Results 81 to 90 of about 33,721 (170)

Analytical Model of a Toroidal Mode Field Line Resonance and Its Drift‐Resonant Interaction With Energetic Electrons

Journal of Geophysical Research: Space Physics, Volume 130, Issue 12, December 2025.
Abstract Ultra‐low‐frequency (ULF) waves play a critical role in magnetospheric dynamics, yet their transient growth and resonant electron interactions remain poorly understood. We develop a first‐principle model of toroidal mode field line resonances that captures wave growth, saturation, and phase mixing.
J. Liu, R. Rankin, A. W. Degeling, F. Fenrich   +3 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

Spectral Study of Five Major Impact Basins and Their Volcanic Infills on Mercury: A Window Into the Mantle's Properties

Journal of Geophysical Research: Planets, Volume 130, Issue 12, December 2025.
Abstract NASA's MErcury Surface, Space ENvironment, GEochemistry, and Ranging mission has revealed that about 27% of the surface of Mercury is covered by smooth plains, which are mostly volcanic in origin. These plains are mainly located in the northern hemisphere, as well as within and around major impact basins.
E. Caminiti, S. Besse, A. Doressoundiram, J. Wright   +3 more
wiley   +1 more source

Four‐Peak Structure on Equatorial Ionization Anomaly Crests During the May 2024 Geomagnetic Storms

Space Weather, Volume 23, Issue 12, December 2025.
Abstract This study investigates the four‐peak electron density structure in the Equatorial Ionization Anomaly (EIA) during the intense geomagnetic storms of 10–20 May 2024, utilizing dayside data at ∼500 km from the China Seismo‐Electromagnetic Satellite (CSES‐01).
Weixing Pu, Yanyan Yang, Rui Yan, Shun‐Rong Zhang, Chao Xiong, Roberto Battiston, Zeren Zhima, Piersanti Mirko, He Huang, Giulia D’Angelo, Xiaoying Sun, Yuyang Huang, Zihang Wang   +12 more
wiley   +1 more source

Extra Ionization Causing the Anomalous Auroral Sporadic E Layer (Esa) Over the Equatorial Brazilian Region During the Recovery Phase of the Magnetic Storm on 10 May 2024

Space Weather, Volume 23, Issue 12, December 2025.
Abstract The center of the South American Magnetic Anomaly (SAMA), located in southern Brazil, is characterized by enhanced energetic particle precipitation (EPP) at low energies (<40 keV), which can significantly impact the ionosphere during intense geomagnetic storms.
L. C. A. Resende, Y. Zhu, R. A. J. Chagas, C. M. Denardini, K. V. S. Espinosa, S. S. Chen, L. A. Da Silva, L. R. Alves, J. Moro, S. R. Laranja, A. M. Santos, V. F. Andrioli, L. L. Campos, J. P. Marchezi, J. R. Costa, C. Wang, H. Li, Z. Liu   +17 more
wiley   +1 more source

Unusual SuperDARN Backscatter During the 11 May 2024 Geomagnetic Storm

Space Weather, Volume 23, Issue 12, December 2025.
Abstract A geomagnetic storm, one of the largest in this solar cycle, was launched on 10 May 2024, producing spectacular auroral displays that could be observed across the continental United States (US) at middle and low latitudes. In this study, we focus on a brief 20‐min interval during the peak of the storm when the Sym‐H index dropped to ∼ ${\sim} $
B. S. R. Kunduri, J. B. H. Baker, J. M. Ruohoniemi, J.‐P. St. Maurice, Y. Nishimura, P. J. Erickson, J. C. Foster, S. E. Milan, K. T. Sterne, E. G. Thomas   +9 more
wiley   +1 more source

The Impact of the 2024 Mother's Day Storm on Aircraft Surveillance Across Europe

Space Weather, Volume 23, Issue 12, December 2025.
Abstract The Mother's day storm from 10–13 May 2024 is one of the most extreme space weather events recorded in recent decades and triggered a strong ionospheric response with various impacts on communication and navigation systems. In this study the impact on the aviation sector, and more specifically air traffic management, is investigated with ...
Erik Schmölter, Jens Berdermann
wiley   +1 more source

Climate Emergency and Different Ways to Fail? The Fermi Paradox, the Simulation Hypothesis, Agency and Hope

Journal for the Theory of Social Behaviour, Volume 55, Issue 4, December 2025.
ABSTRACT Humanity seems stuck on different ways to fail to meet the challenge posed by a declared climate emergency and manifest the problems of ecological breakdown. Rather than reprise these failures, we use the Fermi Paradox and simulation hypothesis to make a simple point about agency. The argument unfolds in two sections.
Jamie Morgan
wiley   +1 more source

First‐Generation Inequalities, Adaptation, and Resilience

Sociological Forum, Volume 40, Issue 4, Page 465-480, December 2025.
ABSTRACT First‐generation college students face systemic barriers to persistence, including lower campus engagement, delayed graduation, and higher departure rates compared to their continuing‐generation peers. While these disadvantages are well documented, less is known about how first‐generation students adapt to institutional contexts laden with ...
Erick Axxe, Jasmine L. Whiteside, Vincent J. Roscigno, Anne McDaniel   +3 more
wiley   +1 more source

Generalizing the similitude approach for laboratory astrophysics through equivalence symmetries for the example of radiative waves. [PDF]

Sci Rep
Tranchant V, Charpentier N, Van Box Som L, Ciardi A, Falize É.   +4 more
europepmc   +1 more source