Impact of May 2024 ICME Event on Martian UV Dayglow Emissions using MAVEN/IUVS and EMM/EMUS ObservationsWe present first near-simultaneous observations of large-scale spatial response of the Martian H Lyman-α and atomic oxygen dayglow emissions (O(3S) 130.4 nm and O(5S) 135.6 nm) during May 2024…Aadarsh Raj Sharma, Vaghamshi Dhruv Dhaneshbhai, Lot Ram et al.·Jul 8, 2026SaveLearn
Simultaneous TRACERS and THEMIS Observations of Reversed Cusp Ion Dispersions and Dual-Lobe ReconnectionWe present observations from two consecutive TRACERS-2 orbits through the northern low-altitude cusp. During the first crossing, TRACERS-2 observed reversed cusp ion dispersion and sunward…M. Øieroset, S. A. Fuselier, J. B. Bonnell et al.·Jul 7, 2026SaveLearn
Non-thermal plasma density redistribution in planetary magnetospheres due to ion-cyclotron wavesPlanetary magnetospheres exhibit diverse environments where Ultra-low frequency (ULF) pulsations induce nonlinear ponderomotive effects. Since suprathermal populations modeled by Kappa distributions…Joaquín Espinoza-Troni, Felipe A Asenjo, Pablo S Moya·Jul 6, 2026SaveLearn
Evolution and Impact of Switchbacks Throughout the HeliosphereMagnetic switchbacks are large-amplitude fluctuations in the interplanetary magnetic field, and appear frequently in the near-Sun solar wind explored recently by Parker Solar Probe: these new…Alfred Mallet, Chen Shi, Anna Tenerani et al.·Jul 2, 2026SaveLearn
Energetic particle-mediated interplanetary shocks observed by Solar OrbiterContext: In collisionless shocks, energetic particles can carry sufficient pressure to modify the upstream plasma and the shock structure itself, a regime often invoked in theories of cosmic-ray…D. Trotta, D. Lario, B. Reville et al.·Jul 2, 2026SaveLearn
VLBI Tracking of the JUICE Mission: Two Years of Cruise Phase Operations and Performance AnalysisThe JUpiter ICy moons Explorer (JUICE) mission, launched by the European Space Agency (ESA) in April 2023, represents one of the most ambitious deep space exploration endeavours targeting…Oliver James White, Guifre Molera Calves, Jasper Edwards et al.·Jul 1, 2026SaveLearn
Cometary ion dynamics at a weakly outgassing cometThe ESA/Rosetta mission escorted comet 67P/Churyumov-Gerasimenko for two years, exploring its plasma environment across diverse outgassing conditions. Plasma density observations from the Rosetta…Victor Steinwand, Peter Stephenson, Zoe Lewis et al.·Jun 30, 2026SaveLearn
A new model for long-term forecasting of Galactic cosmic raysThe modulation of galactic cosmic rays, driven by the evolution of the heliospheric magnetic field, strongly influences the intensity of cosmic rays reaching near-Earth space. Characterizing this…David Pelosi, Fernando Barão, Bruna Bertucci et al.·Jun 30, 2026SaveLearn
Extreme, transient bursts of energy in the auroral ionosphere. II. A magnetotail dipolarization eventWe report ground-based coherent VHF radar observations of extreme turbulent field-structures detected in coincidence with a magnetospheric substorm-associated magnetotail dipolarization. The…Magnus F Ivarsen, Yukinaga Miyashita, Brian Pitzel et al.·Jun 30, 2026SaveLearn
Extreme, transient bursts of energy in the auroral ionosphere. I. Predictive radar trackingThree-meter Farley-Buneman irregularities observed by the ICEBEAR VHF radar organize into km-scale clusters whose apparent motion is governed by the electric field mapped from the magnetosphere.…Magnus F Ivarsen, Jean-Pierre St-Maurice, Yukinaga Miyashita et al.·Jun 30, 2026SaveLearn
Excursion-set structure factor of the auroral electric fieldWe treat coherent radar echoes from aurorae as a finite point process and measure its structure factor S(k) from pairwise echo separations. Backscatter requires electron drifts to exceed the…Magnus F Ivarsen, Kaili Song, Jean-Pierre St-Maurice et al.·Jun 29, 2026SaveLearn
Wave Activity at MHD-ion Scales Associated with SwitchbacksMagnetic switchbacks (SB) -- the localized magnetic structures with magnetic field direction inclined at an angle θ relative to the background B0 -- in the young solar wind have been associated…Kyung-Eun Choi, Oleksiy V. Agapitov, Forrest Mozer et al.·Jun 26, 2026SaveLearn
Magnetic Cloud Boundary Identification Using a Local-Normalized Magnetic Field ParameterDue to the lack of quantitative and reproducible criteria for identifying magnetic cloud (MC) boundaries, we propose a parameter that characterizes short-timescale variability in magnetic field…Ziwei Huang, Zhenjun Zhou, Wei Su et al.·Jun 25, 2026SaveLearn
An extended scattering kernel formalism for multi-scale gas-surface dynamicsGas-particle interactions with non-absorbing surfaces are commonly described using the scattering-kernel formalism. In this framework, an operator K maps incident velocity distributions to…Sabin-Viorel Anton, Bernardo Sousa Alves, Christian Siemes et al.·Jun 25, 2026SaveLearn
The Billion Dollar Surprise: How Solar Cycle 25 Cut Satellite Lifetimes in LEOSolar Cycle 25 has run far stronger than the 2019 consensus forecast issued by the NOAA/NASA/ISES prediction panel, with densities in low Earth orbit from 2022-2026 holding at 2-3x the predicted…Scott Shambaugh·Jun 23, 2026SaveLearn
Properties and Radial Evolution of Solar Wind Turbulence Near Mercury's OrbitWe present a comprehensive statistical study of the radial evolution of solar wind turbulence near Mercury's orbit using long-term magnetic field measurements from the MESSENGER mission. Owing to…Xinmin Li, Chuanfei Dong, Lina Z. Hadid et al.·Jun 23, 2026SaveLearn
Automatic Identification of Magnetospheric Regions using Supervised Machine Learning ModelsWe present an automated approach for identifying magnetospheric regions using supervised machine learning techniques applied to Magnetospheric MultiScale mission data. Our method utilizes ion energy…Narges Ahmadi, Robert Ergun, Xiangning Chu et al.·Jun 23, 2026SaveLearn
Emissivity of oxidizing titanium in simulated atmospheric entry flowsThe aerothermal demise of titanium components plays a critical role in the uncontrolled re-entry of space debris from low-Earth orbit. Exposure to high temperatures and dissociated oxygen…Andrea Fagnani, Bernd Helber, Annick Hubin et al.·Jun 16, 2026SaveLearn
High-energy Particle Transport in Three-dimensional Anisotropic Turbulent Magnetic FieldsThe understanding and modeling of high-energy particles transport in turbulent magnetic fields is an important open question in space- and astrophysics. The multiscale, nonlinear nature of…Daniela Maci, Rony Keppens, Fabio Bacchini·Jun 16, 2026SaveLearn
Deflective Sunshades: conceptual design and origami-inspired folding strategySpace-based solar radiation management has been proposed as a direct means of modulating Earth's radiative balance by reducing incident solar flux. A prominent concept consists of large sunshades…Benedetta Marazzato, Jonas Seiler, Harry Holt et al.·Jun 15, 2026SaveLearn
Beyond Mean Solar Wind Conditions: Turbulence-Aware Forecasting of the AE IndexThe auroral electrojet (AE) index is a key indicator of high latitude geomagnetic activity and is widely used in operational space weather monitoring, yet forecasting AE from upstream solar wind…Cara L. Waters, Christopher H. K. Chen, Mathew J. Owens·Jun 15, 2026SaveLearn
Direct Observations of Magnetic Reconnection in the Solar Wind Current Sheets near MarsMagnetic reconnection is a fundamental and ubiquitous process in astrophysical plasmas that converts magnetic energy into plasma kinetic and thermal energy. Throughout the heliosphere, the solar wind…Chi Zhang, Chuanfei Dong, Xinmin Li et al.·Jun 15, 2026SaveLearn
Contemporaneous Appearances of Auroral Spiral and Transpolar Arc: Polar UVI Observations and Global MHD SimulationsA local vortex-structured aurora and a large-scale transpolar arc (TPA) were contemporaneously observed by the Polar ultraviolet imager (UVI) during the late recovery phase of a substorm, and the…Motoharu Nowada, Yukinaga Miyashita, Aoi Nakamizo et al.·Jun 13, 2026SaveLearn
Investigating potential benefits of future sub-L1 missions with STEREO-AWe present the first statistical study of geomagnetic storm forecasting using in situ data from the STEREO-A spacecraft as a sub-L1 monitor. Between November 2022 and June 2024, STEREO-A crossed the…Eva Weiler, Emma E. Davies, Christian Möstl et al.·Jun 12, 2026SaveLearn
Plasma frequency waves in Earth's electron foreshockAt Earth's quasi-perpendicular bow shock, electrons can be reflected and accelerated to high velocities, forming beams. These beams excite Langmuir and beam-mode waves, which can then be…Daniel B. Graham, Yuri V. Khotyaintsev, Mats André et al.·Jun 10, 2026SaveLearn