Results 251 to 260 of about 123,664 (306)

Robotic Planetary Surface Exploration

IFAC Proceedings Volumes, 1998
Abstract This is a brief text of speech given by the author as the opening plenary talk at the 3rd IFAC Symposium on Intelligent Autonomous Vehicles. Mter a brief introduction about JPL's past, present, and future missions, it presents Sojourner rover and its accomplishments as well as JPL's research on Long Range Science Rovers. References 1, 2, and
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Reconfigurability in planetary surface vehicles

Acta Astronautica, 2009
Abstract Traditionally, space systems have been built for fixed requirements and optimized for highest performance. Future systems for human exploration of Moon and Mars, however, require focus on new architectural strategies geared towards increased affordability and survivability in addition to performance.
Afreen Siddiqi, Olivier L. de Weck
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Humanoids for lunar and planetary surface operations

5th IEEE-RAS International Conference on Humanoid Robots, 2005., 2006
This paper presents a vision of humanoid robots as human's key partners in future space exploration, in particular for construction, maintenance/repair and operation of lunar/planetary habitats, bases and settlements. It integrates this vision with the recent plans for human and robotic exploration, aligning a set of milestones for operational ...
A. Stoica, D. Keymeulen, A. Csaszar, null Quan Gan, T. Hidalgo, J. Moore, J. Newton, S. Sandoval, null Jiajing Xu   +8 more
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Planetary Core and Surface Temperatures

SSRN Electronic Journal, 2013
The paper explains why the physics involved in atmospheric and sub-surface heat transfer appears to have been misunderstood, and incorrectly applied, when postulating that a radiative “greenhouse effect” is responsible for warming the surfaces of planets such as Venus and our own Earth.A detailed discussion of the application of the Second Law of ...
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Photopolarimetric sensing of planetary surfaces

Advances in Space Research, 1985
Abstract Polarization measurements over the surfaces of the Moon, Mercury, Mars and Saturn's rings, and global data for the Galilean satellites, have been recorded with telescopes in France. A number of asteroids were measured by B. Zellner in USA. The curves of polarization are diagnostic of the micro-texture of the surface, and demonstrate that all
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Mapping of planetary surfaces by radar

Proceedings of the IEEE, 1973
A review is presented of the several methods which are available for the mapping of both reflectivity and topography of planetary surfaces by ground-based radar. Emphasis is placed on observational methods rather than interpretation of results. The various observational schemes are illustrated by recent observational results.
T. Hagfors, D.B. Campbell
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Mobility on Planetary Surfaces

2012
Exploration vehicles, either manned or automatic, can use a variety of means of locomotion to achieve their goal. A first distinction must be made between ground vehicles, i.e. vehicles supported by a solid surface, atmospheric or sea vehicles, i.e.
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Aeolian Modification of Planetary Surfaces

1982
Any planet or satellite having a dynamic atmosphere and a solid surface has the potential for aeolian processes. Survey of the Solar System shows that wind plays an important, and in some regions, the key role in surface modiflcations. Most deserts and many coastal oreas on Earth are subject to aeolian processes, Seasonal dust storms sweep the surface ...
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Electrical properties of planetary surfaces

Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1977
The electrical properties of the lunar surface are those of very good dielectric insulators. The results of the Apollo programme and laboratory studies on lunar samples have confirmed the predictions of Earth-based and spacecraft measurements of the dielectric properties of the lunar surface, and helped to increase the reliability of such studies of ...
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Planetary Surfaces

2020
Colette Salyk, Kevin Lewis
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