In the past few years, a handful of scientists have been in a race to explain a disturbing aspect of our universe: only 4 percent of it consists of the matter that makes up you, me, our books, and every planet, star, and galaxy. The rest—96 percent of the universe—is completely unknown.   Richard Panek tells the dramatic story of how scientists reached this conclusion, and what they’re doing to find this "dark" matter and an even more bizarre substance called dark energy. Based on in-depth, on-site reporting and hundreds of interviews—with everyone from Berkeley’s feisty Saul Perlmutter and Johns Hopkins’s meticulous Adam Riess to the quietly revolutionary Vera Rubin—the book offers an intimate portrait of the bitter rivalries and fruitful collaborations, the eureka moments and blind alleys, that have fueled their search, redefined science, and reinvented the universe.

    And yet, disturbingly, in today's so-called information age, pseudoscience is burgeoning with stories of alien abduction, channeling past lives, and communal hallucinations commanding growing attention and respect. As Sagan demonstrates with lucid eloquence, the siren song of unreason is not just a cultural wrong turn but a dangerous plunge into darkness that threatens our most basic freedoms.

    By studying the physical astronomy of all the planets in the Solar System, we can attempt to understand their true nature. Ultimately, these lectures will bring us to a greater understanding of the Solar System's creation, which brings us again back to the beginning and what it means to us as we look outward from our rotating Earth.

    In this masterfully written and brilliantly informed work of scientific history and explanation, Dr. Thorne, the Feynman Professor of Theoretical Physics at Caltech, leads his readers through an elegant, always human, tapestry of interlocking themes, coming finally to a uniquely informed answer to the great question: what principles control our universe and why do physicists think they know the things they think they know? Stephen Hawking's A Brief History of Time has been one of the greatest best-sellers in publishing history. Anyone who struggled with that book will find here a more slowly paced but equally mind-stretching experience, with the added fascination of a rich historical and human component.

    From blue moons to Betelgeuse, it's all in this witty, fact-packed, profusely illustrated guide to the heavens by the author of Discover magazine's popular "Night Watchman" column.

    This perfect guide for both seasoned and novice seaglunkers reveals how to locate the best beaches and predict optimum conditions; understand coastal access laws; determine the personal and professional value of sea glass; and identify the source of individual fragments.

    Now in its 4th Edition, revisions include 250 updated range maps, and new classification information National Geographic is reissuing the Field Guide to the Birds of North America in the 4th edition, focusing on its accuracy and easy use in the field. This is the ultimate birders field guide - sturdy, easy to carry and use, and featuring the most complete information among bird guides. It features all species known to breed in North America, including those that are regular visitors to our continent or that drop in occasionally - more than 800 in all. The edition is lavishly illustrated with specially commissioned full-colour illustrations, plus newly updated range maps and detailed descriptions. A superb new index allows birders in the field to quickly identify a species.

    This new edition specifically features three new care plans, two expanded care plans, updated content and language reflecting the most current clinical practice and professional standards, enhanced QSEN integration, a new emphasis on interprofessional collaborative practice, an improved page design, and more. It's everything you need to create and customize effective nursing care plans!

    Included are extra close-up charts of the Orion Nebula, Pleiades, Virgo Galaxy Cluster, and Large Magellanic Cloud.

    A playful, entertaining, and mind-bending introduction to modern physics, it's already a major bestseller in Italy and the United Kingdom. Carlo Rovelli offers surprising—and surprisingly easy to grasp—explanations of general relativity, quantum mechanics, elementary particles, gravity, black holes, the complex architecture of the universe, and the role humans play in this weird and wonderful world. He takes us to the frontiers of our knowledge: to the most minute reaches of the fabric of space, back to the origins of the cosmos, and into the workings of our minds. “Here, on the edge of what we know, in contact with the ocean of the unknown, shines the mystery and the beauty of the world,” Rovelli writes. “And it’s breathtaking.”

    Now in it's tenth edition, this text makes chemistry exciting to students by showing them why important concepts are relevant to their lives and future careers.

    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.

    In ten short chapters of lyrical prose—each one an ode to a breathtaking realm of discovery—Stefan Klein uses everyday objects and events as a springboard to meditate on the beauty of the underlying science. Klein sees in a single rose the sublime interdependence of all life; a day of stormy weather points to the world’s unpredictability; a marble conjures the birth of the cosmos. As he contemplates the deepest mysteries—the nature of reality, dark matter, humanity’s place among the galaxies, and more—Klein encourages us to fall in love with the universe the way scientists do: with a grasp of the key ideas and theories of twenty-first-century physics that bring to life the wonders of, really, everything. You won’t look at a rose—or at our world—the same way again.

    More than 20 hikes, ranging from easy to difficult, are covered in depth, with trail descriptions, elevation charts, maps, and photos. Chapters on history, geology, ecology, and wildlife are included along with essential information on lodging, camping, outdoor adventures, and popular park activities in Yosemite Valley, Tuolumne Meadows, Wawona, and Hetch Hetchy. From the world-famous views of cliffs, waterfalls, polished granite domes, and giant sequoia groves to fine dining at the High Sierra Camp, this comprehensive travel companion allows anyone to access this fascinating park.

    With superb color sky charts, diagrams, or photographs on almost every page, and clear and engaging writing, Stars and Planets is the most user-friendly and informative guide to the night sky. The product of more than twenty years' collaboration between one of the world's leading astronomy writers and the world's foremost celestial mapmaker, the new Stars and Planets features a slightly larger (but still compact) size, a more spacious and attractive design, and much new material, including more information on galaxies and star types. Simply put, Stars and Planets is indispensable. Don't leave home--at night--without it. Detailed charts covering all 88 constellations in the Northern and Southern hemispheres Data and notes on all bright stars and other objects of interest Detailed Moon maps and descriptions of the main lunar features Tips on choosing and using binoculars and telescopes, to suit any budget The only guide to provide annual planetary data as a downloadable Web resource