Results 41 to 50 of about 14,704 (241)

Insights on the volcanic and impact histories of the lunar nearside from the petrology, geochemistry, and geochronology of the Calcalong Creek lunar regolith breccia meteorite

Meteoritics &Planetary Science, Volume 60, Issue 3, Page 392-421, March 2025.
Abstract The Calcalong Creek lunar meteorite is a regolith breccia with a lithologically diverse array of clasts set in a glassy, highly vesicular matrix. Here, we present a comprehensive new analysis of the meteorite. Comparisons to remote sensing data, lunar sample lithologies, and lunar sample ages indicate that it was likely sourced from regolith ...
B. H. Oliveira, J. F. Snape, R. Tartèse, J. F. Pernet‐Fisher, D. van Acken, M. J. Whitehouse, K. H. Joy   +6 more
wiley   +1 more source

Constraints on the depth and variability of the lunar regolith [PDF]

Meteoritics & Planetary Science, 2005
Knowledge of regolith depth structure is important for a variety of studies of the Moon and other bodies such as Mercury and asteroids. Lunar regolith depths have been estimated using morphological techniques (i.e., Quaide and Oberbeck 1968; Shoemaker and Morris 1969), crater counting techniques (Shoemaker et al.
B. B. Wilcox, B. R. Hawke, Mark S. Robinson, Peter C. Thomas   +3 more
openaire   +2 more sources

A primitive asteroid that lived fast and died young sampled by a xenolith in the Cold Bokkeveld CM2 carbonaceous chondrite

Meteoritics &Planetary Science, Volume 60, Issue 3, Page 464-483, March 2025.
Abstract Xenoliths in carbonaceous chondrites include lithologies that are unrepresented in the meteorite record and so are a rich source of information on asteroid diversity. Cold Bokkeveld is a CM2 regolith breccia that contains both hydrous and anhydrous lithic clasts. Here, we describe a hydrous clast with a fine‐grained rim.
Martin R. Lee, Cameron J. Floyd, Robin Haller, Sammy Griffin   +3 more
wiley   +1 more source

Triboelectric charging of lunar regolith simulant [PDF]

Journal of Geophysical Research: Space Physics, 2009
We present an experimental investigation of the triboelectric charging behavior of lunar simulant (JSC‐1). Our experimental approach ensures that the JSC‐1 particles only make contact to other JSC‐1 particles during the charging process (and no other surfaces).
Daniel J. Lacks, Keith M. Forward, R. Mohan Sankaran   +2 more
openaire   +2 more sources

Thermophysical property models for lunar regolith [PDF]

Advances in Space Research, 2016
Abstract We present a set of thermophysical property models for lunar regolith. Data from over 25 sources in the literature are integrated and fit with regression models for the following properties: composition, density, specific heat, latent heat of melting/fusion, thermal conductivity, electrical conductivity, optical absorption length, Gibbs Free
Jeffrey A. Hoffman, Laurent Sibille, Jesus A. Dominguez, S. Schreiner   +3 more
openaire   +2 more sources

Selective sampling of asteroids, the Moon, and Mars: Factors affecting the numerical abundances of members of meteorite groups

Meteoritics &Planetary Science, EarlyView.
Abstract Meteorite collection inventories show that many related meteorite groups have very different numerical abundances (e.g., lunar versus Martian meteorites; Eagle Station pallasites versus main‐group pallasites; eucrites versus diogenites; ungrouped Antarctic irons versus ungrouped non‐Antarctic irons; carbonaceous chondrite‐related (CC) iron ...
Alan E. Rubin
wiley   +1 more source

Experimental simulations of space weathering on pentlandite

Meteoritics &Planetary Science, EarlyView.
Abstract Pentlandite (Fe, Ni)9S8 is an important accessory mineral on asteroidal surfaces. It has been identified in returned regolith samples from asteroids Itokawa, Ryugu, and Bennu. Currently, systematic studies to understand the response of this mineral phase under space weathering conditions are lacking.
L. C. Chaves, M. S. Thompson, C. A. Dukes, M. J. Loeffler, M. F. Martinez‐Motta, H. Vannier, B. H. N. Horgan, N. Smith, K. Ardrey   +8 more
wiley   +1 more source

The first cosmic ray albedo proton map of the Moon [PDF]

, 2012
[1] Neutrons emitted from the Moon are produced by the impact of galactic cosmic rays (GCRs) within the regolith. GCRs are high-energy particles capable of smashing atomic nuclei in the lunar regolith and producing a shower of energetic protons, neutrons
Blake, J. B., Case, A. W., Golightly, Michael, Kasper, Justin, Looper, M. D., Mazur, J. E., Schwadron, Nathan A., Spence, Harlan E., Townsend, L. W., Wilson, Jody K., Zeitlin, C.   +10 more
core   +2 more sources

Lunar Regolith Temperature Variation in the Rümker Region Based on the Real-Time Illumination

Remote Sensing, 2020
Chang’E-5 will be China’s first sample−return mission. The proposed landing site is at the late-Eratosthenian-aged Rümker region of the lunar nearside.
Zhen Zhong, Jianguo Yan, Zhiyong Xiao
doaj   +1 more source

Solar 3D printing of lunar regolith

Acta Astronautica, 2018
Abstract The authors demonstrated the feasibility of sintering lunar regolith layer-by-layer solely using concentrated sunlight. First trials using actual concentrated sunlight led to an inhomogeneous sintering of individual layers of lunar regolith simulant, due to the significant flux density variations caused by atmospheric fluctuations.
A. Meurisse, A. Makaya, C. Willsch, M. Sperl   +3 more
openaire   +2 more sources