Nowcasting of Aviation Radiation Using Geospace Environment Properties: A Machine Learning ApproachRadiation exposure at aviation altitudes presents significant health risks to aircrews due to the cumulative effects of ionizing radiation. Physics-based models estimate radiation levels based on…Sanjib K C, Viacheslav M Sadykov, Dustin Kempton·Nov 18, 2025SaveLearn
The Role of Gyrating Ions in Reformation of a Quasi-parallel Supercritical ShockCollisionless shocks in space and astrophysical plasmas mediate energy exchange between charged particles and fields in two or more plasma flows. In this study we analyze the evolution of ion…Hadi Madanian, Terry Z. Liu·Nov 17, 2025SaveLearn
Time-Dependent Radiation Quality Factor <Q> of Galactic Cosmic Rays in Deep Space and Shielding Environments: Modeling and MeasurementsUnderstanding the long-term variation of the galactic cosmic ray (GCR) radiation environment is critical for assessing radiation risks in space exploration missions. In this study, we systematically…Weihao Liu, Mikhail Dobynde, Jingnan Guo et al.·Nov 12, 2025SaveLearn
Monitoring the Solar Wind Before It Reaches L1Space weather predictions of the solar wind impacting Earth are usually first based on remote-sensing observations of the solar disc and corona, and eventually validated and/or refined with in-situ…Erika Palmerio·Nov 11, 2025SaveLearn
Accelerometer Measurements for Orbit and Gravity Recovery: Challenges and Benefits for the BepiColombo MissionThe European Space Agency's BepiColombo mission continues its pioneering voyage to Mercury, the innermost planet of the Solar System. Among the advanced instruments onboard the Mercury Planetary…Alireza HosseiniArani, Stefano Bertone, Daniel Arnold et al.·Nov 10, 2025SaveLearn
Forecasting Thermospheric Density with Transformers for Multi-Satellite Orbit ManagementAccurate thermospheric density prediction is crucial for reliable satellite operations in Low Earth Orbits, especially at high solar and geomagnetic activity. Physics-based models such as TIE-GCM…Cedric Bös, Alessandro Bortotto, Mohamed Khalil Ben-Larbi·Nov 8, 2025SaveLearn
Quasi-constant time gap in multiple rings of elvesWe present evidence that the time delay between the multiple rings of elves is not caused by the ground reflection of the electromagnetic pulse produced by intracloud lightning. To investigate…The Pierre Auger Collaboration, A. Abdul Halim, P. Abreu et al.·Nov 7, 2025SaveLearn
Rebound Suppression Mechanisms of Particle-Filled Flexible Shells for Small Body LandingsThe extremely weak gravity on small bodies makes landers prone to rebound and uncontrolled drift. To mitigate this, the Hayabusa2 mission employed a particle-filled flexible shell, but the coupled…Tongge Wen, Xiaoyu Yang, Sudeshna Roy et al.·Nov 5, 2025SaveLearn
Evolution of an Alfv\'en Wave-Driven Proton Beam in the Expanding Solar WindWe investigate the self-consistent formation and long-term evolution of proton beams in the expanding solar wind using an ensemble of one-dimensional hybrid expanding box simulations. Initial…J. S. Bianco, A. Tenerani, C. Gonzalez et al.·Nov 4, 2025SaveLearn
Ionospheric responses over the Antarctic region to Intense Space Weather events: Plasma Convection vs. Auroral PrecipitationThe present investigation is directed at exploring southern polar ionospheric responses to intense space weather events and their correlations with plasma convection and auroral precipitation. The…Sumanjit Chakraborty, Gopi K. Seemala·Oct 31, 2025SaveLearn
LEVITAS: Levitodynamics for Accurate Individual Particle Sensing in SpaceAccurately observing the rarefied media of the upper atmosphere, exosphere, and planetary and solar system environments and beyond requires highly sensitive metrological techniques. We present the…Rafal Gajewski, Ravindra T Desai, James Bateman et al.·Oct 28, 2025SaveLearn
Terrestrial space weather protection through human-produced mass-loadingWhile humans become more reliant on Earth's space environment, the potential for significant harm from severe space weather continues to grow. As structures from the sun reach Earth's magnetosphere…B. M. Walsh, D. T. Welling, Z. Huang·Oct 22, 2025SaveLearn
Ionization Rate of Interstellar Neutral Helium from New Horizons/SWAP ObservationsInterstellar neutral (ISN) atoms enable studies of the physical conditions in the local interstellar medium surrounding the heliosphere. ISN helium, which is the most abundant species at 1 au, is…Małgorzata Antonik, Paweł Swaczyna, David J. McComas et al.·Oct 20, 2025SaveLearn
Influence of Solar Sails on Magnetic Field Measurements in Space PlasmasSolar sail technology is ready to be deployed in a satellite mission carrying a science-grade magnetometer. In preparation for such a mission, it is essential to characterize the interactions between…Konstantinos Horaites, Juan V. Rodriguez, Ying Liu·Oct 7, 2025SaveLearn
Elucidating the Grey Atmosphere: SHAP Value Analysis of a Random Forest Atmospheric Neutral Density ModelWe apply SHAP (SHapley Additive exPlanations) analysis using the TreeSHAP algorithm to a Random Forest model (RANDM) designed to predict thermospheric neutral density based on solar-terrestrial data.…C. Bard, K. Murphy, A. Halford·Sep 30, 2025SaveLearn
Engaging and Educating Eclipse Observers Through Workshops, Media, Planetarium shows and Citizen ScienceThe Heliophysics Big Year was an extended year where major solar events engaged the public. It included two eclipses (annular on October 14, 2023 and total on April 8, 2024), plus solar max and the…Patricia H. Reiff, Carolyn T. Sumners, Charles H. Gardner et al.·Sep 26, 2025SaveLearn
Graph-based Neural Space Weather ForecastingAccurate space weather forecasting is crucial for protecting our increasingly digital infrastructure. Hybrid-Vlasov models, like Vlasiator, offer physical realism beyond that of current operational…Daniel Holmberg, Ivan Zaitsev, Markku Alho et al.·Sep 23, 2025SaveLearn
The Nature of Turbulence at Sub-Electron Scales in the Solar WindThe nature of turbulence at sub-electron scales has remained an open question, central to understanding how electrons are heated in the solar wind. This is primarily because spacecraft measurements…Shiladittya Mondal, Christopher H. K. Chen, Davide Manzini·Sep 21, 2025SaveLearn
Particle in cell simulation on mode conversion of Saturn's 20 kHz narrowband radio emissionThe Z-to-O mode conversion at the density gradient is the prevailing mechanism of narrowband (NB) radio emission in planetary magnetosphere. Most previous numerical models were for NB emission…Zhoufan Mu, Yao Chen, Tangmu Li et al.·Sep 19, 2025SaveLearn
Minimum Sample Size Calculation for Multivariable Regression of Continuous Outcomes in Chemometrics for Astrobiology and Planetary ScienceOver the last few decades, prediction models have become a fundamental tool in statistics, chemometrics, and related fields. However, to ensure that such models have high value, the inferences that…M. Konstantinidis, E. A. Lalla, S. J. Gonzalez et al.·Sep 17, 2025SaveLearn
A New Mechanism for ULF Wave Modulation of Energetic Electron PrecipitationThe May 2024 geomagnetic superstorm provided the opportunity to explore how strong wave-particle interactions affect energetic electron precipitation under intense driving. Using coordinated…L. Olifer, D. Zhou, M. Patel et al.·Sep 16, 2025SaveLearn
Hybrid Active-Passive Galactic Cosmic Ray Simulator: in-silico design and optimizationHigh-energy heavy-ion particle accelerators have long served as proxies for the harsh space radiation environment, enabling both fundamental life-science research and applied testing of flight…Luca Lunati, Enrico Pierobon, Uli Weber et al.·Sep 16, 2025SaveLearn
Hybrid Active-Passive Galactic Cosmic Ray Simulator: experimental implementation and microdosimetric characterizationSpace radiation is one of the major obstacles to space exploration. If not mitigated, radiation can interact both with biological and electronic systems, inducing damage and posing significant risk…Enrico Pierobon, Luca Lunati, Tim Wagner et al.·Sep 16, 2025SaveLearn
The impact of Alfvenic shear flow on magnetic reconnection and turbulenceMagnetic reconnection is a fundamental and omnipresent energy conversion process in plasma physics. Novel observations of fields and particles from Parker Solar Probe (PSP) have shown the absence of…Tamar Ervin, Alfred Mallet, Stefan Eriksson et al.·Sep 16, 2025SaveLearn
Magnitude of Short-Wavelength Electric Field Fluctuations in Simulations of Collisionless Plasma ShocksLarge-amplitude electrostatic fluctuations are routinely observed by spacecraft upon traversal of collisionless shocks in the heliosphere. Kinetic simulations of shocks have struggled to reproduce…Vadim Roytershteyn, Lynn B. Wilson, Li-Jen Chen et al.·Sep 14, 2025SaveLearn