Results 71 to 80 of about 2,638 (227)

Identification of small impact craters in Chang’e-4 landing areas using a new multi-scale fusion crater detection algorithm

Earth and Planetary Physics
Impact craters are important for understanding the evolution of lunar geologic and surface erosion rates, among other functions. However, the morphological characteristics of these micro impact craters are not obvious and they are numerous, resulting in ...
FangChao Liu, HuiWen Liu, Li Zhang, Jian Chen, DiJun Guo, Bo Li, ChangQing Liu, ZongCheng Ling, Ying-Bo Lu, JunSheng Yao   +9 more
doaj   +1 more source

Low Abundances of Ultramafic Components in the Chang'e‐6 Landing Site Basalt and Ejecta Material

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract The South Pole‐Aitken (SPA) Basin, the Moon's largest impact structure, holds key insights into lunar evolution, prompting the Chang'e‐6 mission to return first samples for ground‐truth verification. Analysis of over 6,000 grains from the Chang'e‐6 soil returned from the SPA Basin reveals a composition dominated by clinopyroxene (26.5–32.9 vol.
Zhenbing She, Zaicong Wang, Tianyang Li, Hao Zhang, Qi He, Yiheng Li, Antong Gao, Yi Gu, Zichen Wei, Yan Zhuang, Changhao Ni, Shuang Shi, Jiawei Li, Jiawei Zhao, Wen Zhang, Jiaqi Zheng, Xu Chen, Keqing Zong, Zhaochu Hu, Xiang Wu, Long Xiao   +20 more
wiley   +1 more source

Regolith in Motion: Dynamic Surface Evolution After Lunar Impacts

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Multi‐temporal observations captured by the Lunar Reconnaissance Orbiter Camera provide valuable insights into contemporary surface changes. These images reveal that minor impact events (resulting in <100‐m diameter craters) significantly alter regolith structure over great distances (>1,000 crater diameters) by increasing the meter‐to ...
E. J. Speyerer, M. S. Robinson, A. K. Boyd   +2 more
wiley   +1 more source

Mapping Terrestrial Impact Craters with the TanDEM-X Digital Elevation Model

, 2013
The TanDEM-X mission generates a global digital elevation model (DEM) with unprecedented properties. We use it for mapping confirmed terrestrial impact craters as listed in the Earth Impact Database.
Gottwald, Manfred, Schättler, Birgit, Breit, Helko, Harris, Alan, Fritz, Thomas   +4 more
core  

Characterizing Volcanic and Impact Materials in Lunar Craters

, 2022
Impact craters on the Moon are typically infilled by either impact or volcanic melt, but outside of a few previously known characteristics, identification can be complicated.
Robbins, Gwendolyn
core  

A New Detailed Global Map of Lunar Light Plains

The Planetary Science Journal
Lunar light plains (LPs) are globally distributed, smooth and flat geologic units occurring in crater floors and topographic lows, similar in morphology to mare basalts, but with moderate to high albedo.
Barbara Giuri, Carolyn H. van der Bogert, Harald Hiesinger, Nico Schmedemann   +3 more
doaj   +1 more source

Global Lunar Crater Density Using Buffered Nonsparseness Correction

The Planetary Science Journal
The density of craters on a planetary surface directly relates to the age of the surface. As the surface ages, however, craters can be erased by subsequent large impacts via direct overprinting, known as geometric crater obliteration.
Ya Huei Huang, Christian Riedel, Jason M. Soderblom, Stephanie Brown Krein, Csilla Orgel, Jack W. Conrad, Masatoshi Hirabayashi, David A. Minton   +7 more
doaj   +1 more source

Degenerate optimization problems of economy and power engineering

Nuclear Energy and Technology, 2015
Optimization of large economy and power engineering systems leads to degenerate solutions of a high dimensionality. This is a very strong mathematical complication.
A.V. Klimenko
doaj   +1 more source

Life on Mars? The physiological perspective

Experimental Physiology, EarlyView.
Ronan M. G. Berg, Damian M. Bailey
wiley   +1 more source

Lunar impact craters

, 1964
Topography and evolution of lunar craters - meteoritic impact ...
Lowman, P. D., Jr.
core