Results 61 to 70 of about 674 (209)

Lunar Trailblazer Spacecraft Tracking and Mission Recovery Attempt: Characterization of Status and Behavior of a Non‐Cooperative Object in Cis‐Lunar Space

Earth and Space Science, Volume 13, Issue 8, August 2026.
Abstract Unexpectedly following launch, the Lunar Trailblazer mission experienced software anomalies that led it to orient solar panels away from the sun and lose communication with Earth. This paper describes efforts to determine the spacecraft state and attempt recovery of the mission's science at the Moon.
B. L. Ehlmann, J. Bellerose, G. Lantoine, E. Furlan, E. Scire, S. Fajardo‐Acosta, L. Bennett, M. Sanchez Net, T. J. W. Lazio, M. Brozović, J. Masiero, A. V. Steckel, P. A. Burke, M. Kimura, S. Foxman, M. P. M. Zaw, L. M. Lee, F. Clarke, M. Hauge, D. McDonald, J. Adler, R. Strauss, D. Trilling, C. S. Edwards, M. C. Nolan, D. Lyster, L. Robinson, A. T. Klesh, C. C. Seybold   +28 more
wiley   +1 more source

A Novel Clustering-Based Methodology for Mapping Lunar Surface Minerals Using Moon Mineralogy Mapper (M³) Hyperspectral Data

Remote Sensing
In this study, we introduce a novel clustering-based methodology for mapping lunar surface mineralogy using hyperspectral data from the Moon Mineralogy Mapper (M3).
George Messinios, Konstantinos Koutroumbas, Olga Sykioti   +2 more
doaj   +1 more source

Utilizing NASA's Operation IceBridge Airborne SWE and Precipitation Products to Assess Surface Snow Over Alaskan Glaciers

Earth and Space Science, Volume 13, Issue 8, August 2026.
Abstract Accurately estimating Snow Water Equivalent (SWE) in glacierized regions is critical for glacier modeling and mass balance analysis yet remains challenging due to sparse observations and uncertainties in precipitation products. The objectives are twofold: (a) assess how well three widely used precipitation datasets—Stage IV (a radar–gauge ...
Yang Song, Ali Behrangi
wiley   +1 more source

Impact-induced mixing generated the stratified soils of the Lunar South Pole Aitken Basin

Communications Earth & Environment
The Mg-pyroxene annulus in the South Pole–Aitken (SPA) basin holds crucial information about the lunar crustal evolution, yet its mineralogy and origin remain debate. Here we analyzed the mineralogy, exogenic ejecta, and soil evolution of the 2.8-billion-
Haijun Cao, Jian Chen, Xuejin Lu, Jiaqi Kong, Le Qiao, Chengxiang Yin, Changqing Liu, Hongkun Qu, Xiaohui Fu, Yanqing Xin, Zongcheng Ling   +10 more
doaj   +1 more source

The Length of Martian Crater Rays and Their Relation to Lunar Cold Spots

Journal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.
Abstract Impact‐generated crater rays are well‐documented on the Moon, with most appearing as high‐albedo streaks extending radially from a crater's center. On Mars, however, crater rays are significantly rarer and discernible only through thermal imaging due to their lower thermal inertia compared to surrounding terrain.
Trevor P. Erwin, Brandon C. Johnson, David Minton, Alexandria V. Johnson   +3 more
wiley   +1 more source

Remote Compositional Analyses of Space-weathered Lunar Maria

The Planetary Science Journal
Visible-to-shortwave infrared (VSWIR) reflectance spectroscopy has revolutionized our understanding of planetary surface compositions. However, space-weathering processes on airless bodies complicate quantitative compositional analyses.
Ji-In Jung, Mathieu G. A. Lapôtre, Ralph E. Milliken, Sarah E. Minson   +3 more
doaj   +1 more source

Mineralogy of Antarctic lunar meteorites and differentiated products of the lunar crust

Mineralogy of Antarctic lunar meteorites and differentiated products of the lunar crust
P(論文) The mineralogy of clasts containing pyroxenes and glassy matrices of lunar meteorites, Yamato-791197 (Y-791197) and Allan Hills A81005 (ALHA81005) has been studied by an electron microprobe and an analytical transmission electron microscope (ATEM).
openaire   +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

Radiance Contrasts at Possible Lunar Water Ice Exposures Seen by ShadowCam

The Planetary Science Journal
Surface water ice within lunar permanently shadowed regions (PSRs) could have an enhanced visible wavelength reflectance relative to lunar regolith.
Jordan Ando, Shuai Li, Mark Robinson, Robert Wagner   +3 more
doaj   +1 more source

Sintering lunar regolith pellets: a comparison of four samples from Apollo 11, 15, and 16

Materials Today Advances
Lunar regolith sintering is proposed as a technique to produce consolidated objects on the lunar surface from locally sourced materials. Understanding the sintering behaviour of real lunar regolith is necessary to optimise this process, however, due to ...
Bethany A. Lomax, Gabin Charpentier, Arnaud Nizet, Alexander Rützler, Alice Suarez Kahan, Francesca McDonald, Robert Lindner, James D. Carpenter   +7 more
doaj   +1 more source