Results 31 to 40 of about 4,380 (115)

Coupled Space Weathering: Nanophase Iron Formation by Micrometeoroid Impact and Solar Wind Sputtering

Geophysical Research Letters
Understanding the interplay between micrometeoroid impacts and solar wind irradiation is crucial for interpreting lunar surface evolution. Using reactive molecular dynamics simulations and surface binding energy (SBE) analyses, this study investigates ...
Ziyu Huang, Masatoshi Hirabayashi
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Structure and Formation Mechanism of Lunar Regolith

Space: Science & Technology
Lunar regolith is a thin layer of weakly cohesive detrital materials covering the lunar surface. Studies on returned lunar samples have revealed that the lunar regolith mainly consists of fragments of rocks, minerals, breccia, glasses, and agglutinates ...
Liping Qin, Zongyu Yue, Sheng Gou, Yingnan Zhang, Guangfei Wei, Ke Shi, Xuhang Zhang, Bing Yang   +7 more
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Ethical and Social Aspects of a Return to the Moon—A Geological Perspective

Geosciences, 2018
The forward planning of the return of Humans to the lunar surface as envisioned by different national and collaborative space agencies requires consideration of the fragility and pristine nature of the lunar surface.
Vera Assis Fernandes
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Shock Metamorphism of Lunar Minerals

Space: Science & Technology
Impact events have played a crucial role in the formation and evolution of the Moon, as evidenced by the numerous of impact craters on its surface, indicating a long history spanning over 4 billion years characterized by numerous such occurrences. As the
Jianxi Zhu, Hongmei Yang, Shan Li, Xiaoju Lin, Haiyang Xian, Yiping Yang, Jiaxin Xi   +6 more
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Static Geotechnical Characterization of Lunar Soil Simulants

Aerospace
Recent technological advances and the reinvigoration of NASA’s Artemis program have increased the feasibility of lunar habitats and supporting infrastructure, necessitating the development of specialized foundation systems capable of maintaining ...
Devansh Joshi, Timothy Newson, Gordon R. Osinski   +2 more
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Multiband Spectropolarimetry of Lunar Maria, Pyroclastics, Fresh Craters, and Swirl Materials

The Astronomical Journal
Imaging polarimetry is a well-known method for examining the small-scale structure of the surface regolith of airless celestial bodies. In this study, we examine (for the first time) the wavelength-dependent polarization behavior of selected lunar areas,
Christian Wöhler, Mirza Arnaut, Megha Bhatt   +2 more
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Lunar ejecta as the missing piece to resolving lunar cratering asymmetry

Astronomy & Astrophysics
The leading-trailing asymmetry in lunar crater distribution provides a critical record of inner Solar System dynamics, yet the long-standing discrepancy between the observed higher asymmetry and lower theoretical predictions indicates a gap in our ...
Li Hailiang, Zhang Xiaoping, Zhou Li-Yong   +2 more
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Model for Determining the Origin of Lunar Volatiles Based on Their Composition: Application to NASA’s VIPER and Other Landed Missions

The Planetary Science Journal
Lunar volatiles provide a potentially pristine record of the history of the Earth–Moon system in terms of both geologic activity and delivery of volatiles from the outer solar system.
Kathleen Mandt, Casey I. Honniball, Doug Archer, Roberto Aguilar Ayala, Janine Captain, Barbara A. Cohen, Anthony Colaprete, Ariel N. Deutsch, Aleksandra J. Gawronska, Matthew Hancock, Jennifer Heldmann, Myriam Lemelin, Darlene Lim, Zara Mirmalek, Amy McAdam, Eldar Noe Dobrea, Parvathy Prem   +16 more
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The Population of Young Craters on the Moon: New Catalog and Spatial and Temporal Analysis

The Planetary Science Journal
We present a new catalog of the Moon’s rayed and rocky craters from 5 to 130 km in diameter. Using data from the Lunar Reconnaissance Orbiter and the JAXA Kaguya/Selene missions, we identify 571 unique craters with albedo, maturity, and/or thermophysical
Rebecca R. Ghent, Emily S. Costello, A. H. Parker   +2 more
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The South Pole‐Aitken Basin: Constraints on Impact Excavation, Melt, and Ejecta

Geophysical Research Letters
The formation and evolution of the South Pole‐Aitken (SPA) basin is critical to relating large impact basin formation and modification to lunar geophysical evolution.
R. I. Citron, D. E. Smith, S. T. Stewart, L. L. Hood, M. T. Zuber   +4 more
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