But what if, nonetheless, Einstein got it wrong?Since the 1930s, physicists have noticed an alarming discrepancy between the universe as we see it and the universe that Einstein's theory of relativity predicts. There just doesn't seem to be enough stuff out there for everything to hang together. Galaxies spin so fast that, based on the amount of visible matter in them, they ought to be flung to pieces, the same way a spinning yo-yo can break its string. Cosmologists tried to solve the problem by positing dark matter—a mysterious, invisible substance that surrounds galaxies, holding the visible matter in place—and particle physicists, attempting to identify the nature of the stuff, have undertaken a slew of experiments to detect it. So far, none have.Now, John W. Moffat, a physicist at the Perimeter Institute for Theoretical Physics in Waterloo, Canada, offers a different solution to the problem. The cap­stone to a storybook career—one that began with a correspondence with Einstein and a conversation with Niels Bohr—Moffat's modified gravity theory, or MOG, can model the movements of the universe without recourse to dark matter, and his work chal­lenging the constancy of the speed of light raises a stark challenge to the usual models of the first half-million years of the universe's existence.This bold new work, presenting the entirety of Moffat's hypothesis to a general readership for the first time, promises to overturn everything we thought we knew about the origins and evolution of the universe.

    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.

    Written by one of the world's leading experimental cosmologists, this short but deeply insightful book describes what scientists are revealing through precise measurements of the faint thermal afterglow of the Big Bang--known as the cosmic microwave background, or CMB--and how their findings are transforming our view of the cosmos.Blending the latest findings in cosmology with essential concepts from physics, Lyman Page first helps readers to grasp the sheer enormity of the universe, explaining how to understand the history of its formation and evolution in space and time. Then he sheds light on how spatial variations in the CMB formed, how they reveal the age, size, and geometry of the universe, and how they offer a blueprint for the formation of cosmic structure.Not only does Page explain current observations and measurements, he describes how they can be woven together into a unified picture to form the Standard Model of Cosmology. Yet much remains unknown, and this incisive book also describes the search for ever deeper knowledge at the field's frontiers--from quests to understand the nature of neutrinos and dark energy to investigations into the physics of the very early universe.

    Purchasers are entitled to a free trial membership in the General Books Club where they can select from more than a million books without charge. Subjects: Astronomy; History / General; Juvenile Nonfiction / Science

    But gravitational waves – ripples in the fabric of space and time – are unrelenting, passing through barriers that stop light dead.At the two 4-kilometre long LIGO observatories in the US, scientists developed incredibly sensitive detectors, capable of spotting a movement 100 times smaller than the nucleus of an atom. In 2015 they spotted the ripples produced by two black holes spiralling into each other, setting spacetime quivering.This was the first time black holes had ever been directly detected – and it promises far more for the future of astronomy. Brian Clegg presents a compelling story of human technical endeavour and a new, powerful path to understand the workings of the universe.Brian Clegg’s most recent books are The Reality Frame (Icon, 2017), What Colour is the Sun? (Icon, 2016) and Ten Billion Tomorrows (St Martin’s Press, 2016). His Dice World and A Brief History of Infinity were both longlisted for the Royal Society Prize for Science Books. He has also written Big Data for the Hot Science series. Brian has written for numerous publications including The Wall Street Journal, Nature, BBC Focus, Physics World, The Times and The Observer. Brian is editor of popularscience.co.uk and blogs at brianclegg.blogspot.com.

    But what if it actually is nothing more than ordinary matter purposely hidden from our view? What if we are only allowed to see a small fraction of the stars in our galaxy, because the vast majority of star systems are teeming with aliens who wish to remain unseen? Marc Zemin, a brilliant student of astrophysics, is the first human to ever stumble upon this startling secret, when his experiments with wormhole travel cause aliens to land on Earth and whisk him away into space. To his astonishment, the aliens want his help in fighting a colossal galactic war that is rapidly spiraling out of control. But as he struggles to survive from battle to battle across the farthest reaches of the galaxy, he begins to uncover a horrifying conspiracy at play, striving to keep the warring civilizations in continuous conflict with each other. A desperate race against time ensues, as he and a handful of newfound alien friends try to stop the war and confront this mysterious, powerful force bent on destroying all life in the galaxy. But any hope of their success surprisingly appears to hinge on just one thing - whether or not Marc has the strength to overcome his own demons and face the shattering truth about who he really is. "A sci-fi debut that shows great potential." - Kirkus Discoveries

    By the author of Gorgon. 35,000

    These are not inventions of fantasy or science fiction, but are places that really exist-in our own solar system.Now with 190,000 copies in print, here is a spectacular Grand Tour of the solar system featuring a unique blend of science and art-photographs along with dazzling full-color paintings, drawings, and maps based on years of astronomer William Hartmann's research, personal observation, and interviews with colleagues. In text and diagrams, too, The Grand Tour explains how the strange and uncanny worlds on the journeys came to be, and what it would be like to actually set foot upon them today. The book includes an atlas of the planets and their satellites, and of the Earth's moon. Complete with a selection of previously unpublished photographs taken by the Apollo astronauts, and by the Mariner, Viking, and Pioneer planetary probes, The Grand Tour is unique and breathtaking, majestic and eerie, and wonderful, taking the reader to more, and to the beyond. Selection of the Book-of-the-Month Club, Quality Paperback Book Club, and Newbridge Book Club.

    DI Andy Tregunna is faced with the task of leading the investigation, but soon personal matters force him to step back.On compassionate leave and with little else to do than fight his own demons the unsolved case becomes more and more an obsession to him. As he is drawn deeper into a dark world of secrets, lies and revenge, his private investigation collides with his personal life.The truth is even more sinister than can be imagined...

    

    Yet for one local family, the happy holiday atmosphere risks becoming a cruel joke, as the unusually-named Lewis Lewis’s affair with close friend Nia Martin threatens to tear his marriage apart. The irritation of Lewis’s wife Dora is channeled towards their daughter, Rhiannon, who works at Nia’s sweet shop, Temptations. With his family at war and the gossip beginning to spread, it can only be a matter of time before Lewis’s misadventures catch up with him…From the bestselling author of the Holidays at Home and Badgers Brook sagas, Corner of a Small Town introduces new series characters: the troubled Lewis family, the haughty Weston dynasty and the mischievous Griffiths clan. It will charm and enthrall fans of Freda Lightfoot and Kitty Neale. The Pendragon Island Sagas Corner of a Small Town The Weston Girls Unlocking the Past Maisie's Way A Shop on the High Street Sophie Street

    Nicola tries to forget the past and learn independence, whilst Ceri meets Tom, but how can anyone love a man who laughs at everything, including her?Harbour Hill is the compelling story of the dramatic events which change – and enrich – their lives.

    How to win Hello Neighbor. With the success of my hundreds of other written guides and strategies I have written another advanced professional guide for new and veteran players. This gives specific strategies and tips on how to progress in the game, beat your opponents, acquire more coins and currency, plus much more! Hello Neighbor for is a stealth action game. Its primary mechanic is the advanced artificial intelligence that lets the neighbor remember the players actions to foresee his future moves. Avoiding detection — essential to complete the game — thus becomes more complicated the more the player takes a similar path while trying to sneak past the neighbor. Frequently taken routs are quickly armed with traps (that prevent escape), obstacles (such as boards in windows), and alarms (like cameras placed here and there) This e-book includes: - Professional Tips and Strategies. - Cheats and Hacks for Hello Neighbor - Beat the Game for Hello Neighbor - Secrets. - Powerups. - Secrets, Tips, Cheats, Unlockables, and Tricks for Hello Neighbor Used By Pro Players! - PLUS MUCH MORE! Focused on helping gamers not just clear their games, but completely master them. A must-have resource for any true fan! Download Now! Disclaimer: This guide is an unofficial version and is not endorsed by or affiliated with the creator of this video game or its licensors

    She never knew her father, barely knew her drug-addicted mother but managed to somehow find a way to seek out a life for herself. She is willing to do do whatever she has to do to make her money. Yet, she’s still not yet where she wants to be in life. A chance encounter with a tall, dark, and potentially dangerous man may change everything. Dylan came from nothing and made himself something people in the underground scene respect and fear. With more money than he’ll ever be able to spend alone and more women than he knows what to do with, his life is full, but he’s still not satisfied… that is until he lays eyes on Alivia at a party. She is exactly the kind of woman he needs in his life, but is she willing to welcome him and his playboy ways into her life? Find out what happens in part one of Torn Between A Thug & A Boss!

    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.