Results 251 to 260 of about 6,852,218 (267)

The surface of asteroid 951 Gaspra

Earth, Moon, and Planets, 1996
I present new maps, photomosaics and geological interpretations of asteroid 951 Gaspra. Facets and limb concavities suggest a long history of large impacts producing 5 to 7 km diameter craters. Craters 1 to 4 km in diameter date the last facet-forming impact, though it is not clear which facet this formed.
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Asteroid Surface Weathering Inspired Optimization

This paper proposes a heuristic optimization algorithm based on asteroid surface weathering processes, named ASWO-I (Asteroid Surface Weathering Inspired Optimization). The algorithm simulates the physical and chemical changes on an asteroid's surface caused by solar wind bombardment, micrometeorite impacts, and spectral degradation, mapping these ...
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Surface Lithologic Heterogeneity of Asteroid 4 Vesta

Icarus, 1997
Abstract High precision spectrophotometry of 4 Vesta, the third largest asteroid, was used to establish the surface composition of this body and to investigate mineralogical variations across its surface. The average surface of Vesta is analogous to howardite and/or polymict eucrite assemblages, regolith-derived members of the HED meteorite suite ...
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Crater population on asteroid (101955) Bennu indicates impact armouring and a young surface

Nature Geoscience, 2022
E. Bierhaus, D. Trang, R. Daly, C. Bennett, O. Barnouin, K. Walsh, R. Ballouz, W. Bottke, K. Burke, M. Perry, E. Jawin, T. Mccoy, H. Connolly, M. Daly, J. Dworkin, D. DellaGiustina, P. Gay, J. Brodbeck, J. Nolau, J. Padilla, S. Stewart, S. Schwartz, P. Michel, M. Pajola, D. Lauretta   +24 more
semanticscholar   +1 more source

Low surface strength of the asteroid Bennu inferred from impact ejecta deposit

Nature Geoscience, 2022
M. Perry, O. Barnouin, R. Daly, E. Bierhaus, R. Ballouz, K. Walsh, M. Daly, D. DellaGiustina, M. Nolan, J. Emery, M. A. Al Asad, C. Johnson, C. Ernst, E. Jawin, P. Michel, D. Golish, W. Bottke, J. Seabrook, D. Lauretta   +18 more
semanticscholar   +1 more source

Solar wind as the origin of rapid reddening of asteroid surfaces

Nature, 2009
P. Vernazza, R. Binzel, Alessandro Rossi, M. Fulchignoni, M. Birlan   +4 more
semanticscholar   +1 more source

Asteroidal Surface Bright Spots Optimization Algorithm

Bright spots on asteroid surfaces are localized areas of high reflectivity, formed by mechanisms including impact exposure, mineral precipitation, and space weathering. This study proposes a novel heuristic optimization algorithm (ASBS-OA) based on the physical properties of asteroid bright spots.
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Albedo and color contrasts on asteroid surfaces

, 1979
J. Degewij, E. Tedesco, B. Zellner
semanticscholar   +1 more source

Modeling asteroid surfaces from observations and irradiation experiments: The case of 832 Karin

, 2006
R. Brunetto, P. Vernazza, S. Marchi, M. Birlan, M. Fulchignoni, V. Orofino, G. Strazzulla   +6 more
semanticscholar   +1 more source

Surface Properties Of Asteroids

Science Trends, 2018
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