Download PDF by National Research Council Staff: A Scientific Rationale for Mobility in Planetary

By National Research Council Staff

ISBN-10: 0309064376

ISBN-13: 9780309064378

ISBN-10: 0585068585

ISBN-13: 9780585068589

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Additional info for A Scientific Rationale for Mobility in Planetary Environments (Compass Series)

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Through this link, a more fundamental understanding of the geology, stratigraphy, and internal structure of Vesta’s preserved ancient planetary surface will be achieved. The observations identified above require mobility, either for sampling of multiple surface and subsurface units on a heterogeneous asteroid such as Vesta, or for positioning geophysical instruments that must work in tandem. Horizontal mobility also could provide vertical mobility by sampling blocks excavated by impact craters.

The smaller vehicles in this class might not, in general, be capable of travel far from their landing sites. , Mars Pathfinder’s Sojourner) may require their lander to act as a telecommunications relay. Clearly, direct communication is the preferred option. 2) and Russia’s Marsokhod fall at, respectively, the lower and upper ends of this size category. The Athena rover, originally scheduled to be carried to Mars in 2001 and now deferred until 2003, is of intermediate size, and is designed to have a lifetime of a year.

Imaging of asteroids during spacecraft flybys and studies of meteorites derived from asteroidal bodies reveal that asteroids have experienced both internal and external modifications to varying degrees. This includes thermal metamorphism, aqueous alteration, melting, core Copyright © National Academy of Sciences. All rights reserved. html THE ROLE OF MOBILITY IN SOLAR SYSTEM EXPLORATION 19 formation, impact cratering with attendant shock effects, regolith formation, and space weathering. The internal structure and composition, geophysical attributes, and surface geology of such bodies remain largely unknown.

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A Scientific Rationale for Mobility in Planetary Environments (Compass Series) by National Research Council Staff


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