Results 81 to 90 of about 1,782 (160)

When Laboratory Studies of Plumes Shed the Veil of the Enceladus' Interior

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 11, November 2026.
Abstract Since the discovery by Cassini of plumes of water vapor and icy particles erupting from the South Polar Terrain (SPT) of Enceladus, numerous numerical models have been proposed to explain the mechanism driving these plumes, and how they relate to the thermodynamic conditions inside the underlying crevasses.
Yaël R. A. Bourgeois   +2 more
wiley   +1 more source

Laboratory Experiments Identify Meteoritic Organic Precursors for Chlorinated Compounds Detected by the Sample Analysis at Mars (SAM) Instrument at Gale Crater

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 11, November 2026.
Abstract The Viking missions landed two spacecraft on Mars each equipped with a pyrolysis‐gas chromatograph‐mass spectrometer system capable of detecting signs of life. Although working as intended, detections of chloromethane and dichloromethane were initially attributed to terrestrial contamination.
A. Mojarro   +11 more
wiley   +1 more source

Sulfidation Reaction Mechanisms of Olivine and Diopside at Mercury's Reducing Conditions

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 11, November 2026.
Abstract The surface of Mercury contains elevated amounts of sulfur of up to 4 wt.%. Volcanic degassing of S from the interior of the planet could have initiated sulfidation reactions between the degassed S and surface materials in the planet's past, leading to the observed surface S enrichment.
Rody C. Erftemeijer   +2 more
wiley   +1 more source

Reconstructing Equatorial Electron Flux Measurements From Data Collected at Low‐Earth‐Orbit Resolved in Magnetic Local Time

open access: yesSpace Weather, Volume 24, Issue 11, November 2026.
Abstract We present an ensemble of five artificial neural network (ANN) models, extending and upgrading a previous model that reconstructs >30 keV equatorial electron flux measurements from low‐Earth‐orbit (LEO) satellite observations. We use the global coherent nature of the radiation belts to map data collected from the Polar Orbiting Environmental ...
D. L. Stumbaugh, J. Bortnik
wiley   +1 more source

Influence of Space Weather on Single Event Effects in Aviation When Employing Modern Commercial Sub‐100 nm Electronic Devices

open access: yesSpace Weather, Volume 24, Issue 11, November 2026.
Abstract During November 2025 thousands of commercial aircraft (Airbus A320s) had to be grounded due to the risk of ionizing radiation effects on the avionics system. Safety‐critical systems continue to use modern commercial devices, and therefore an understanding of their responses within enhanced radiation environments is crucial to ensure reliable ...
M. Barker, K. Ryden, C. Dyer, F. Lei
wiley   +1 more source

The Effect of Field Line Tracing Height on Wang‐Sheeley‐Arge Solar Wind Predictions at Earth

open access: yesSpace Weather, Volume 24, Issue 11, November 2026.
Abstract A key component of the widely used Wang‐Sheeley‐Arge model is the tracing of magnetic field lines in the solar corona, as that largely determines the modeled open/closed field regions and in turn the predicted large‐scale solar wind structure. However, small closed field regions interspersed among the open field lines inside coronal holes (CHs)
Satabdwa Majumdar   +3 more
wiley   +1 more source

Deep Learning—Based Airglow Fusion and Forecasting for Equatorial Plasma Bubble Monitoring and GNSS Scintillation Prediction

open access: yesSpace Weather, Volume 24, Issue 11, November 2026.
Abstract Equatorial plasma bubbles (EPBs) are major low‐latitude ionospheric irregularities that can cause scintillation and degrade Global Navigation Satellite System (GNSS) performance. Existing amplitude‐scintillation prediction methods primarily use historical GNSS observations and ionospheric parameters, but rarely incorporate the evolving spatial
Haoyang Guo   +9 more
wiley   +1 more source

Exploring Jupiter's Mid‐Latitude Dusk Magnetopause: The Impact of Magnetic Reconnection

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract The Juno mission has elucidated magnetosphere processes, structure, and dynamics via multi‐instrument plasma and magnetic field observations. In this study, these instruments are used to identify magnetic reconnection during the Juno extended mission from a survey of 490 magnetopause crossings at the mid‐latitude southern dusk magnetopause ...
J. Montgomery   +8 more
wiley   +1 more source

Seasonal Variations of the Martian Middle‐Atmosphere CO2/Ar Ratio Inferred From MAVEN/NGIMS Observations

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract The carbon dioxide (CO2)/argon (Ar) ratio is a useful tracer of atmospheric circulation on Mars, but it remains observationally poorly constrained in the middle atmosphere, where large‐scale circulation occurs. In this study, we infer the CO2/Ar ratio at the homopause, which marks the upper boundary of the well‐mixed Martian middle atmosphere,
JunFeng Qin   +4 more
wiley   +1 more source

Gamma‐Ray Glows Commonly Followed by Lightning: A Statistical Study of the Spatio‐Temporal Relationship

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Gamma‐ray glows are prolonged enhancements of gamma rays from thunderclouds, which are often linked to large‐scale electric fields rather than individual lightning. The link between glows and lightning remains poorly understood. Here, we analyzed 300 glows observed during the ALOFT aircraft campaign and optical lightning detected by GLM.
Chu‐Nan Zhang   +10 more
wiley   +1 more source

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