Results 101 to 110 of about 30,578 (233)

Radiation Exposure and Shielding Effects on the Lunar Surface

Space Weather
The Moon will be a primary target for human space exploration in the near future. A limiting factor for a crewed mission to the Moon is the radiation dose during their stay on the lunar surface.
Daniel Matthiä, Thomas Berger
doaj   +1 more source

Determination of the Dynamic Angle of Repose of Lunar Regolith Simulants

Geosciences
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, Damian Pietrusiak, Jakub Wróbel, Janusz Kozubal   +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

Journal 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, H.A. Dharmagunawardhane, S. Atal, E. Valsami-Jones, S. Ahmed, W.G. Burgess   +5 more
doaj   +1 more source

The contamination of the surface of Vesta by impacts and the delivery of the dark material

, 2014
The Dawn spacecraft observed the presence of dark material, which in turn proved to be associated with OH and H-rich material, on the surface of Vesta. The source of this dark material has been identified with the low albedo asteroids, but it is still a ...
Combe, J. -P., Corre, L. Le, De Sanctis, M. C., Longobardo, A., McCord, T. B., McSween, H. Y., Oklay, N., Palomba, E., Prettyman, T. H., Russell, C. T., SJ, G. J. Consolmagno, Turrini, D., Vincent, J. -B   +12 more
core   +1 more source

Mineralogical Characterization of the Lunar South Polar Region: 2. Exploring Mafic‐Bearing Targets With Optimized Traverse Paths at Mons Kocher

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Several national space agencies and commercial entities are currently targeting the Moon's south polar region for human and robotic exploration. Of particular interest are materials excavated and ejected from the Moon's largest and oldest impact structure, the South Pole‐Aitken Basin (SPA), as these ancient materials are a window into the ...
D. P. Moriarty III, N. E. Petro, B. A. Cohen   +2 more
wiley   +1 more source

Origin of Late Noachian‐Early Hesperian Valley Networks on Mars: Insights From Landform Evolution and Ice Sheet Modeling

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Dendritic valley networks on Mars have been cited as evidence for a warm and wet Noachian Mars, permitting rainfall precipitation and surface runoff. However, the climatic conditions required to sustain rainfall on early Mars remain debated.
K. R. Karpenko, J. L. Fastook, J. W. Head, A. D. Howard, C. I. Fassett, J. L. Dickson, K. E. Scanlon, B. D. Boatwright   +7 more
wiley   +1 more source

Spirulina supported plant growth in regolith simulants and elevated levels of CO2

Frontiers in Space Technologies
IntroductionA key element for sustainable off-world habitation is the ability to grow food through in-situ resource utilization (ISRU). Growth substrates are required to overcome the challenges of ISRU in the space environment, including the use of ...
Kristen A. Miller, Dennis Terry Trevino, Gilbert Cauthorn   +2 more
doaj   +1 more source

The charge state of electrostatically transported dust on regolith surfaces

Geophysical 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, X. Wang, H.‐W. Hsu, E. Grün, M. Horányi   +4 more
doaj   +1 more source

Site Specific Ground Response Analysis for Quantifying Site Amplification at A Regolith Site

Indonesian Journal on Geoscience, 2017
DOI: 10.17014/ijog.4.3.159-167A numerical model has demonstrated that it can simulate reasonably well earthquake motions at the ground level during a seismic event. The most widely used model is an equivalent linear approach.
Bambang Setiawan
doaj   +1 more source

Characterization of Mass Wasting Events on Lunar Maria Using Mini‐RF Radar Observations

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Evidence of mass wasting has been observed on the Moon since at least the Apollo era. Surface features indicative of mass wasting processes are traditionally characterized geomorphologically using visible images. In this study, we aim to better understand mass wasting features via their radar properties, which can provide insights into the ...
S. L. Pérez‐Cortés, A. M. Bramson, E. G. Rivera‐Valentín, C. A. Nypaver, G. W. Patterson, A. K. Virkki, P. A. Taylor, R. Melikyan   +7 more
wiley   +1 more source