by Matthew S. Tiscareno
Publisher: arXiv 2011
Number of pages: 82
Understanding of disks in general can be enhanced by understanding the dynamical processes observed at close-range and in real-time in planetary rings. We review the known ring systems of the four giant planets, as well as the prospects for ring systems yet to be discovered. We then review planetary rings by type.
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by Calvin J. Hamilton
This page presents a vivid adventure unfolding the splendor of the Sun, planets, moons, comets, asteroids, and more. Discover the latest scientific information, or study the history of space exploration, scientific facts, graphics and videos.
A trans-Neptunian object is any minor planet in the Solar System that orbits the Sun at a greater average distance (semi-major axis) than Neptune. The Kuiper belt, scattered disk, and Oort cloud are conventional divisions of this volume of space.
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.
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The technical triumph of manned landings on the Moon and the return of samples from the lunar surface has provided scientists with a unique opportunity to advance our understanding of the nature, evolution and origin of the solar system.