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Maps of The locations of asteroid craters on the earth on endpapers.
Asteroids suggest images of a catastrophic impact with Earth, triggering infernos, tidal waves, famine, and death -- but these scenarios have obscured the larger story of how asteroids have been discovered and studied. During the past two centuries, the quest for knowledge about asteroids has involved eminent scientists and amateur astronomers, patient research and sudden intuition, advanced technology and the simplest of telescopes, newspaper headlines and Cold War secrets. Today, researchers have named and identified the mineral composition of these objects. They range in size from 33 feet to 580 miles wide and most are found in a belt between the orbits of Mars and Jupiter. Covering all aspects of asteroid investigation, Curtis Peebles shows how ideas about the orbiting boulders have evolved. He describes how such phenomena as the Moon's craters and dinosaur extinction were gradually, and by some scientists grudgingly, accepted as the results of asteroid impacts. He tells how a band of icy asteroids rimming the solar system, first proposed as a theory in the 1940s, was ignored for more than forty years until renewed interest and technological breakthroughs confirmed the existence of the Kuiper Belt. Peebles also chronicles the discovery of Shoemaker-Levy 9, a comet with twenty-two nuclei that crashed into Jupiter in 1994, releasing many times the energy of the world's nuclear arsenal. Showing how asteroid research is increasingly collaborative, the book provides insights into the evolution of scientific ideas and the ebb and flow of scientific debate.
Grounded in historical studies of asteroids from the nineteenth century, Asteroids is a fully up-to-date view of these remarkable objects. Without resorting to any technical diagrams or mathematics, Clifford J. Cunningham shows that asteroids are not just rocks in space, but key to understanding the life and death on Earth of both animals and humans. From space missions to the asteroids’ starring role in literature and film, Cunningham precisely and entertainingly looks at the place asteroids have in our solar system and how they affect our daily lives.
The incomprehensible notion of a very large chunk of ice or rock from outer space smashing into the Earth has only become mainstream within the past two centuries. Though early writers imagined the utterly fantastic consequences of comet collisions and speculated on the devastation they might wreak, it was not until the 1980s when scientists finally resolved that dinosaurs were extinguished by an asteroid 66 million years ago. This startling announcement captivated the media and tilted the science fiction world but in reality, history may have been punctuated repeatedly by such events. This book collects and analyzes ideas of asteroid, comet, and planetary impacts with Earth spanning two centuries, from the first realization of extinctions in fossil records to the new millennium, reflected in scores of sci-fi stories, films, and televised science documentaries. The author examines social and geopolitical fears tied to the prospect of a cosmic-borne catastrophe. Science, fiction, and speculation are artfully melded.
Have you ever wished on a shooting star? Shooting stars often appear when the earth passes through the dust and debris left by a passing comet. Explore Comets and Asteroids! With 25 Amazing Projects takes readers ages 7 to 10 on a fantastic journey through space, where they investigate comets, asteroids, and lesser-known space wonders through 25 experiments and activities designed for curious kids. Readers learn about everything from the first asteroid discovered to many current spacecraft missions. They also investigate famous comets, such Halley’s comet, which returns faithfully every 75 or 76 years. Learning about comets and asteroids means asking lots of questions. Could we live and work on asteroids? Why do we only occasionally see comets? Kids find the answers and more through hands-on projects and experiments that encourage them to be curious about how and why things work. Activities range from mapping the positions of celestial objects to designing spacecraft for asteroid missions. By combining science with activities, fun facts, and cartoons, kids will investigate, create, design, test, and redesign. Explore Comets and Asteroids! inspires kids to want to know more about how these rocky worlds formed and how they may have shaped life on Earth.
Overloaded with the mass of information on the Internet? Frustrated by how difficult it is to find what you really want? Now you don't need to spend hours browsing around the Internet or grappling with the huge number of "hits" from an Internet search engine: the Directory of Web Sites will take you straight to the best educational sites on the Internet. From archaeology to zoology, from dance to technology, the Directory provides information more than 5,500 carefully selected Web sites that represent the best of what the Internet has to offer. The sites are grouped by subject; each one features a full description; and the text is complemented throughout by screenshots and fact boxes. As well, sites have been selected purely on educational merit: all sites with overtly commercial content and influence from Internet providers have been excluded.
Does the Bible predict an asteroid…or something else? This book will challenge your interpretation of end-times theology and help you sharpen your understanding in light of current times. Does Revelation 8:10–11 describe an asteroid? Is the Wormwood star from Revelation 8 already headed toward Earth? Are NASA and high-level government officials aware of an asteroid that is on a collision course with our planet? Is that why President Trump sanctioned a colossal increase to planetary defense? Do the prophecies from ancient cultures and religions across the globe all point to a catastrophic planetary event that has scientists and politicians taking extreme preventative measures under the public radar? Earth is not currently prepared for the scope of impact that may be just around the corner, and people in high places know it… But what will the biblical Wormwood actually be? Traditional scholarly interpretation claims it will be an asteroid. Others postulate that the eschatological poisoning of one-third of all Earth's waters and the devastation of our planet's ecology might not be as detectable as we may believe: it could hit suddenly and without warning, like an angel of God appearing in the sky with fire and light, bringing judgment in an instant. Follow Thomas Horn as he blazes a trail through these questions and many others, posing answers that very few in the church today are willing to provide. FEATURES AND BENEFITS: Examines asteroid threats to Earth, including Apophis (named after the Egyptian god of chaos), which is a topic of serious discussion among experts in planetary defense Includes interviews with government impact specialists, scientists, Bible scholars, and prophecy experts
From America's favorite stargazing instructor, a guide to Ohio's night sky, with detailed text, monthly star maps, constellation diagrams, and more than 80 color photographs.
Written in a folksy, down-to-earth style, this user-friendly guide to the night sky is designed for beginner and intermediate stargazers ages twelve and up. It begins with chapters explaining the stars, nebulae, star clusters, and galaxies—and what readers can expect to see from their own backyards with a modicum of equipment. Northern California StarWatch then examines the major constellations, offering updated tales of the mythology surrounding them and detailing their seasonal movement in the sky. Later chapters delve into the moon, solar and lunar eclipses, planets, and "celestial extras" such as comets, meteor showers, and aurora borealis. The final chapter provides advice on purchasing a telescope and other stargazing equipment. Appendices include monthly star maps for Northern California’s northern latitude, a local resource guide, and a list of Northern California’s brightest stars.