Astronomer Gerard P. Kuiper ignored the traditional boundaries of his subject. Using telescopes and the laboratory, he made the solar system a familiar, intriguing place. “It is not astronomy,” complained his colleagues, and they were right. Kuiper had created a new discipline we now call planetary science. Kuiper was an acclaimed astronomer of binary stars and white dwarfs when he accidentally discovered that Titan, the massive moon of Saturn, had an atmosphere. This turned our understanding of planetary atmospheres on its head, and it set Kuiper on a path of staggering discoveries: Pluto was not a planet, planets around other stars were common, some asteroids were primary while some were just fragments of bigger asteroids, some moons were primary and some were captured asteroids or comets, the atmosphere of Mars was carbon dioxide, and there were two new moons in the sky, one orbiting Uranus and one orbiting Neptune. He produced a monumental photographic atlas of the Moon at a time when men were landing on our nearest neighbor, and he played an important part in that effort. He also created some of the world’s major observatories in Hawai‘i and Chile. However, most remarkable was that the keys to his success sprang from his wartime activities, which led him to new techniques. This would change everything. Sears shows a brilliant but at times unpopular man who attracted as much dislike as acclaim. This in-depth history includes some of the twentieth century’s most intriguing scientists, from Harold Urey to Carl Sagan, who worked with—and sometimes against—the father of modern planetary science. Now, as NASA and other space agencies explore the solar system, they take with them many of the ideas and concepts first described by Gerard P. Kuiper.

"In this new view of the planets, images from NASA and other space agencies reveal how volcanoes, wind, asteroids, and flowing fluids have shaped the entire solar system - and tell us about the history and future of our Earth. Planetology pairs dramatic images of Earth's terrain with the latest, astonishing views of alien surfaces - examining landforms never before seen and highlighting, for the first time, the similarities between Earth and its sister planets." "Using the very best and latest NASA images - including those from the Cassini mission to Saturn and the fleet of spacecraft on and around Mars - Planetology examines the forces that shape the solar system, comparing mountains, craters, volcanoes, glaciers, and other landscapes across its myriad planets and moons."--BOOK JACKET.

The systematic study of the planets has experienced a slow but steady progress from the efforts of a single individual (Galileo Galilei, 1564-1642) to nations that individually and collectively create whole agencies and complex infrastructures devoted to the exploration and understanding of our solar system. This quest for knowledge continues in earnest today as we attempt to understand Earth's unique place among its closest neighbors. Known diversities emphasize fractionation processes that may have occurred in the nebula during early solar system formation, and the vastly different evolutionary paths taken by the planets and their satellites. The discovery of similarities and differences among the planets has given rise to a discipline of "Comparative Planetology. " Here terrestrial properties and giant planet atmospheres are viewed and probed, surface geologies are related to atmospheres and oceans, interior structures are envisioned, magnetic fields mapped, and bizarre differences in satellites and ring systems continue to enlighten, amaze and confound the detectives of planetary science. A science organizing committee with international participation was formed to develop a conference program to address the basic issues and the fundamental processes that are common among the planets. The goals of the meeting were twofold: first the production of a reference source on comparative planetology for academia, and second, the provision of an impetus for NASA to begin a program devoted to this emerging science discipline. The conference program accommodated seventeen invited papers and nineteen poster presentations.