Results 231 to 240 of about 2,131,612 (313)
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Physical and Mechanical Characteristics of Lunar Soil at the Chang'E‐4 Landing Site
Geophysical Research Letters, 2020Chang'E‐4, with the Yutu‐2 rover, is the first lunar probe to successfully land and conduct a tour on the far side of the Moon from early 2019. We analyze the physical and mechanical characteristics of lunar soil through the in situ terrain data ...
Zhencheng Tang +15 more
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Journal of the Soil Mechanics and Foundations Division, 1973
The index properties of returned lunar soils from the United States Apollo and the Soviet Luna programs are reviewed. The scope of the paper includes lunar soil genesis, particle types, grain size distribution, grain shape distribution, specific gravity, minimum and maximum density, and relative density.
W. Carrier +2 more
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The index properties of returned lunar soils from the United States Apollo and the Soviet Luna programs are reviewed. The scope of the paper includes lunar soil genesis, particle types, grain size distribution, grain shape distribution, specific gravity, minimum and maximum density, and relative density.
W. Carrier +2 more
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Nature, 1967
PREVIOUS models of the lunar surface layer have necessarily been constructed on the basis of indirect evidence, such as the way in which the surface reflected sunlight and radar pulses, or the manner in which it cooled during an eclipse. The photometric properties, in particular, have been utilized in model construction, because they were considered to
JOHN W. SALISBURY, JOEL E. M. ADLER
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PREVIOUS models of the lunar surface layer have necessarily been constructed on the basis of indirect evidence, such as the way in which the surface reflected sunlight and radar pulses, or the manner in which it cooled during an eclipse. The photometric properties, in particular, have been utilized in model construction, because they were considered to
JOHN W. SALISBURY, JOEL E. M. ADLER
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Multielement Analysis of Lunar Soil and Rocks
Science, 1970Results for multielement analysis of lunar soil and of seven rocks returned by Apollo 11 are presented. Sixty-six elements were determined with spark source mass spectrography and neutron activation. U. S. Geological Survey standard W-1 was used as a comparative standard.
G H, Morrison +6 more
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The Remanent Magnetization of Lunar Soils
Science, 1972The magnetic material in the lunar soils makes them potentially strong carriers of remanence and magnetically viscous. The soils therefore block remanence in the temperature range of the lunar diurnal cycle. This remanence is stable against alternating-field demagnetization.
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Icarus, 1970
Abstract Because the lunar soil is darker than its parent rocks, it is often assumed that some process such as radiation darkening must have affected it. It is shown that the unusually high opaque mineral content of lunar rocks alone could account for the generally low albedo of the soil.
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Abstract Because the lunar soil is darker than its parent rocks, it is often assumed that some process such as radiation darkening must have affected it. It is shown that the unusually high opaque mineral content of lunar rocks alone could account for the generally low albedo of the soil.
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Search for strangelets in lunar soil
Journal of Physics G: Nuclear and Particle Physics, 2006The possible existence of strangelets has been hypothesized for a long time but has not been confirmed experimentally. Our experiment aims to search for strangelets in lunar soil samples, where the predicted concentration of one oxygen strangelet per 1016–1017 normal oxygen atoms is 104 times higher than that on earth.
Ke Han, the LSSS Collaboration
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Reviews of Geophysics, 1975
The moon is covered with a thin layer of unconsolidated debris called the lunar regolith. A typical sample of this regolith could be characterized as a gray, poorly sorted pebble‐ or cobble‐bearing silty sand having a bulk density of about 1.5 g/cm³. It consists of lithic and mineral fragments mostly from the local underlying bedrock and glass formed ...
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The moon is covered with a thin layer of unconsolidated debris called the lunar regolith. A typical sample of this regolith could be characterized as a gray, poorly sorted pebble‐ or cobble‐bearing silty sand having a bulk density of about 1.5 g/cm³. It consists of lithic and mineral fragments mostly from the local underlying bedrock and glass formed ...
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Lunar Soil Simulants- An Assessment
2019 9th International Conference on Recent Advances in Space Technologies (RAST), 2019In this study an assessment is done about lunar soil simulants. It is found that until now more than 40 simulants are produced in 9 countries. This procedure is a still ongoing one, after its start in the year 1990. The list of the simulants produced given in the paper is the most comprehensive one and it includes not only all of the types given in ...
Toklu, Yusuf Cengiz, Akpinar, Pinar
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Multivariate Comparison of Lunar Soil Simulants
Journal of Aerospace Engineering, 2019Since 1960, when the first probes landed on the Moon, multiple specimens of lunar soil have been available for research.
P. Zarzycki, J. Katzer
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