Results 111 to 120 of about 88,907 (241)

Ionosphere‐Thermosphere Variability Due To Tidal Forcing From Below Versus Solar and Magnetospheric Forcing From Above

Journal of Geophysical Research: Space Physics, Volume 130, Issue 12, December 2025.
Abstract The sub‐monthly longitude‐UT variability of the following ionosphere and thermosphere (IT) parameters: zonal (Un) and meridional (Vn) winds, temperatures (Tn), vertical plasma drifts (Wiz ${\mathrm{W}}_{iz}$) and electron densities (Ne) at 300 km due to tidal “forcing from below” (Tb ${\mathrm{T}}_{b}$) and solar flux and magnetosphere (SM ...
Jeffrey M. Forbes, Xiaoli Zhang, Astrid Maute, Chihoko Cullens   +3 more
wiley   +1 more source

Prediction of the Wave Normal Angle of Proton‐Band EMIC Waves Near Geosynchronous Orbit

Journal of Geophysical Research: Space Physics, Volume 130, Issue 12, December 2025.
Abstract We investigate how the wave normal angle (WNA) and polarization of proton‐band electromagnetic ion cyclotron (EMIC) waves change as they travel from their source to Earth. This paper marks a significant milestone as the first full‐wave simulation of proton‐band EMIC waves reflecting from the ionosphere.
Eun‐Hwa Kim, Khan‐Hyuk Kim, Jay R. Johnson, Peter A. Damiano, Syun'ichi Shiraiwa, Yu Lin, Wesley Martin   +6 more
wiley   +1 more source

Characteristics of Helium Bulges and the Impact of Martian Year 34 Global Dust Storm Using MAVEN/NGIMS Observations and MarsPCM and MGITM Simulations

Journal of Geophysical Research: Planets, Volume 130, Issue 12, December 2025.
Abstract We investigate spatiotemporal characteristics of helium (He) bulges using data from the Neutral Gas and Ion Mass Spectrometer aboard NASA's Mars Atmosphere and Volatile EvolutioN Mission and numerical simulations from the Mars Planetary Climate Model (MarsPCM). During equinoxes, we observed a He bulge at equatorial latitudes in addition to the
Neha Gupta, Bijay Kumar Guha, Claus Gebhardt, Shaikha Al Dhaheri, Stephen Bougher, Roland M. B. Young, Ehouarn Millour, Luca Montabone, N. V. Rao, Piyush Sharma   +9 more
wiley   +1 more source

Accurate geometric albedo, shape, and size of Hi'iaka from a stellar occultation. [PDF]

Nat Commun
Fernández-Valenzuela E, Ortiz JL, Holler BJ, Sicardy B, Rommel FL, Vara-Lubiano M, Morales N, Vachier F, Desmars J, Kretlow M, Vieira-Martins R, Jehin E, Ferrais M, Santos-Sanz P, Rustamkulov Z, de la Vega A, Warner E, Benkhaldoun Z, Kamin R, Ryan A, Earls B, Conti D, de Wit J, Burdanov A, Francini R, Langill P, Morales R, Fraser W, Kiss C, Pál A, Souami D, Lecacheux J, Braga-Ribas F, Duffard R, Alvarez-Candal A, Benedetti-Rossi G, Morgado B, Camargo JIB, Júnior ARG, Assafin M, Aissa DB, Grigahcene Z, Buie MW, Licandro J, Alarcon MR, Serra-Ricart M, Castro-Tirado A, Fernandez-Garcia EJ, Iglesias-Marzoa R, Galindo-Guil FJ, González H, Gonçalves R, Rengstorf A, Flynn R, Olsen A, Hanna B, Barnes J, A'Hearn JA, Kreyche SM, Miller WJ, Mortensen LE, Gibson TC, Walker G, Stolle-McAllister G, Feiden GA, Froetschel J, Steel S, Encardes D, Fisher RS, Luken A, Holcomb E, Caton D, Dunford B, Monin D.   +73 more
europepmc   +1 more source

Automated Impact Melt Fracture Mapping on the Moon With Weakly Supervised Deep Learning

Journal of Geophysical Research: Planets, Volume 130, Issue 12, December 2025.
Abstract Cooling fractures found within impact melt deposits have been manually mapped within several craters on the Moon and Mercury, as their distribution can indicate which heat‐loss processes were most significant in the periods after impact.
Daniel Le Corre, Nigel Mason, Jeronimo Bernard‐Salas, David Mary, Nick L. J. Cox   +4 more
wiley   +1 more source

Author Correction: Helioseismic inference of the solar radiative opacity. [PDF]

Nat Commun
Buldgen G, Pain JC, Cossé P, Blancard C, Gilleron F, Pradhan AK, Fontes CJ, Colgan J, Noels A, Christensen-Dalsgaard J, Deal M, Ayukov SV, Baturin VA, Oreshina AV, Scuflaire R, Pinçon C, Lebreton Y, Corbard T, Eggenberger P, Salmon S, Hakel P, Kilcrease DP.   +21 more
europepmc   +1 more source

Nakhlite Emplacement as Constrained by X‐Ray Computed Tomography and 3D Quantitative Textural and Petrofabric Analyses

Journal of Geophysical Research: Planets, Volume 130, Issue 12, December 2025.
Abstract Nakhlites, clinopyroxene‐rich rocks, are the largest single‐origin suite of samples from Mars. Despite extensive study to discern their petrogenetic histories, nakhlite emplacement mechanisms and environments are not well‐constrained, and it is unknown whether they represent intrusive or extrusive igneous rocks, or a combination.
Sierra R. Ramsey, Piper Irvin, Arya Udry, Scott A. Eckley, Amanda Ostwald, Richard A. Ketcham   +5 more
wiley   +1 more source

A large, long-lived, slowly-expanding superbubble across the Perseus arm. [PDF]

Nat Commun
Chen B, Li G, Yuan H, Xiang M, Zhou J, Chen P, Krause M, Coombs A.   +7 more
europepmc   +1 more source

Overview of the MMT 60‐Day GEER Experiment on Geologic Samples at Venus Surface Conditions

Journal of Geophysical Research: Planets, Volume 130, Issue 12, December 2025.
Abstract Laboratory experiments on the behavior of rock and mineral samples under Venus conditions can yield a better understanding of gas‐solid chemical weathering on the Venus surface. The Glenn Extreme Environments Rig (GEER) vessel can maintain Venus surface temperature, pressure and a nine‐gas atmosphere for months.
Martha S. Gilmore, Alison R. Santos, Jeffrey Balcerski, Laura B. Breitenfeld, M. Darby Dyar, Daniel Gerges, Joern Helbert, Ian Henry, Noam Izenberg, Jennifer M. Jackson, Tibor Kremic, Dorothy Lukco, Molly McCanta, Craig Motil, Kyle Phillips, Sara T. Port, Joseph Rymut, Maximilian C. Scardelletti, Mark Sprouse, Mikhail Yu. Zolotov   +19 more
wiley   +1 more source

Subgiants in NGC 188 reveal that rotationally induced mixing creates the main sequence Li-Dip. [PDF]

Nat Commun
Sun Q, Deliyannis CP, Anthony-Twarog BJ, Twarog BA, Xu XT, Steinhauer A, King JR.   +6 more
europepmc   +1 more source