"What are asteroids, comets, and meteors made of? What can scientists do if an asteroid is headed toward Earth? Learn how astronomers prepare for space objects hitting Earth, from tracking them to building asteroid-hunting telescopes. Budding astronomers will learn all about meteors, asteroids, and comets, including the history of asteroids hitting Earth and the differences between space rocks"--

What are asteroids, comets, and meteors made of? What can scientists do if an asteroid is headed toward Earth? Learn how astronomers prepare for space objects hitting Earth, from tracking them to building asteroid-hunting telescopes. Budding astronomers will learn all about meteors, asteroids, and comets, including the history of asteroids hitting Earth and the differences between space rocks.

An account that traces the origin and characteristics of meteorites and what they can tell us about outer space.

Bill Cassidy has led meteorite recovery expeditions in the Antarctic for many years. His searches have resulted in the collection of thousands of meteorite specimens from the ice. This fascinating story is a first-hand account of his field experiences on the US Antarctic Search for Meteorites Project, which he carried out as part of an international team of scientists. Cassidy describes this hugely successful field program in Antarctica and its influence on our understanding of the moon, Mars and the asteroid belt. In this 2003 book, he describes the hardships and dangers of fieldwork in a hostile environment, as well as the appreciation he developed for the beauty of the place. In the final chapters he speculates on the results of the trips and the future research they might lead to.

Introduces students to the mysteries surrounding UFOs, with first-hand accounts of alien encounters.

Gives the first a coherent and comprehensive account of how meteorites may have brought the seeds of life to Earth. Embedds specific results within a broader framework that considers the creation and evolution of the Early Earth. Provides experienced researchers with a modern and compact reference, as well as a source of material for lectures in this field.