Results 81 to 90 of about 2,771 (192)

Solid Foams from Geopolymerization of Lunar Regolith Simulants Slurries

open access: yesColloids and Interfaces
Robust, lightweight, and thermally insulating building materials, developed according to the In Situ Resource Utilization (ISRU) paradigm, are essential for enabling Moon settlements.
Michela Elena Pedretti   +6 more
doaj   +1 more source

Structural Analysis of Lunar Regolith from LPR CH-2 Data Based on Adaptive f-x E MD: LPR Data Processed by Adaptive f-x EMD

open access: yesAdvances in Astronomy, 2019
The Lunar Penetrating Radar (LPR) is one of the important scientific payloads in China’s Chang’E-3 (CE-3) to image within 100 m below the lunar surface. The acquired LPR data is significant for the research of lunar geological structure.
Bin Hu   +3 more
doaj   +1 more source

Mineralogical sources of groundwater fluoride in Archaen bedrock/regolith aquifers: Mass balances from southern India and north-central Sri Lanka

open access: yesJournal of Hydrology: Regional Studies, 2015
Study region: The Maheshwaram and Waipally catchments of Andhra Pradesh, India, and the Plonnaruwa catchment of north-central Sri Lanka. Study focus: The distribution of F across eight crystalline phases and between the bedrock and the regolith at eleven
B.M. Hallett   +5 more
doaj   +1 more source

The charge state of electrostatically transported dust on regolith surfaces

open access: yesGeophysical Research Letters, 2017
The charge state of dust particles on regolith surfaces exposed to ultraviolet radiation or plasma is investigated for understanding the role of electrostatic dust transport in the surface evolution of airless planetary bodies.
J. Schwan   +4 more
doaj   +1 more source

Distinct element method for static and flow mobility characteristics of lunar regolith based on particle shape characteristics

open access: yesYantu gongcheng xuebao
Since it exhibits uniquely grain shape, physical and mechanical characteristics, the lunar regolith is extremely important for utilization of in-situ resources, selection of base station location and construction in lunar exploration.
SHI Anning 1 , JIANG Mingjing 2 , WANG Siyuan 1, LIN Jiayu 1
doaj   +1 more source

Photometry of Lunar Swirls in Comparison to Fresh Crater Ejecta

open access: yesThe Planetary Science Journal
Swirls are sinuous high-reflectance lunar surface features collocated with crustal magnetic anomalies. These bright features and their geographical relationship to magnetic anomalies have been studied for decades, although their cause remains unclear ...
Mallory J. Kinczyk   +6 more
doaj   +1 more source

A Review of Soil–Drone Interaction, Anchoring, and Penetration Mechanics in Lunar and Martian Regolith for Autonomous Exploration Systems

open access: yesDrones
Future planetary exploration missions are expected to employ increasingly sophisticated aerial, ground, and hybrid robotic systems that must interact directly with extraterrestrial regolith during landing, takeoff, mobility, anchoring, sampling, and ...
Emilia-Georgiana Prisăcariu   +1 more
doaj   +1 more source

Sintering lunar regolith pellets: a comparison of four samples from Apollo 11, 15, and 16

open access: yesMaterials Today Advances
Lunar regolith sintering is proposed as a technique to produce consolidated objects on the lunar surface from locally sourced materials. Understanding the sintering behaviour of real lunar regolith is necessary to optimise this process, however, due to ...
Bethany A. Lomax   +7 more
doaj   +1 more source

Thin regolith layer anticipated on the surface of the Tianwen-2 target asteroid (469219) Kamo‘oalewa

open access: yesAstronomy & Astrophysics
Context. Near-Earth asteroid (469219) Kamo‘oalewa is the first target of the ongoing Tianwen-2 sample-return mission. Ground-based observations measured its rotation period at only about 28 minutes, while the low thermal inertia value (Γ = 150 or 181 J m−
Ren Jialong   +4 more
doaj   +1 more source

Solar wind erosion of lunar regolith is suppressed by surface morphology and regolith properties

open access: yesCommunications Earth & Environment
Abstract Important aspects concerning the origin and formation of the Moon’s exosphere, its tenuous gas envelope, remain puzzling with uncertainties regarding the importance of different effects. Two competing processes — micrometeoroid impact vaporization and solar wind ion sputtering — are considered key contributors to the ejection of ...
Johannes Brötzner   +14 more
openaire   +4 more sources

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