Explains the physics of gravity and gravitational pull, offering information on the contributions made in this area by Copernicus, Galileo, and Newton.

INSTANT NEW YORK TIMES BESTSELLER “Most appealing... technical accuracy and lightness of tone... Impeccable.”—Wall Street Journal “A porthole into anoth

A new look at the first few seconds after the Big Bang—and how research into these moments continues to revolutionize our understanding of our universe Scient

An introduction to the laws of celestial mechanics and a step-by-step guide to developing software for direct use in astrophysics research. This book offers bot

The Moving Universe is designed for the student of astrology, and is the only book on transits that deals with both the mundane and spiritual interpretations. I