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2000
During the latter half of the 1980's three concepts for low frequency arrays on the Moon were independently studied for NASA, leading to two workshops in 1990. The main technical challenges were those of deploying the array on the Moon, and of correlating the data on the Moon or returning all the raw data to Earth.
T. B. H. Kuiper, D. Jones
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During the latter half of the 1980's three concepts for low frequency arrays on the Moon were independently studied for NASA, leading to two workshops in 1990. The main technical challenges were those of deploying the array on the Moon, and of correlating the data on the Moon or returning all the raw data to Earth.
T. B. H. Kuiper, D. Jones
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Surface Properties of Lunar Samples
Science, 1970Fine-grained samples disrupted after exposure to oxygen and oxygen with 3.5 percent water above 2 torr. Chemical etching revealed plastic deformation in some samples, adhesion due to impact melting in others, dislocations in crystalline phases and evidence that some glasses were partially devitrified.
J J, Grossman +3 more
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Radioactivity of the Lunar Surface
Science, 1966Diffusion of radon and thoron from the lunar surface provides a mechanism for production of a radioactive surface layer on the moon. If the radon and thoron flux from the lunar surface is equal to that measured at the earth's surface, the equilibrium activity of this surface layer is estimated as approximately 1 microcurie per square meter, due to ...
H W, Kraner +3 more
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2010
The Moon is the most remarkable object in the nighttime sky. It is, of course, much smaller and less impressive in absolute dimensions than planets such as Mars and Jupiter and is hardly worthy of mentioning in the same sentence as a galaxy. But the Moon is more visibly interesting to a person on Earth with eyes, binoculars, or telescope than any other
Motomaro Shirao, Charles A. Wood
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The Moon is the most remarkable object in the nighttime sky. It is, of course, much smaller and less impressive in absolute dimensions than planets such as Mars and Jupiter and is hardly worthy of mentioning in the same sentence as a galaxy. But the Moon is more visibly interesting to a person on Earth with eyes, binoculars, or telescope than any other
Motomaro Shirao, Charles A. Wood
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Icarus, 1967
Abstract Lower bounds for the strength of the lunar surface have been derived from the properties necessary to provide stability of the slopes observed in Ranger 7, 8, and 9 imagery. Additional information was obtained from Luna 9 data, from hydrostatic considerations, and from laboratory tests.
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Abstract Lower bounds for the strength of the lunar surface have been derived from the properties necessary to provide stability of the slopes observed in Ranger 7, 8, and 9 imagery. Additional information was obtained from Luna 9 data, from hydrostatic considerations, and from laboratory tests.
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SAE Technical Paper Series, 1963
<div class="htmlview paragraph">Direct and indirect evidence for the nature of lunar surface materials are examined and compared with theoretical predictions. Conclusions are then drawn concerning the most probable character of these materials. It is concluded that the lunar surface is covered with a layer of rubble of highly variable thickness ...
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<div class="htmlview paragraph">Direct and indirect evidence for the nature of lunar surface materials are examined and compared with theoretical predictions. Conclusions are then drawn concerning the most probable character of these materials. It is concluded that the lunar surface is covered with a layer of rubble of highly variable thickness ...
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Reviews of Geophysics, 1974
Seismic refraction data obtained at the Apollo 14, 16, and 17 landing sites permit a compressional wave velocity profile of the lunar near surface to be derived. Although the regolith is locally variable in thickness, it possesses surprisingly similar seismic characteristics.
Michael R. Cooper +2 more
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Seismic refraction data obtained at the Apollo 14, 16, and 17 landing sites permit a compressional wave velocity profile of the lunar near surface to be derived. Although the regolith is locally variable in thickness, it possesses surprisingly similar seismic characteristics.
Michael R. Cooper +2 more
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1964
Direct and indirect evidence for the nature of lunar surface materials is examined and compared with theoretical predictions. Conclusions are then drawn concerning the most probable character of these materials. It is concluded that the lunar surface is covered with a layer of rubble of highly variable thickness and block size.
John W. Salisbury, Vern G. Smalley
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Direct and indirect evidence for the nature of lunar surface materials is examined and compared with theoretical predictions. Conclusions are then drawn concerning the most probable character of these materials. It is concluded that the lunar surface is covered with a layer of rubble of highly variable thickness and block size.
John W. Salisbury, Vern G. Smalley
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American Journal of Physics, 1965
ABSTRACT Direct and indirect evidence for the nature of lunar surface materials is examined and compared with theoretical predictions. Conclusions are then drawn concerning the most probable character of these materials. It is concluded that the lunar surface is covered with a layer of rubble of highly variable thickness and block size. The rubble in
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ABSTRACT Direct and indirect evidence for the nature of lunar surface materials is examined and compared with theoretical predictions. Conclusions are then drawn concerning the most probable character of these materials. It is concluded that the lunar surface is covered with a layer of rubble of highly variable thickness and block size. The rubble in
openaire +1 more source