Results 71 to 80 of about 91,919 (244)

Mechanical Characteristics of Lunar Regolith Drilling and Coring and Its Crawling Phenomenon: Analysis and Validation

Aerospace, 2022
The collection of lunar regolith with complete stratigraphic information is the key to analyzing the evolution and composition of the moon. To keep each sample’s stratification for further analysis, a sampling method called flexible-tube coring has been ...
Junyue Tang, Tian Yang, Xiren Chen, Zhiheng Zhang, Ye Tian, Weiwei Zhang, Shengyuan Jiang   +6 more
doaj   +1 more source

Solar 3D printing of lunar regolith

Acta Astronautica, 2018
Abstract The authors demonstrated the feasibility of sintering lunar regolith layer-by-layer solely using concentrated sunlight. First trials using actual concentrated sunlight led to an inhomogeneous sintering of individual layers of lunar regolith simulant, due to the significant flux density variations caused by atmospheric fluctuations.
A. Meurisse, A. Makaya, C. Willsch, M. Sperl   +3 more
openaire   +2 more sources

Interactions of rare earth elements with living organisms and emerging biotechnical applications

PLANTS, PEOPLE, PLANET, Volume 7, Issue 5, Page 1251-1274, September 2025.
Rare earth elements (REEs) are critical resources required to achieve net‐zero carbon emission targets and energy security. However, rising demand for REEs coupled with significant extraction and processing challenges and geopolitical risks restricts access to REE resources.
Samantha A. McGaughey, Shagufta Iqbal, Annamaria De Rosa, Jessica A. Caley, Anna H. Kaksonen, Denys Villa‐Gomez, Caitlin S. Byrt   +6 more
wiley   +1 more source

A Comprehensive Framework for Assessing Terrestrial Analogue Field Sites for Ocean Worlds

Journal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.
Abstract Field studies at terrestrial analogue sites represent an important contribution to the science of ocean worlds. The value of the science and technology investigations conducted at field analogue sites depends on the relevance of the analogue environment to the target ocean world.
Jennifer C. Stern, Heather V. Graham, Bradley Burcar, Emily S. Martin, Aaron Noell, Kevin Hand, Jeff S. Bowman, Peter Doran, Virginia Edgcomb, James F. Holden, Alta E. G. Howells, Michael J. Malaska, Brook L. Nunn, Jani Radebaugh, Laura E. Rodriguez, Schuyler Borges, Dina Bower, Samuel Courville, Melisa Diaz, Benjamin Hockman, Julie Huber, Justin Lawrence, Trista Vick‐Majors, Conor A. Nixon, John R. Spear, Amanda V. Steckel, Anezina Solomonidou, Nicholas Schmerr, Britney Schmidt, Matthew O. Schrenk, Lauren Seyler, Amy R. Smith, Catherine C. Walker, Patrick Whelley, Natalie Wolfenbarger, Steven D. Vance   +35 more
wiley   +1 more source

Testing the Fidelity of Paleopole Determinations From Multidirectionally Magnetized Lunar Crustal Anomaly Source Bodies

Journal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.
Abstract Inversions of satellite observations of the lunar crustal magnetic field do not consistently produce regional magnetization directions consistent with a selenocentric axial dipolar field. We modeled the thermal evolution of anomaly source bodies in the lunar crust and found that large features (impact melt sheets and ejecta deposits) cool ...
T. Chaffee, S. M. Tikoo, R. E. Maxwell, I. Garrick‐Bethell   +3 more
wiley   +1 more source

Northwest Africa 16788: The Largest Known Individual Martian Meteorite—A New Olivine Microgabbroic Shergottite and Its Implications for Martian Magmatism

Journal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.
Abstract We present a comprehensive study of a new Martian meteorite, Northwest Africa (NWA) 16788, found in the Sahara Desert in July 2023. This specimen constitutes the largest known individual meteorite of Martian origin, with a total weight of ⁓25 kg. A detailed mineralogical and geochemical investigation identifies NWA 16788 as an enriched olivine
Xhonatan Shehaj, Giovanni Pratesi, Cristian Carli, Riccardo Avanzinelli, Alice Stephant, Annarita Franza, Eleonora Ammannito   +6 more
wiley   +1 more source

Global Effects of Magnetic Anomalies on the Near‐Surface Lunar Plasma Environment

Journal of Geophysical Research: Space Physics, Volume 130, Issue 9, September 2025.
Abstract The interaction between lunar magnetic anomalies and the solar wind plasma creates unique structures known as “lunar mini‐magnetospheres,” which reflect and partially shield the lunar surface from impinging solar wind protons. Using data from the Sub‐KeV Atom Reflecting Analyzer onboard Chandrayaan‐1, we produce new surface maps of energetic ...
Thomas Maynadié, Yoshifumi Futaana, Stas Barabash, Martin Wieser, Shahab Fatemi, Audrey Vorburger, Anil Bhardwaj, Peter Wurz, Kazushi Asamura   +8 more
wiley   +1 more source

Evaluating the Depth–Age Hypothesis for the Evolution of the Lunar Regolith

The Planetary Science Journal
Lunar regolith is the fractured rock layer covering most of the lunar surface. This rock is fractured into regolith primarily by repeated meteorite impacts over eons.
Gwendolyn D. Bart
doaj   +1 more source

Application of Finite Difference Method for determining lunar regolith diurnal temperature distribution

E3S Web of Conferences, 2018
This study was performed in order to verify viability of using finite difference method and proposed simple astrometrical model for modelling heat transfer in lunar regolith. The concept was examined by developing FD model of heat flow for upper 0,9 m of
Kaczmarzyk Marcin, Gawronski Marcin, Piatkowski Grzegorz   +2 more
doaj   +1 more source

Lunar Regolith Temperature Variation in the Rümker Region Based on the Real-Time Illumination

Remote Sensing, 2020
Chang’E-5 will be China’s first sample−return mission. The proposed landing site is at the late-Eratosthenian-aged Rümker region of the lunar nearside.
Zhen Zhong, Jianguo Yan, Zhiyong Xiao
doaj   +1 more source