Results 11 to 20 of about 2,310,283 (266)

Lunar soil hydration constrained by exospheric water liberated by meteoroid impacts. [PDF]

Nat Geosci, 2019
Benna M, Hurley DM, Stubbs TJ, Mahaffy PR, Elphic RC.   +4 more
europepmc   +2 more sources

Space weathering on the lunar nearside and farside constrained from Si isotopes [PDF]

Nature Communications
Over long timescales, space weathering processes can modify the compositions of surface materials on the Moon. To assess the effects of space weathering of lunar soils, we study Si isotopes of Chang’E-5 (CE-5) and Chang’E-6 (CE-6) returned samples, and ...
Hui-Yan Zhang, Hui-Min Yu, Hao-Lan Tang, Yu-Chao Lin, Zicong Xiao, Lin Yang, Jin-Ting Kang, Ji Shen, Liping Qin, Fang Huang   +9 more
doaj   +2 more sources

Thermal Simulations of Drilling of Cryogenic Lunar Soils Containing Water Ice

Aerospace, 2023
Water ice is an important water source in lunar polar soil. Drilling and sampling lunar polar soil are important engineering tasks of lunar exploration. In view of the influence of temperature rise on the quality of samples obtained by drilling, the heat
Jinsheng Cui, Baoxian Chen, Sibo Liu, Deming Zhao, Weiwei Zhang   +4 more
doaj   +1 more source

Preparation Method of Lunar Soil Simulant and Experimental Verification of the Performance of an Impact Penetrator for Lunar Soil Exploration

Machines, 2022
The exploration and investigation of lunar soil can provide necessary information for human beings to understand the Moon’s geological evolution history and solar activity, and is also of great significance for human beings to search for new energy ...
He Li, Yuanbo Li, Minyu Wei, Yi Shen
doaj   +1 more source

Analysis of the Direct Shear Test and Microstructure of the Lunar Soil Simulant Solidified by Sodium Silicate

Advances in Materials Science and Engineering, 2022
The lunar soil is an ideal building material for future lunar base construction. In order to improve the strength of lunar soil, basalt with similar composition to lunar soil was used to simulate lunar soil due to lack of real lunar soil, and the ...
Qinyong Ma, Hanyan Wang
doaj   +1 more source

Research Status of Additive Manufacturing Lunar in-situ Forming Technology

Kuangchan zonghe liyong, 2023
This is an essay in the field of ceramics and composites. For decades, space exploration has been a hot topic. With the launch of Chang'e 5, China officially opened the first extraterrestrial celestial body sampling return journey.
Lingzhi Wu, Haiqing Yin, Cong Zhang, Ruijie Zhang, Yongwei Wang, Xue Jiang, Xuanhui Qu   +6 more
doaj   +1 more source

Detection of the Lunar Surface Soil Permittivity with Megahertz Electromagnetic Wave

Sensors, 2021
In this paper, the detection of the lunar surface soil permittivity with megahertz electromagnetic (EM) waves by spaceborne radar is studied based on the EM scattering theory, the Boltzmann–Shukla equations, and the improved scattering matrix method ...
Qingwen Rao, Guanjun Xu, Wangchen Mao
doaj   +1 more source

Comparison of laboratory and in situ reflectance spectra of Chang'e-5 lunar soil

Astronomy & Astrophysics, 2023
Context. Reflectance spectra provide essential information on the mineralogical composition of a planetary surface. However, the spectral characteristics of lunar soil are significantly influenced by its photometric properties, coupled with space ...
R. Chang, H. -. Lin, W. Yang, R. H. Ruan, X. Liu, H. Tian, J. Xu   +6 more
semanticscholar   +1 more source

Inversion of thermal properties of lunar soil from penetration heat of projectile using a 2D axisymmetric model and optimized PSO algorithm

Frontiers in Materials, 2022
The thermophysical parameters of lunar soil can be inferred from the temperature field during the invasion process of reconnaissance projectile. This paper adopts a two-dimensional axisymmetric model to reconstruct the projectile invasion process.
Fan Li, Fan Li, Honglang Li, Zixiao Lu, Junhao Cao, Weiwei Zhang, Junyue Tang, Yahui Tian, Cheng Chi, Shengyuan Jiang   +9 more
doaj   +1 more source

In Situ Investigation Of The Valence States Of Iron-Bearing Phases In Chang’E-5 Lunar Soil Using FIB, AES, And TEM-EELS Techniques

Atomic spectroscopy, 2022
: Nanophase iron (np-Fe 0 ) is a major product of space weathering and its presence significantly alters the reflectance spectral characteristics of lunar soil.
Yang Li
semanticscholar   +1 more source