179 papers
Space physics explores the dynamic environment surrounding our planet and the wider solar system, focusing on how charged particles, magnetic fields, and solar winds interact with celestial bodies. This field helps us understand phenomena like auroras, space weather that can disrupt satellites, and the fundamental behavior of plasma in the vacuum of space. It bridges the gap between astronomy and particle physics, revealing the invisible forces that shape our cosmic neighborhood.
At Gist.Science, we process every new preprint in this category as it appears on arXiv, ensuring you get immediate access to the latest research. For each paper, we provide both a detailed technical summary for experts and a plain-language explanation that makes complex concepts understandable for everyone. Below are the latest space physics papers from arXiv, curated and simplified for your reading.
This paper analyzes 623 bolide events from 2007 to 2025 to demonstrate that infrasound detectability is primarily governed by entry geometry, specifically favoring steeper angles and lower-altitude energy deposition, while atmospheric propagation and energy levels act as secondary modulating factors.
This paper introduces kinetic pressure-strain diagnostics and a "kinetic strain-rate" tensor to resolve the velocity-space origins of energy evolution in multi-population plasmas, demonstrating their utility in isolating distinct particle contributions during magnetic reconnection.
This paper analyzes the static and dynamic torque generation capabilities of the CABLESSail concept, demonstrating how tensioning cables along flexible booms induces bending deformations to create solar radiation pressure imbalances for effective momentum management, even in the presence of membrane shape uncertainties.
This paper presents an enhanced Flux-Corrected Transport-based hydrodynamic model for plasmasphere refilling that incorporates self-consistent electron temperature evolution to provide a more physically complete representation of ion transport dynamics and multi-stage recovery processes.
This paper proposes and demonstrates a prototype coherence-based framework for the Vera C. Rubin Observatory's LSST to identify astrobiological and technosignature candidates by treating them as structured departures from natural astrophysical manifolds in multiband color-variability space, rather than as isolated photometric outliers.
This paper introduces a roughness-based extension of the gas-surface scattering kernel formalism that recursively lifts local atomic-scale interactions to larger geometric scales via multi-reflection operators, establishing conditions under which the resulting global kernels preserve essential physical properties like reciprocity and normalization.
This paper presents and validates a cross-spectral technique capable of estimating sub-frame relative time delays between optical intensity signals with better than 50-microsecond accuracy, a method developed for dynamic auroral imaging but applicable to various camera timing calibration and time-varying signal measurement tasks.
This paper presents a multi-instrumental analysis of the February 2025 Falcon 9 upper-stage re-entry, combining optical and radar data to characterize fragment trajectories, plasma dynamics, and echo types, thereby demonstrating the feasibility of using global multistatic meteor radar systems to detect the atmospheric re-entry of various spacecraft.
This paper presents the first coordinated optical and infrasound observations of a centimeter-scale, volatile-rich earthgrazing fireball, demonstrating that volatile release enhances hydrodynamic shielding to sustain a detectable cylindrical shock wave at thermospheric altitudes, a phenomenon that classical gas dynamics alone cannot explain.
Using Magnetospheric Multiscale (MMS) mission data, this paper presents a statistical study revealing that in turbulent Earth's magnetotail reconnection, electron perpendicular motion dominates energy dissipation through a bidirectional energy exchange with a slight positive bias, driven by mechanisms such as parallel electric fields, Fermi energization, betatron heating, and polarization drift.