Protoplanetary Disks and Their Evolution
by Jonathan P. Williams, Lucas A. Cieza
Publisher: arXiv 2011
Number of pages: 65
Flattened, rotating disks of cool dust and gas extending for tens to hundreds of AU are found around almost all low mass stars shortly after their birth. This review addresses observations of the outer parts, beyond 1 AU, of protoplanetary disks with a focus on recent infrared and (sub-)millimeter results and an eye to the promise of new facilities in the immediate future.
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by Thomas P. Hansen - NASA
The 1964 Lunar Orbiter program consisted of the investigation of the Moon by five unmanned spacecraft. Its objective was to obtain detailed photographs of the Moon. This document presents information on the location and coverage of all photographs.
by Raymond M. Batson - NASA
Published in 1984 after several years of photographic analysis, this book presents maps of the six Saturnian moons which were investigated by the Voyager 1 and 2 spacecraft during their flyby missions of Saturn in 1980 and 1981, respectively.
The Solar System comprises the Sun and its planetary system, as well as a number of dwarf planets, satellites, and other objects that orbit the Sun. It formed 4.6 billion years ago from the gravitational collapse of a giant molecular cloud.
by W. K. Hartmann, R. J. Phillips, G. J. Taylor - Lunar and Planetary Institute
Contents: History; Dynamical Constraints; Geochemical Constraints; Geophysical Constraints; Theories and Processes of Origin: Lunar Formation Involving Capture or Fission; Lunar Formation Triggered by Large Impact; and more.