Results 41 to 50 of about 811 (168)

LifeMet: Report on the 2024–2025 meteorite recovery expedition in Dronning Maud Land, Antarctica for the study of microbe–meteorite interactions

Meteoritics &Planetary Science, EarlyView.
Abstract Since the discovery of nine meteorites near the Yamato mountains in 1969, Antarctica has been recognized as a superb location for meteorite recovery. While Antarctic recovery expeditions prioritize meteorite preservation for mineralogical and planetary studies, meteorites are not typically collected for biological applications.
Rachael Lappan, Rachel S. Kirby, Andrew G. Tomkins   +2 more
wiley   +1 more source

Large-Scale Block Bundle Adjustment of LROC NAC Images for Lunar South Pole Mapping Based on Topographic Constraint

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
With the increasing interest in the south polar region of the Moon, there is an urgent need for high-resolution mapping products to support future exploration.
Chen Chen, Zhen Ye, Yusheng Xu, Dayong Liu, Rong Huang, Miyu Zhou, Huan Xie, Xiaohua Tong   +7 more
doaj   +1 more source

Constraints on the volatile distribution within Shackleton crater at the lunar south pole [PDF]

Nature, 2012
Shackleton crater is nearly coincident with the Moon's south pole. Its interior receives almost no direct sunlight and is a perennial cold trap, making Shackleton a promising candidate location in which to seek sequestered volatiles. However, previous orbital and Earth-based radar mapping and orbital optical imaging have yielded conflicting ...
Zuber, Maria T., Head, James W., Smith, David E., Neumann, Gregory A., Mazarico, Erwan, Torrence, Mark H., Aharonson, Oded, Tye, Alexander R., Fassett, Caleb I., Rosenburg, Margaret A., Melosh, H. Jay   +10 more
openaire   +3 more sources

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

Meteoritics &Planetary Science, EarlyView.
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

Lunar South Polar Water Cycle and Water Resources: Diurnal and Spatial Variations in Surficial Hydration From Repeated Moon Mineralogy Mapper Observations

Geophysical Research Letters
The diurnal variation and distribution of lunar surficial hydration (OH/H2O) is of great significance for understanding the solar wind implantation and water cycle on the Moon.
Yu Lu, Wenwen Wang, Hengyue Jiao, Tianyi Xu, Xuejiao Chen, Yunzhao Wu   +5 more
doaj   +1 more source

Prior information guided cost optimization for terrain generation from high-resolution orbiter imagery of lunar south pole

International Journal of Applied Earth Observations and Geoinformation
Precise reconstruction of lunar south pole’s terrain is crucial for future exploration missions, particularly for landing site selection, resource identification, and scientific research. However, the challenging illumination conditions, characterized by
Miyu Zhou, Zhen Ye, Rong Huang, Dayong Liu, Huan Xie, Yusheng Xu, Xiaohua Tong   +6 more
doaj   +1 more source

Confined spaces in space: Cerebral implications of chronic elevations of inspired carbon dioxide and implications for long‐duration space travel

Experimental Physiology, EarlyView.
Abstract Cerebrovascular regulation is critically dependent upon the arterial partial pressure of carbon dioxide (PaCO2${P_{{\mathrm{aC}}{{\mathrm{O}}_{\mathrm{2}}}}}$), owing to its effect on cerebral blood flow, tissue PCO2${P_{{\mathrm{C}}{{\mathrm{O}}_{\mathrm{2}}}}}$, tissue proton concentration, cerebral metabolism and cognitive and neuronal ...
Jay M. J. R. Carr, Philip N. Ainslie, Trevor Day   +2 more
wiley   +1 more source

Adaptive Weighted Multi-image Shape from Shading for Precise Topographic Reconstruction at the Lunar South Pole

The Astronomical Journal
The generation and analysis of fine surface topography are critical for landing site selection at the lunar south pole. The Shape from Shading (SFS) technique can theoretically reconstruct a pixel-level resolution topographic model.
Zhen Ye, Jia Qian, Yusheng Xu, Hong Zhang, Tao Tao, Rong Huang, Shijie Liu, Huan Xie, Xiaohua Tong   +8 more
doaj   +1 more source

Sex differences in cerebral blood flow and cardiac function in response to exercise in the heat

Experimental Physiology, EarlyView.
Abstract We investigated the effect of exercising in hot conditions on cerebral blood flow and systolic left ventricular (LV) function in males and females, to explore sex differences. The experimental condition consisted of walking on a treadmill at 5 km/h and 2% incline, inside a heat chamber at 40°C (50% relative humidity), for 90 min.
João Carlos Locatelli, Juliene G. Costa, Kristanti W. Wigati, Jesse L. Criddle, Julie J. Collis, Xingwei Xu, Louise H. Naylor, Howard H. Carter, Shane K. Maloney, Robert A. McLaughlin, Andrew Haynes, Helen Jones, Keith George, Daniel J. Green   +13 more
wiley   +1 more source

Lunar Degree-2 Tidal Love Number Determination Based on Combination of Four-way Radiometric Tracking and LLR Data

The Astronomical Journal
Lunar tidal Love numbers ( ${k}_{2}$ , ${h}_{2}$ , and ${l}_{2}$ ), critical for understanding lunar interior structures, are traditionally derived from methods such as lunar spacecraft radiometric tracking, Lunar Laser Ranging (LLR), and laser altimetry.
Chongyang Wang, Jianguo Yan, Shangbiao Sun, Denggao Qiu, Jean-Pierre Barriot   +4 more
doaj   +1 more source