Results 31 to 40 of about 1,847 (170)

A Low‐Power Radioisotope XRF Spectrometer for Detection of Light Elements on Planetary Missions

X-Ray Spectrometry, Volume 55, Issue 5, Page 721-729, September/October 2026.
ABSTRACT Current X‐ray spectrometers for in situ geochemical analysis on planetary missions typically rely either on X‐ray tubes, which demand electrical power and add mass and thermal complexity, or on alpha particle X‐ray spectrometers (APXS) that use rare 244 Cm sources, and come with severe concerns on radiation safety and isotope availability.
Leandro Silveri, Artem Knyazev, Hashem Alaidaros, Maryam Manzoor Amanullah, Zach Ioannou, Tengiz Ibrayev, Danish Khan, Sara Leardini, Laura Manenti, Simi Maria Emilia Mangani, Safa Naseem, Sandhya Sharma, Sara Trevisan, Alia Zino, Francesco Arneodo   +14 more
wiley   +1 more source

Unveiling the Lost Australe Basin on the Moon: Spectroscopic Evidence from Chandrayaan-1 M3

The Planetary Science Journal
Mare Australe on the Moon features a peculiar style of basalt emplacement, where volcanism occurs in small patches arranged in a circular pattern, not confined to an established impact basin.
Neha Panwar, Tvisha Kapadia, Neeraj Srivastava   +2 more
doaj   +1 more source

Large (∼80 km) Shield Volcanoes on the Moon Possibly Fed by Shallow Magma Reservoirs

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Large shield volcanoes are among the most prominent volcanic structures on terrestrial bodies. The Moon, while volcanically very active in the past and hosting various volcanic features, seems to lack such large shield volcanoes. Here, we report the identification of two lunar volcanic domes (Prinz‐Harbinger and Theophilus) with diameters ...
Le Qiao, James W. Head, Dengao Qiu, Wei Cao, Luyuan Xu, Yiran Wang, Ruixin Li, Jian Chen, Jianguo Yan, Zongcheng Ling   +9 more
wiley   +1 more source

Space Weathering Properties of Chang’e-6 Soils and Implication for Regolith Evolution of Young Lunar Maria

The Astrophysical Journal Letters
Lunar soil samples from young maria (formed 3.0 Ga) and higher than the ∼21% found in the Chang’e-5 soils from younger mare (∼2.0 Ga). However, our spectroscopic study reveals that the Chang’e-6 soils are well developed, with high maturity, weak ...
Xuejin Lu, Jian Chen, Haijun Cao, Changqing Liu, Ziyi Jia, Chengxiang Yin, Tianwei Wang, Xiaohui Fu, Le Qiao, Xiaojia Zeng, Jiang Zhang, Zongcheng Ling   +11 more
doaj   +1 more source

Blood‐Based Circulating Tumor DNA Assays for Early Colorectal Cancer Detection: A Systematic Review of Performance in Asymptomatic Screening Populations

International Journal of Cancer, Volume 159, Issue 4, Page 1028-1041, 15 August 2026.
Early detection of colorectal cancer via population‐based screening programs can reduce incidence and mortality, but current screening approaches are limited. This systematic review evaluated the screening potential of blood‐based circulating tumor DNA assays in asymptomatic screening populations.
Caroline Ledertoug Kahn, Maria Wissing Rasmussen, Jakob Kleif, Inge Søkilde Pedersen, Christina Therkildsen   +4 more
wiley   +1 more source

Geologic Mapping and Reconstruction of the Volcanic and Tectonic History of the Mare Vaporum Region to Assess Resource Potential

The Planetary Science Journal
Returning to the lunar surface is a key objective for several nations with the goal of addressing scientific questions and assessing potential resources that could enable future exploration on and beyond the Moon.
Astrid Oetting, Lukas Wueller, Carolyn H. van der Bogert, Giulia Consuma, Wajiha Iqbal, James Carpenter, Thomas Heyer   +6 more
doaj   +1 more source

New Observations of Recently Active Wrinkle Ridges in the Lunar Mare: Implications for the Timing and Origin of Lunar Tectonics

Geophysical Research Letters, 2022
The variety of tectonic features on the Moon indicates that the lunar lithosphere has undergone a complex deformational history. Lobate scarps and wrinkle ridges are two such tectonic features that have resulted from compressional stresses.
C. A. Nypaver, B. J. Thomson
doaj   +1 more source

Tides of the Midland: From Groundwater Into the River

Hydrological Processes, Volume 40, Issue 8, August 2026.
Tides in a river that is NOT influenced by the ocean, is not in the coastal area and is more than 300 m above sea level are caused by groundwater tides. As the phases of the Moon change, the amplitudes of the streamwater oscillations vary synchronously with those of gravitational acceleration.
Andrei‐Emil Briciu
wiley   +1 more source

Automated Mineral Identification and Rock‐Type Classification of Lunar Mare Basalts Using SEM Images

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract We present an automated system for identifying minerals and classifying rock types in Apollo lunar mare basalts using scanning electron microscopy (SEM) imagery. Mineral segmentation is based on a U‐Net architecture, supplemented by two scale‐aware models designed to incorporate pixel size information.
Ji‐In Jung, Sonia M. Tikoo, Jaehong Chung, Claire I. O. Nichols   +3 more
wiley   +1 more source

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

Meteoritics &Planetary Science, Volume 61, Issue 8, Page 2048-2072, August 2026.
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, Alexander M. Kling, Luke Daly, Dieter Isheim, David N. Seidman, Michelle S. Thompson, Philipp R. Heck   +6 more
wiley   +1 more source