Solar Energetic Particle Forecasting with Multi-Task Deep Learning: SEPNETSolar energetic particle (SEP) events pose severe threats to spacecraft, astronaut safety, and aviation operations. Accurate SEP forecasting remains a critical challenge in space weather research due…Yian Yu, Yang Chen, Lulu Zhao et al.·May 1, 2026SaveLearn
Radial Dependency of ICME-associated Particle Acceleration Processes: Statistical Multipoint Observations from 2016-2023During the propagation of interplanetary coronal mass ejections (ICMEs), evolution of the ICME-driven shock along with interactions with other solar wind structures, planetary bodies, and general…Malik H. Walker, Robert C. Allen, George C. Ho et al.·Apr 30, 2026SaveLearn
First Observation of Multiple Very-Near-Earth Reconnection Events During a Single Storm Main PhaseFor the first time, this paper presents three very-near-Earth reconnection (VNERX) events observed within the same 12-hour-long storm main phase. The THEMIS inner probes observed the hallmarks of…Fekireselassie Beyene, Vassilis Angelopoulos, Christine Gabrielse et al.·Apr 29, 2026SaveLearn
Properties of the Stormtime Plasma Sheet at the Lunar DistanceThe electron fluxes at energies E>100\,keV are shown to be vanishing in the quiet time plasma sheet at geocentric distance of 60 Earth's radii (RE) where the Moon traverses the magnetotail.…A. Runov, V. Angelopoulos, A. V. Artemyev et al.·Apr 28, 2026SaveLearn
Solar Energetic Particle Reflection by Precursor ICMEs: Multi-spacecraft Observations of Bi-Directional Electron Beams at 1 AUWe present case studies of two impulsive solar energetic electron (SEE) events during which particles at energies from 1-600 keV were detected by THEMIS-ARTEMIS orbiting the Moon, Wind at Earth's…Lucas Liuzzo, Wenwen Wei, Andrew R. Poppe et al.·Apr 27, 2026SaveLearn
Revisiting the Role of Plasma Sheet Bubbles in Stormtime Energy Transport Using RCM-IPlasma sheet bubbles, defined as entropy-depleted flux tubes, are widely regarded as an efficient mechanism for transporting plasma into the inner magnetosphere during geomagnetic storms. Equilibrium…Sina Sadeghzadeh, Frank Toffoletto, Vassilis Angelopoulos et al.·Apr 24, 2026SaveLearn
Electron Heat Flux and Whistler Instability in the Earth's MagnetosheathDespite heat flux's role in regulating energy conversion in collisionless plasmas, its properties and evolution in the magnetosheath downstream of the Earth's bow shock are scarcely explored.…Ida Svenningsson, Emiliya Yordanova, Yuri V. Khotyaintsev et al.·Apr 24, 2026SaveLearn
On the curlometer measurement of field-aligned and perpendicular currents in low Earth orbit: Swarm observations and whole geospace simulationsMeasuring field-aligned currents (FACs) using magnetic field observations provides a powerful means to probe the multi-scale interactions between the magnetosphere, ionosphere and thermosphere. In…R Gajewski, RT Desai, B Hnat et al.·Apr 20, 2026SaveLearn
Multi-Fidelity Monte-Carlo Estimation of Satellite Drag in Very-Low-Earth OrbitVery-low-Earth orbit drag uncertainty quantification in the rarefied/transitional Knudsen-number regime requires estimating not only the mean drag coefficient but also higher-order moments under…Jovan Boskovic, Marcel Pfeifer, Andrea Beck·Apr 20, 2026SaveLearn
Inferring lunar wake potentials from electron phase space densitiesInferring electric potentials from electron phase space density measurements in the lunar wake is complicated by two challenges: the asymmetry between the sunward and anti-sunward sides of the wake…Xin An, Shaosui Xu, Vassilis Angelopoulos et al.·Apr 20, 2026SaveLearn
Automated Classification of Plasma Regions at Mars Using Machine LearningThe plasma environment around Mars is highly variable because it is strongly influenced by the solar wind. Accurate identification of plasma regions around Mars is important for the community…Yilan Qin, Chuanfei Dong, Hongyang Zhou et al.·Apr 18, 2026SaveLearn
MMS Insights into CME Driven Sub-Alfv\'enic Solar Wind at 1 AUWe report the properties of electron distributions and turbulence during a Coronal Mass Ejection (CME) in April 2023 observed by Magnetospheric Multiscale (MMS). The CME exhibits a clear sheath and…Harsha Gurram, Li-Jen Chen, Matthew R. Argall et al.·Apr 13, 2026SaveLearn
Ion pickup and velocity space thermalization at outer planet moonsIon pickup at the outer planets' active moons is a fundamental plasma process in which newly ionized particles from moon exospheres interact with the ambient corotating plasma and are accelerated to…Xin An, Miranda Chang, Hao Cao et al.·Apr 11, 2026SaveLearn
Solar Wind Classifications at Mars using Machine Learning TechniquesUnderstanding solar wind variability throughout the heliosphere is essential for fundamental space physics and future exploration of the Moon and Mars. The Mars Atmosphere and Volatile EvolutioN…Catherine E. Regan, Silvia Ferro, Austin M. Smith et al.·Apr 9, 2026SaveLearn
Proton Temperature Anisotropy Across Interplanetary Shocks: A Statistical Analysis with WIND observationsInterplanetary (IP) shocks efficiently modify the proton temperature anisotropy of the solar wind. Analyzing ~800 IP shocks observed by the Wind spacecraft from 1997-2024, we present a statistical…Zeping Jin, Lingling Zhao, Xingyu Zhu et al.·Apr 2, 2026SaveLearn
Closed-Form Solutions to the Fokker-Planck Equation for Orbital Uncertainty PropagationNon-Gaussian tails dominate collision probability estimates in conjunction assessment, yet capturing them without Monte Carlo sampling is challenging, especially when process noise is included. We…Jose Antonio Rebollo, Rafael Vazquez, Claudio Bombardelli·Mar 31, 2026SaveLearn
Turbulent dynamo in the terrestrial magnetosheathDynamo action refers to energy exchange processes through which magnetic fields are generated at the expense of kinetic energy of the plasma flows. Dynamos can generate magnetic fields across scales…Zoltán Vörös, Owen Wyn Roberts, Yasuhito Narita et al.·Mar 28, 2026SaveLearn
Analytical Scaling of Relativistic Drag in the Interstellar MediumThis paper develops an analytical framework for the retarding forces on macroscopic spherical probes travelling through the interstellar medium (ISM) at relativistic speeds (0.1c to 0.99c).…Lucky Gangwar·Mar 27, 2026SaveLearn
Solar Wind Reflected Ion Properties at Earth's Bow Shock: Dependence on Upstream Conditions and Shock GeometrySolar wind ion reflection at collisionless shocks regulates foreshock plasma dynamics, yet the quantitative dependence of reflected ion properties on upstream and shock-related parameters remains…Runyi Liu, Terry Liu, Kun Zhang et al.·Mar 26, 2026SaveLearn
New Constraints on the Jovian Narrowband Radio Components from Juno/Waves Observations and 3D Geometrical SimulationsMeasurements of Waves instrument onboard the Juno spacecraft suggest that narrowband kilometric radiation (nKOM; 20-141 kHz) and narrowband low-frequency radiation (nLF; 5-70 kHz) are generated…Boudouma Adam, Zarka Philippe, Louis Corentin et al.·Mar 19, 2026SaveLearn
Trapped Proton Environment in Medium-Earth Orbit (2000-2010)This report describes the method used to derive fluxes of the trapped proton belt along the GPS orbit (i.e., a Medium-Earth Orbit) during 2000-2010, a period almost covering a solar cycle. This…Yue Chen, Reinhard H. W. Friedel, Richard M. Kippen·Mar 18, 2026SaveLearn
Compressive Structures in the Foreshock of Collisionless ShocksCollisionless shocks are fundamental accelerators of energetic particles; yet, the observations of nonlinear foreshock structures, which are essential in acceleration processes, differ significantly…Savvas Raptis, Domenico Trotta, Drew L. Turner et al.·Mar 18, 2026SaveLearn
Ground Effects of the 2024 Mother's Day Superstorm: A Multi-source Observational AnalysisThis report presents a brief review of the 2024 Mother's Day superstorm and its impacts on the near-Earth space environment and the ground-level effects, with emphasis on the latter. Drawing upon…Yue Chen, Kyoung Ho Kim, Steven K. Morley et al.·Mar 16, 2026SaveLearn
Automatic Characterization of Mid-latitude Multiple Ionospheric Plasma Structures from All-sky Airglow Images using Deep Learning TechniqueThe F-region ionospheric plasma structures are propagating high and or low electron density regions in the Earth ionosphere. These plasma structures can be observed using ground based all-sky airglow…Jeevan Upadhyaya, Satarupa Chakrabarti, Rahul Rathi et al.·Mar 16, 2026SaveLearn
Spacecraft wakes in the solar windThe solar wind flow creates a wake behind any spacecraft immersed in it. We study the properties of this wake using the spherical electrostatic probes of the Electric Fields and Waves (EFW)…Anders I. Eriksson, Yuri Khotyaintsev, Per-Arne Lindqvist·Mar 13, 2026SaveLearn