Results 31 to 40 of about 105,146 (299)

Evaluation of geophysical properties of the lunar regolith for the design of precursor scientific missions for the space exploration initiative [PDF]

, 1990
The following topics are addressed: (1) the frequency of encountering boulders that represent hazards to lunar operations; (2) the ease of lunar soil excavation; (3) the use of explosives in excavation operation; (4) the trafficability of the regolith ...
Paul Morgan
openalex   +2 more sources

Investigation of severe lunar environmental conditions on the physical and mechanical properties of lunar regolith geopolymers

, 2021
Shima Pilehvar, Marlies Arnhof, Andreas Erichsen, Luca Valentini, Anna‐Lena Kjøniksen   +4 more
openalex   +2 more sources

Shallow Regolith Structure and Obstructions Detected by Lunar Regolith Penetrating Radar at Chang'E-5 Drilling Site

Remote Sensing, 2022
This work analyzes the observations from the Lunar Regolith Penetrating Radar (LRPR) onboard Chang’E-5 to reconstruct the subsurface structure of the regolith under the lander at the drilling site.
Jianqing Feng, M. Siegler, M. White
semanticscholar   +1 more source

Optimal Radio Window for the Detection of Ultra-High-Energy Cosmic Rays and Neutrinos off the Moon [PDF]

, 2005
When high-energy cosmic rays impinge on a dense dielectric medium, radio waves are produced through the Askaryan effect. We show that at wavelengths comparable to the length of the shower produced by an Ultra-High Energy cosmic ray or neutrino, radio ...
A.G. de Bruyn, Abbasi, Achterberg, Alvarez-Muñiz, Alvarez-Muñiz, Askaryan, Askaryan, B. Stappers, Baars, Bahcall, Barwick, Bhattacharjee, Bhattacharjee, Bregman, Buniy, Butcher, Chiba, Dagkesamanskii, Deligny, Engel, Falcke, Falcke, Gandhi, Gerasimova, Gorham, Gorham, Gorham, Greisen, H. Falcke, Hankins, Heiken, Huege, J. Bacelar, Korotev, Kravchenko, Lehtinen, Medina-Tanco, O. Scholten, Olhoeft, Protheroe, R. Braun, R.G. Strom, Saltzberg, Saltzberg, Sarkar, Suprun, Takahashi, Takeda, Tamm, Ulrich, Yoshida, Zas, Zatsepin, Zatsepin   +53 more
core   +10 more sources

Deep dielectric charging of regolith within the Moon\u27s permanently shadowed regions [PDF]

, 2014
Energetic charged particles, such as galactic cosmic rays (GCRs) and solar energetic particles (SEPs), can penetrate deep within the lunar surface, resulting in deep dielectric charging.
Jordan, Andrew P., Joyce, Colin J., Schwadron, Nathan A., Spence, Harlan E., Stubbs, T. J., Wilson, Jody K.   +5 more
core   +2 more sources

Numerical Simulations of the Lunar Penetrating Radar and Investigations of the Geological Structures of the Lunar Regolith Layer at the Chang’E 3 Landing Site

International Journal of Antennas and Propagation, 2017
In the process of lunar exploration, and specifically when studying lunar surface structure and thickness, the established lunar regolith model is usually a uniform and ideal structural model, which is not well-suited to describe the real structure of ...
Chunyu Ding, Yan Su, Shuguo Xing, Shun Dai, Yuan Xiao, Jianqing Feng, Danqing Liu, Chunlai Li   +7 more
doaj   +1 more source

Performance of hydrogen-rich materials in combination with lunar regolith for shielding against GCR, albedo, and SPEs on the surface of the moon studied using MULASSIS [PDF]

AIP Advances
The moon is the most likely location for future human habitation. The radiation exposure from the combination of galactic cosmic rays, solar particle events, and albedo radiation on the Moon’s surface is one of the major obstacles to permanent settlement
Lasany Arfin Kunja, Yu Yi, Eojin Kim, Jongdae Sohn, Jongil Jung   +4 more
doaj   +1 more source

Bulk Density of the Lunar Regolith at the Chang'E‐3 Landing Site as Estimated From Lunar Penetrating Radar

Earth and Space Science, 2020
Bulk density of the lunar regolith is a key factor affecting its geophysical and geotechnical properties. In this study, a new method for estimating the bulk density of the lunar regolith is developed based on the geometric characteristic (i.e ...
Wenzhe Fa
doaj   +1 more source

In-Situ Radar Observation of Shallow Lunar Regolith at the Chang’E-5 Landing Site: Research Progress and Perspectives

Remote Sensing, 2023
China accomplished a historic milestone in 2020 when the mission Chang’e-5 (CE-5) to the Lunar’s surface was successfully launched. An extraordinary component of this mission is the “Lunar Regolith Penetrating Radar” (LRPR) housed within its lander ...
Feiyang Fang, Chunyu Ding, Jianqing Feng, Yan Su, Ravi Sharma, Iraklis Giannakis   +5 more
doaj   +1 more source

Deducing Lunar Regolith Porosity From Energetic Neutral Atom Emission

Geophysical Research Letters, 2022
The porosity of the upper layers of regolith is key to the interaction of an airless planetary body with precipitating radiation, but it remains difficult to characterize.
P. Szabo, A. Poppe, H. Biber, A. Mutzke, J. Pichler, N. Jäggi, A. Galli, P. Wurz, F. Aumayr   +8 more
semanticscholar   +1 more source