Results 141 to 150 of about 159,297 (260)

Thermal Segregation and Reddening in Europa's Double Ridges

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Europa's double ridges often display lower albedo and redder color than their surroundings. Their unique topography may cause sublimation‐driven darkening due to illumination and self‐heating—the process of thermal segregation. We apply an advanced 3D thermophysical model, including shadowing and self‐heating through mutual exchange of ...
Kya C. Sorli   +3 more
wiley   +1 more source

MARVEL Analysis of the Measured High-resolution Spectra of 12C16O

open access: yesThe Astrophysical Journal Supplement Series
The Measured Active Rotational–Vibrational Energy Levels (MARVEL) algorithm is used to determine accurate empirical rotational–vibrational energy levels for the ground electronic state of the diatomic ^12 C ^16 O molecule.
Salman Mahmoud   +9 more
doaj   +1 more source

Non‐Migrating Thermal Tides in the Martian Lower Atmosphere Observed by EMM/EMIRS

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Thermal tides significantly influence Martian atmospheric dynamics and radiative transfer. However, the excitation mechanisms of non‐migrating tides, exhibiting diverse spatial structures, remain poorly understood due to the limited number of observations.
Cong Sun   +13 more
wiley   +1 more source

Laboratory Study of Magnetic Reconnection in Lunar-relevant Mini-magnetospheres

open access: yesThe Astrophysical Journal
Mini-magnetospheres are small ion-scale structures that are well suited to studying kinetic-scale physics of collisionless space plasmas. Such ion-scale magnetospheres can be found on local regions of the Moon, associated with the lunar crustal magnetic ...
Lucas Rovige   +9 more
doaj   +1 more source

Mineralogical Characterization of the Lunar South Polar Region: 2. Exploring Mafic‐Bearing Targets With Optimized Traverse Paths at Mons Kocher

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Several national space agencies and commercial entities are currently targeting the Moon's south polar region for human and robotic exploration. Of particular interest are materials excavated and ejected from the Moon's largest and oldest impact structure, the South Pole‐Aitken Basin (SPA), as these ancient materials are a window into the ...
D. P. Moriarty III   +2 more
wiley   +1 more source

Lateral Variations in Lunar Crustal Thickness Inferred From Apollo Seismic and GRAIL Gravity Data

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract The internal structure of the Moon is key to understanding its formation, evolution, and bulk composition. In particular, determining the structure of the crust–mantle interface (Moho), including its lateral variations, is of significant importance, but current knowledge is still insufficient to fully constrain it.
Xiang Zhang   +7 more
wiley   +1 more source

Two LANL laboratory astrophysics experiments

open access: yes, 2014
Two laboratory experiments are described that have been built at Los Alamos (LANL) to gain access to a wide range of fundamental plasma physics issues germane to astro, space, and fusion plasmas. The overarching theme is magnetized plasma dynamics which includes significant currents, MHD forces and instabilities, magnetic field creation and ...
openaire   +2 more sources

Impact Plasma Amplification of the Ancient Mercury Magnetic Field

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Spacecraft measurements of Mercury indicate that it has a core dynamo with a surface field of 200–800 nT. These data also indicate that the northern hemisphere crust contains remanent magnetization likely produced by an ancient magnetic field. The inferred magnetization intensity is consistent with a wide range of paleofield strengths (0.2–50 ...
Isaac S. Narrett   +6 more
wiley   +1 more source

Galactic Neighborhood and Laboratory Astrophysics

open access: yes, 2011
The galactic neighborhood, extending from the Milky Way to redshifts of about 0.1, is our unique local laboratory for detailed study of galaxies and their interplay with the environment. Such study provides a foundation of knowledge for interpreting observations of more distant galaxies and their environment.
openaire   +2 more sources

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