Results 51 to 60 of about 130,537 (229)

Mineralogical Characteristics of the Lorentz and Coulomb-Sarton Basins Reveal Early Magmatic Activity on the Lunar Farside

open access: yesThe Astrophysical Journal
Mg# (molar Mg/(Mg+Fe)) is a critical geochemical indicator for quantifying the evolution of the lunar crust, providing essential insights into regional compositional variability, crustal differentiation processes, and the crystallization history of the ...
Jiaqi Kong   +5 more
doaj   +1 more source

Mineralogy and petrology of the Apollo 12 lunar sample [PDF]

open access: yes, 1971
Mineralogy and petrology of Apollo 12 lunar ...
Powell, B. N.   +6 more
core  

Fifty Years Later: Revisiting Viking 2 Seismic Signals Through InSight

open access: yesAGU Advances, Volume 7, Issue 7, October 2026.
Abstract For nearly 50 years, the origin of the candidate seismic signals recorded by Viking 2 remained unresolved because of limited instrumental sensitivity, onboard observation, data compression, and the absence of Martian seismic context. Here we reconstruct the Viking seismic workflow and reinterpret the two Viking candidate events, recorded on ...
Wanbo Xiao   +3 more
wiley   +1 more source

Lunar “Volatile and Mineralogy Mapping Orbiter (VMMO)” Mission [PDF]

open access: yes, 2019
Human spaceflight to/on/from the Moon will benefit from exploitation of various in-situ resources such as water volatile and mineral. Evidence for water ice in Permanently Shadowed Regions (PSRs) on the Moon is both direct and indirect, and derives from ...
Gao, Yang   +13 more
core   +1 more source

Cross‐Referencing Astronaut‐Observed Lunar Impact Flashes With Seismic Data—Lessons From Apollo for Artemis

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 10, October 2026.
Abstract During their orbits of the Moon in 1972, Apollo astronauts reported three impact flashes, associated with meteoroids striking the surface and vaporizing. We examined data from the Apollo seismic network to investigate whether these flashes produced detectable moonquakes whose locations and timing could be independently validated.
B. Fernando   +7 more
wiley   +1 more source

Hour-scale Variations of Water Molecules in the Lunar Soil Revealed by Chang’e-6 In Situ Observations

open access: yesThe Astrophysical Journal Letters
The speciation, inventory, and dynamic changes of water (OH/H _2 O) on the lunar surface remain poorly constrained. The Chang’e-6 (CE-6) mission conducted in situ spectroscopic measurements of lunar water over time intervals shorter than one lunar local ...
Siyue Chi   +9 more
doaj   +1 more source

Determination of the Dynamic Angle of Repose of Lunar Regolith Simulants

open access: yesGeosciences
The determination of the dynamic angle of repose (DAR) of lunar regolith simulants is essential for modeling material behavior during in situ resource utilization (ISRU) processes and lunar surface operations.
Mateusz Pawłowski   +3 more
doaj   +1 more source

SPECTRAL UNMIXING BASED CONSTRUCTION OF LUNAR MINERAL ABUNDANCE MAPS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
In this study we apply a nonlinear spectral unmixing algorithm to a nearly global lunar spectral reflectance mosaic derived from hyper-spectral image data acquired by the Moon Mineralogy Mapper (M3) instrument.
V. Bernhardt, A. Grumpe, C. Wöhler
doaj   +1 more source

Mineralogy and petrology of the Apollo 11 lunar sample [PDF]

open access: yes, 1970
Mineralogy and petrology of Apollo 11 lunar ...
Powell, B. N.   +3 more
core  

Mineralogy [PDF]

open access: yes, 2020
Mineralogy - Significance and Applications includes new contributions to the field of mineralogy in terms of mineral chemistry and petrogenesis using updated facilities from regions in Asia and Europe to interpret petrologic significance.

core   +1 more source

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