Results 71 to 80 of about 2,807 (203)

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

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

Advances 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, Deli Wang, Ling Zhang, Zhaofa Zeng   +3 more
doaj   +1 more source

What Earth Erases: Weathering Diversity of Mineral Phases Formed in a Highly Reduced Environment Hosted in Aubrites

Journal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.
Abstract Meteorites serve as an exceptional source of insight into our planet and the Solar System. Most meteorite fragments were recovered hundreds to thousands of years after their fall, and therefore exhibit varying degrees of terrestrial weathering, which has altered or completely removed weather‐sensitive mineral phases.
M. Kołodziej, B. Pieterek, G. Zieliński, K. Załęski, E. Coy   +4 more
wiley   +1 more source

Solar wind erosion of lunar regolith is suppressed by surface morphology and regolith properties. [PDF]

Commun Earth Environ
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 ...
Brötzner J, Biber H, Szabo PS, Jäggi N, Fuchs L, Nenning A, Fellinger M, Nagy G, Pitthan E, Primetzhofer D, Mutzke A, Wilhelm RA, Wurz P, Galli A, Aumayr F.   +14 more
europepmc   +5 more sources

Visible, near‐, and thermal infrared spectra of asteroid Bennu samples: Relationship to and implications for remote sensing of carbonaceous asteroids

Meteoritics &Planetary Science, Volume 61, Issue 8, Page 1788-1805, August 2026.
Abstract Remote spectroscopy is used to characterize the mineralogy and infer the history of planetary bodies. Carbonaceous asteroids, such as B‐type (101955) Bennu, represent the earliest stages of planet formation. B types have a blue (negative) spectral slope and comprise <5% of asteroids.
V. E. Hamilton, E. A. Cloutis, R. E. Milliken, P. Haenecour, D. R. Golish, K. J. Domanik, T. J. McCoy, L. P. Keller, A. A. Simon, H. H. Kaplan, C. A. Goodrich, S. A. Sandford, D. Applin, T. Hiroi, D. H. Hill, N. G. Lunning, F. M. McCubbin, S. A. Eckley, C. J. Snead, E. H. Blumenfeld, J. E. Aebersold, C. Schultz, N. Bowles, K. A. Shirley, S. S. Russell, J. J. Barnes, T. J. Zega, D. N. DellaGiustina, A. J. Ryan, D. P. Glavin, J. P. Dworkin, H. C. Connolly Jr., D. S. Lauretta   +32 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 role of composition in the spectral evolution of carbonaceous asteroids as informed by Bennu sample return

Meteoritics &Planetary Science, Volume 61, Issue 8, Page 1875-1904, August 2026.
Abstract Near‐Earth rubble‐pile asteroids Bennu and Ryugu are part of the carbonaceous taxonomic complex (C‐complex), and samples returned from both bodies resemble the most aqueously altered carbonaceous chondrites. However, telescopic and spacecraft visible–near infrared (VIS–NIR) reflectance spectra of Ryugu exhibit a red (positive) spectral slope ...
Ralph E. Milliken, Takahiro Hiroi, Victoria E. Hamilton, Cody D. Schultz, Ed A. Cloutis, Hannah H. Kaplan, Melissa K. Kontogiannis, Nathalia Vega‐Santiago, Dani N. DellaGiustina, Harold C. Connolly Jr., Dante S. Lauretta   +10 more
wiley   +1 more source

Solid Foams from Geopolymerization of Lunar Regolith Simulants Slurries

Colloids 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, Libero Liggieri, Luca Valentini, Giovanna Canu, Alberto Lagazzo, Francesca Ravera, Eva Santini   +6 more
doaj   +1 more source

Stardust Mine: A 2024 gabbroic shergottite from Arizona, USA

Meteoritics &Planetary Science, Volume 61, Issue 8, Page 1826-1846, August 2026.
Abstract This study provides an initial characterization of Stardust Mine, a fresh gabbroic enriched shergottite collected in Arizona, USA, in September 2024 and is the first Martian meteorite to be unequivocably collected on US soil. Analysis was conducted on the type specimen and finds that Stardust Mine is composed of equal proportions of pyroxene ...
Jennifer T. Mitchell, Natasha R. Stephen, Zsuzsanna P. Allerton, Weiming Ding, Xin‐Yuan Zheng   +4 more
wiley   +1 more source