Results 131 to 140 of about 22,302 (295)

Mineralogy, mineral chemistry, and redox equilibria in ten aggregate particles from asteroid Bennu

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Examination of 10 Bennu aggregate particles has revealed the presence of many phases which taken together can provide constraints on the oxygen fugacity (fO2) of Bennu samples. Phyllosilicates (saponite and serpentine), carbonates, oxides (magnetite, chromite), sulfides (pyrrhotite, pentlandite), phosphate (hydroxyapatite, Na‐Mg‐phosphate ...
K. Righter   +11 more
wiley   +1 more source

Lunar surface experiments

open access: yes, 1964
A survey of measurements, experiments and geologic studies that might be made on the lunar surface was conducted to provide the National Aeronautics and Space Administration and the scientific community with data to aid in final selection of the optimum ...
Texas Instruments Incorporated
core  

Geology of the central uplift of the Kamestastin Lake impact structure, Labrador, Canada

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The ~28 km Kamestastin (Mistastin) Lake impact structure is a relatively well‐preserved and well‐exposed complex impact structure. The central uplift of this structure is accessible as two islands in the middle of Kamestastin Lake. We present an updated, detailed geological map and description of Horseshoe and Bullseye islands that provides ...
A. C. Singleton, G. R. Osinski
wiley   +1 more source

Apollo Lunar Surface Experiments Package systems handbook : Apollo 16, ALSEP 3, Array D

open access: yes, 1972
Information contained within this document represents the Apollo Lunar Surface Experiments Package (ALSEP) systems for ALSEP 3 (ARRAY D) as of January 12, 1972.

core  

Initial measurements of the lunar induced magnetic dipole moment using Lunar Prospector Magnetometer data

open access: yes, 1999
Twenty-one orbits of Lunar Prospector magnetometer data obtained during an extended passage of the Moon through a lobe of the geomagnetic tail in April 1998 are applied to estimate the residual lunar induced magnetic dipole moment.
Mitchell, David L.   +4 more
core   +1 more source

A Pathfinder Lunar Construction Mission Concept Using Regolith Filled Bags

open access: yesAerospace
Two challenges that have a permanent presence on the Moon are solar and cosmic radiation, as well as the large surface temperature variation between lunar day and night.
Cameron S. Dickinson   +11 more
doaj   +1 more source

Nanoscale space weathering features in mature lunar soil revealed by TEM and APT

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Space weathering significantly alters the optical, chemical, and structural properties of lunar regolith at micro‐ and nanoscales; yet detailed nanoscale variability within individual soils remains underexplored. Here we apply transmission electron microscopy (TEM) and atom probe tomography to four mineral grains (olivine, ilmenite, and two ...
Jennika Greer   +6 more
wiley   +1 more source

Workshop on Lunar Volcanic Glasses [PDF]

open access: yes, 1990
Lunar volcanic glasses, of which 25 compositional varieties are presently known, appear to represent primary magmas that were produced by partial melting of differentiated mantle source regions at depths of perhaps 400 to 500 km.

core  

Modeling the Effects of Anthropogenic Activities on the Lunar Environment with a Systems-theoretic Approach

open access: yesThe Planetary Science Journal
An increasing number of missions to the Moon are planned for the future. However, their long-term, cumulative impacts on the lunar environment are unknown. Research indicates that some important scientific discovery potential may be permanently lost, and
Afreen Siddiqi   +4 more
doaj   +1 more source

High-Precision Disparity Estimation for Lunar Scene Using Optimized Census Transform and Superpixel Refinement

open access: yesRemote Sensing
High-precision lunar scene 3D data are essential for lunar exploration and the construction of scientific research stations. Currently, most existing data from orbital imagery offers resolutions up to 0.5–2 m, which is inadequate for tasks requiring ...
Zhen Liang   +7 more
doaj   +1 more source

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