front cover of Asteroids
Asteroids
Tom Gehrels
University of Arizona Press, 1979
This is a comprehensive source and textbook on asteroids by 70 authors covering exploration, composition, evolution, and the interrelations with other small solar system bodies. Also includes an extensive file of all known asteroid parameters including magnitudes, colors, proper elements and compositional types.
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front cover of Asteroids II
Asteroids II
Richard P. Binzel
University of Arizona Press, 1989
"Asteroids II will have some bearing on meteorite research, and will help to clarify our understanding of the many specimens held in both private and public collections throughout the world. I commend the book without reservation."—J.P. Lavielle Impact

"This monograph will become indispensable for everybody engaged in the rapidly expanding asteroid research or interested in its current state."—Space Science Reviews

"This is an excellent introduction to the subject, recommended for schools with astronomy programs."—Academic Library Review

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front cover of Hazards Due to Comets and Asteroids
Hazards Due to Comets and Asteroids
Edited by T. Gehrels
University of Arizona Press, 1995
In 1993, the U.S. Department of Defense declassified information dealing with frequent explosions in the upper atmosphere caused by meteoric impact. It is estimated that impacts have occurred of a magnitude equivalent to the atomic bomb detonated at Hiroshima. Not all such space voyagers meet their end in the atmosphere, however; huge craters attest to the bombardment of earth over millions of years, and a major impact may have resulted in the extinction of dinosaurs. An impact in Siberia near the beginning of this century proves that such events are not confined to geologic time. Hazards Due to Comets and Asteroids marks a significant step in the attempt to come to grips with the threats posed by such phenomena. It brings together more than one hundred scientists from around the world, who draw on observational and theoretical research to focus on the technical problems related to all aspects of dealing with these hazards: searching for and identifying hazardous comets and asteroids; describing their statistics and characteristics; intercepting and altering the orbits of dangerous objects; and applying existent technologies—rocket boosters, rendezvous and soft-landing techniques, instrumentation—to such missions. The book considers defensive options for diverting or disrupting an approaching body, including solar sails, kinetic-energy impacts, nuclear explosives, robotic mass drivers, and various propulsion systems. A cataclysmic impact posing a threat to life on Earth is a possibility that tomorrow's technology is capable of averting. This book examines in depth the reality of the threat and proposes practical measures that can be initiated now should we ever need to deal with it.
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front cover of Jupiter
Jupiter
Tom Gehrels
University of Arizona Press, 1976

front cover of Planets, Stars and Nebulae Studied with Photopolarimetry
Planets, Stars and Nebulae Studied with Photopolarimetry
Edited by T. Gehrels
University of Arizona Press, 1974
“The polarization study of celestial objects is a valuable part of optical astronomy, and the author has done exceptionally well in bringing together contributions treating all aspects of the polarimetry field. . . . The first section contains a fine introduction and an excellent and definitive history of the subject. . . . The volume is well illustrated. . . . Highly recommended.”—Choice

“The high quality of this book is clearly due to strict editorial attention to each paper and the discussions. Gehrels’s book will surely stand for many years as the fundamental reference source for polarization studies in astronomy as well as in atmospheric physics.”—Journal of the Association of Lunar and Planetary Observers
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front cover of Protostars and Planets
Protostars and Planets
Tom Gehrels
University of Arizona Press, 1979
Unique source book on star formation and the origin of planetary systems from some 35 distinguished authors. Topics include the formation of stars from the cloudy to the stellar to the planetary state. Special emphasis on stars believed capable of producing planets.
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front cover of Saturn
Saturn
Tom Gehrels
University of Arizona Press, 1984


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