also cover the huge advances being made in analytical or numerical modeling of clusters, weak and strong lensing effects, and the large scale structure as traced by clusters.

Travelling from the edge of our Solar System, through the Milky Way and to the outer edges of the observable universe, Deep Space is a spectacular photographic guide to galaxies, nebulae, supernova, clusters, black holes and quasars. Learn about the birth of stars in our own galaxy, planets beyond our own solar system, when they were first discovered and how we have managed to photograph these places. Ranging from the Magellanic Clouds within the Milky Way to stellar life cycles, from other spiral galaxies such as the Andromeda Galaxy, to the Sombrero Galaxy, and from nebulae such as the Pillars of Creation to black and white dwarfs, this is accessibly written for the general reader to grasp the science and magnitude of deep space. Featuring 200 outstanding colour photographs and expert captions, Deep Space is most certainly out of this world.

Jan H. Dort's work Ad: r>iaan Blaauw Meritus Emeritus Harry van der Laan 21 Jan Hendrik Dort and Dutch astronomy H. G. van Bueren 31 Dort's scientific importance on a world-wide scale Bengt Stromgren 39 Gart and international co-operation in astronomy D. H. Sadler 45 Reminiscences of the early nineteen-twenties Peter Van de Kamp 51 The first five years of Jan Dort at Leiden, Bart J. Bok 1924-1929 55 Early galactic structure Per Olof Lindblad 59 Early galactic radio astronomy at Kootwijk C. A. Muller 65 W. N. Christiansen Dort and his large radiotelescope 71 Ten years of discovery with Dort's Synthesis Radio Telescope R. J. Allen and R. D. Ekers 79 Gort's work on comets Maarten Schmidt 111 The evolution of ideas on the Crab Nebula L. WoUjer 117 Gort's work reflected in current studies of galactic CO W. B. Burton 123 On high-energy astrophysics V. L. Ginzburg 129 Dort and extragalactic astronomy Margaret and Geoffrey Burbidge 141 Birthday wishes John A. and Janette Wheeler 151 The Earth and the Universe Abraham H. Oort 153 The challenge of Jan Dort J. H. Bannier 157 Jan Dort at the telescope Fjeda Walraven 161 Gart Westerhout Personal recollections 163 Style of research Henk van de Hulst 165 Manuscript Jan H.

Four hundred years ago, on 25 September 1608, the lens maker Hans Lipperhey from Middelburg in the Netherlands traveled to The Hague to apply for a patent regarding his invention of the "spyglass." The Commander in Chief of the Dutch armed forces, Prince Maurice of Nassau, was quite impressed. However, since the instrument could be easily copied, Lipperhey was not granted the patent. Nevertheless, within a year Galileo Galilei aimed a telescope that he had built based on the principals of Lipperhey's device on the skies, forever changing the way astronomy was done.

To celebrate the invention of the telescope and the resulting developments, Leiden Observatory, in cooperation with ESTEC, organized an international meeting on "400 Years of Astronomical Telescopes." The meeting took place from 29 September - 2 October 2008 at the ESTEC conference centre. This book presents the highlights of this meeting under the following categories: History of Optical Telescopes, History of Non-Optical Telescopes, Miscellaneous Aspects and Projects, Fundamental Telescope Technologies, Political and Sociological Aspects, Perspectives for Future Telescopes.

The topical reviews have been written by internationally recognized leaders of the field. This book is intended as a first reference to many technical, historical and social aspects concerning astronomical telescopes. It is equally well suited to professional astronomers as to the interested public.

"The history of space exploration is best presented in this book of NASA photographs, whose images are universally inspirational." - Commander James Lovell, Apollo 13 NASA has worked at the forefront of space exploration and research since 1958. Their devotion to furthering our understanding of what lies beyond our atmosphere has seen 12 humans walk on the surface of the moon, helped form the International Space Station, and placed numerous rovers on Mars. Voyager 1, launched by NASA on 5 September 1977, is the furthest manmade object from earth, having left our solar system entirely - and the agency's plans for the future are equally inspiring. This book celebrates NASA throughout the years, from its inception to its 60th anniversary in 2018, and beyond. A visual tour-de-force, the book collects high resolution NASA photos of historic significance; from rarely seen photos and the words of President John F. Kennedy commanding the space race, to the many triumphs and tragedies of the Apollo Missions, moon landings, the International Space Station, space shuttles, journeys to Mars and explorations of our galaxy's outer reaches. These breathtaking images are complemented by heartfelt words of hope and imagination for the future, encouraging readers to admire their world from a different perspective. Out of This World: Historic Milestones in NASA's Human Space Flight is a stunning 300 page book.

Nothing captivates the human imagination like the vast unknowns of space. Ancient petroglyphs present renderings of the heavens, proof that we have been gazing up at the stars with wonder for thousands of years. Since then, mankind has systematically expanded our cosmic possibilities. What were once flights of fancy and dreams of science fiction writers have become nearly routine - a continuous human presence orbiting the Earth, probes flying beyond our solar system, and men walking on the moon. NASA and the Russian space program make traveling to the stars look easy, but it has been far from that. Space travel is a sometimes heroic, sometimes humorous, and always dangerous journey fraught with perils around every corner that most of us have never heard of or have long since forgotten. Space Oddities brings these unknown, offbeat, and obscure stories of space to life. From the showmanship and bravado of the earliest known space fatality, German Max Valier, to the first ever indictment under the Espionage Act on an Army officer who leaked secrets concerning the development of early U.S. rockets; and the story of a single loose bolt that defeated the Soviet Union's attempt to beat America to the moon. Author Joe Cuhaj also sheds light on the human aspects of space travel that have remained industry secrets - until now: how the tradition of using a musical playlist to wake astronauts up began, fascinating tales about inventions like the Fischer Space Pen, Omega watches, and even Tang breakfast drink. In addition to fun and entertaining space trivia, Space Oddities also features stories of the profound impact that space travel has had on challenges right here at home, like the effort by civil rights leaders and activists in the 1960s to bring the money from the space program back home to those in need on Earth; NASA's FLATs (First Lady Astronaut Training) program and the 25 women who were selected to become astronauts in 1960, but were denied a chance at flying even after successfully completing the rigorous astronaut training program; and, the animals who many times sacrificed their lives to prove that man could fly in space. Filled with rare and little-known stories, Space Oddities will bring the final frontier to the homes of diehard space readers and armchair astronauts alike.

Professor Brian Cox is back with another insightful and mind-blowing exploration of space. This time he shows us our universe as we've never seen it before. 13.7 billion years old. 93 billion light years wide. It contains over 100 billion galaxies, each containing hundreds of billions of stars. This infinite, vast and complex Universe has been the subject of human fascination and scientific exploration for thousands of years. The wonders of the Universe might seem alien to us and impossible to understand, but away from the telescopes, the labs and the white coats, Professor Brian Cox uses the evidence found in the natural world around us to explain its simple truths. The same laws of light, gravity, time, matter and energy that govern us here on Earth are the same as those applied in the Universe. Using 3D CGI imagery, his expert knowledge and his infectious enthusiasm, Professor Cox shows us that if we can understand the impact of these governing laws on Earth it will bring us a step closer to an understanding of our Universe.

Here, for the first time, in a brilliant, panoramic portrait by the Pulitzer Prize-winning author of The Making of the Atomic Bomb, is the definitive, often shocking story of the politics and the science behind the development of the hydrogen bomb and the birth of the Cold War. Based on secret files in the United States and the former Soviet Union, this monumental work of history discloses how and why the United States decided to create the bomb that would dominate world politics for more than forty years.

Lonely Planet Kids' Amazing Night Sky Atlas, the follow up to our bestselling Amazing World Atlas, looks upwards to the skies for a fun- and fact-packed guide to astronomy. Featuring a mixture of photography and illustration, this hardcover book explores both the science of stargazing - explaining what can be seen in the night sky in different parts of the world - and the practicalities, with handy tips such as how to use a telescope. It also covers the background and history of astronomy, travelling around the world to discover the different stories cultures have told about the night sky and the influence the Moon, the stars and the movement of the planets have had on their people. Expert insights come from David Hawksett, a science writer, lecturer and researcher who has previously worked as the Science & Technology Consultant at Guinness World Records and written for Sky at Night Magazine. Perfect for learning at home, in the classroom or being given as a gift, Lonely Planet Kids' Amazing Night Sky Atlas will inspire budding astronomers and excite them for a lifetime of looking to the skies. Contents includes: Introduction to the Night Sky History of stargazing How to use a telescope Constellations Seasons in the Sky The Zodiac Patterns in the Sky - a global guide Planets Stars Supernovas Black Holes Nebulas Meteor Showers Eclipses Night sky legends from around the world About Lonely Planet Kids: Lonely Planet Kids - an imprint of the world's leading travel authority Lonely Planet - published its first book in 2011. Over the past 45 years, Lonely Planet has grown a dedicated global community of travellers, many of whom are now sharing a passion for exploration with their children. Lonely Planet Kids educates and encourages young readers at home and in school to learn about the world with engaging books on culture, sociology, geography, nature, history, space and more. We want to inspire the next generation of global citizens and help kids and their parents to approach life in a way that makes every day an adventure. Come explore!

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 brief guide to the real science of interstellar travel With known exoplanets now numbering in the thousands and initiatives like 100 Year Starship and Breakthrough Starshot advancing the idea of interstellar travel, the age-old dream of venturing forth into the cosmos and perhaps even colonizing distant worlds may one day become a reality. A Traveler's Guide to the Stars reveals how. Les Johnson takes you on a thrilling tour of the physics and technologies that may enable us to reach the stars. He discusses the latest exoplanet discoveries, promising interstellar missions on the not-so-distant horizon, and exciting new developments in space propulsion, power, robotics, communications, and more. But interstellar travel will not be easy, and it is not for the faint of heart. Johnson describes the harsh and forbidding expanse of space that awaits us, and he addresses the daunting challenges-both human and technological-that we will need to overcome in order to realize tomorrow's possibilities. A Traveler's Guide to the Stars is your passport to the next great frontier of human discovery, providing a rare inside look at the remarkable breakthroughs in science and technology that will help tomorrow's space travelers chart a course for the stars.

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.

Astronomy on the Personal Computer provides the reader with a thorough introduction to the computation of celestial mechanics, which is of particular significance to astronomical observation. Covering everything from astronomical and computational theory to the construction of rapid and accurate applications programs, this book supplies the necessary knowledge and software solutions for determining and predicting the positions of the Sun, Moon, planets, minor planets and comets, solar eclipses, stellar occultations by the Moon, phases of the Moon and much more. This completely revised edition makes use of the widely implemented programming language C++, and individual applications may be efficiently realized through the use of a powerful module library. The accompanying CD-ROM contains, in addition to the complete, fully documented and commented source codes, the executable programs for use with the Windows 95/98/NT and Linux operating systems.

The Photographic Atlas of the Stars contains 50, high-quality full color photographs of the entire night sky of the northern and southern hemispheres. Each plate is accompanied by a star map of the identical area, which identifies the main stars of the constituent constellations as well as other interesting astronomical objects. In addition to this detail, Sir Patrick Moore has written a commentary for each plate that highlights the stars and objects of interest to observers equipped with binoculars and that includes detailed tabular information on astronomical objects of the region. The resulting double-page spread provides an invaluable reference for the amateur astronomer, detailing the constellations and other heavenly bodies of interest that are observable with the naked eye, binoculars, or a small telescope.

Seeing Stars is written for astronomers, regardless of the depth of their theoretical knowledge, who are taking their first steps in observational astronomy. Chris Kitchin and Bob Forrest - both professional astronomers - take a conducted tour of the night sky and suggest suitable observing programmes for everyone from beginners to experts. How is this book different? We are all familiar with the beautiful images of planets and galaxies obtained by spacecraft and giant telescopes - but what can you really see with a small telescope? What should you expect from a small refractor or reflector? And what is the effect of observing from a site near a city? The answers are all here, with many photographs that will illustrate exactly what can be seen with different instruments (everything from the naked eye to a 300mm telescope) - and from different locations.

Astronomy, especially naked-eye astronomy, is a wonderful way for children and young people to engage with the world and universe around them. Many children quickly become fascinated with stars, planets and comets, learning skills that also help them develop generally. This book is a perfect introduction to astronomy for any child, whether or not they have a telescope. It explains the visible constellations and then explores the sun, moon, planets, comets and meteorites. Colour illustrations and diagrams at every stage help children relate what they are reading to what they can see in the sky. Suitable for budding astronomers in both the northern and southern hemispheres, and in polar, temperate or tropical latitudes (i.e., everywhere), this is an ideal introduction the wonders of stargazing.

Has anyone ever seen with their own eyes that the Earth goes around the sun? Even to this day, no one has. However, 500 and even 2000 years ago, some astronomers managed to point out that this is the case. At that time, people's range of activities was strictly confined, the technology and tools used were extremely primitive, and many of the mathematical methods used today had not been developed. How did those astronomers make and verify this discovery? This book explains this exciting demonstration process. It enables anyone with a basic junior-high-school knowledge of geometry and a certain degree of spatial imagination to understand this and other interesting discoveries in the solar system. By demonstrating this interesting process, the book not only satisfies readers' curiosity using the simplest mathematics, but also inspires them to explore the new and unknown world.

This book with its clear explanation of the nature of the universe assumes no prior knowledge of astronomy or cosmology and so will attract interested public and new amateur astronomers.It provides much more on large-scale structures than other popular-level cosmology books. The mix of cosmology /large scale structures/anthropic principle and perspective on the universe should, as far as the author knows, be unique. A special colour feature incorporated in the book will offer three-dimensional views of the surrounding universe to ever greater depths.

When the Apollo astronauts went to the moon, the whole world watched. When the Fly Me to the Moon art quilt challenge went out, it went global. This book showcases the curated results of that call for entries: 179 art quilts by over 130 artists from 8 countries, expressing their interpretation of the space program and all things lunar. Walk down memory lane or discover the story of the missions for the first time, but most importantly, enjoy a trip to the moon and beyond without the time and rigors of space training. As you travel into space, meet the astronauts, hum the tunes, and listen to the artists tell you about their pieces. Find endless inspiration and discover what the moon is really made of: cotton, thread, crystals, paint, ink, tulle, and crocheted lace.

Astronomer Royal Martin Rees shows how the behaviour and origins of the universe can be explained by just six numbers. How did a single genesis event create billions of galaxies, black holes, stars and planets? How did atoms assemble - here on Earth, and perhaps on other worlds - into living beings intricate enough to ponder their origins? This book describes the recent avalanche of discoveries about the universe's fundamental laws, and the deep connections that exist between stars and atoms - the cosmos and the microscopic world. Just six numbers, imprinted in the big bang, determine the essence of our world, and this book devotes one chapter to explaining each.