In The Days Of The Comet Movie

Introduction to Comets

We have now reached an exciting time in cometary research. With several missions launched or about to be launched in the near future, cometary research is rapidly being driven forward. This book describes the wealth of information known prior to the return of Halley's comet, and the new information discovered since then. It presents material on important background topics including observational techniques, plasma physics, celestial mechanics, the solar wind and cosmogony. The science of comets is described in order of its discovery, from tail phenomena to coma morphology through to the most recent findings from space missions. The relationship between comets and asteroids is discussed, and future space missions to investigate comets are described. This comprehensive text is a complete and up-to-date treatment of the subject, suitable for graduate and advanced undergraduate students of astronomy and planetary science.

Halley's Comet Is Coming Silly Trivia Book

When the Asteroid Hits

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.