By Paul J. Thomas, Roland D. Hicks, Christopher F. Chyba, Christopher P. McKay
This quantity considers the function comets can have performed within the origins and evolution of existence. this can be the single ebook dealing intensive with this topic. it's quite appropriate in mild of contemporary investigations of Halley's comet, of recent insights into natural synthesis in meteorites and comets, and of latest result of numerical simulations of cometary orbits and affects on the earth. The publication is meant as a accomplished assessment of present learn.