Results 121 to 130 of about 36,417 (233)
Cryptic Paleomagnetic Complexity in the Ediacaran Egersund Dikes
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.Abstract The Ediacaran Period (∼635–539 Ma) represents a critical interval in Earth's evolution, yet its paleomagnetic record remains complex and contentious. One of the few Ediacaran paleomagnetic results from Baltica considered robust is a pole from the ca.
Yi Xue +5 more
wiley +1 more source
Filament Formation due to Diffusive Instabilities in Dusty Protoplanetary Disks
The Astrophysical JournalWe report the finding of a new, local diffusion instability in a protoplanetary disk which can operate in a dust fluid, subject to mass diffusion, shear viscosity, and dust–gas drag, provided the diffusivity, viscosity, or both, decrease sufficiently ...
Konstantin Gerbig +2 more
doaj +1 more source
Detection of Equatorial Plasma Bubbles Using the COSMIC‐2 Rate of TEC Index
Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.Abstract Equatorial plasma bubbles (EPBs) are large‐scale plasma depletion structures that can disrupt Global Navigation Satellite Systems (GNSS) and other space‐based technologies. Several instruments have been employed to study EPB dynamics, with Total Electron Content (TEC) and Rate of TEC change Index (ROTI) data standing out as valuable parameters
Ana L. Christovam +2 more
wiley +1 more source
Angewandte Chemie, Volume 138, Issue 17, 20 April 2026.This study explores the origins of life by linking prebiotic chemistry, the emergence of information‐carrying molecules such as RNA and proteins, and philosophical questions about consciousness. The study emphasizes the role of molecular evolution in the Central Dogma and provides insights into the chemical origins of biology and the basis of life's ...
Harald Schwalbe +5 more
wiley +2 more sources
Diffusive Instabilities in Dusty Disks: Linear Growth and Nonlinear Breakdown
The Astrophysical JournalWe revisit the diffusive instability in dusty disks that arises when the dust mass diffusivity and/or viscosity decrease sufficiently steeply with increasing dust density. Our updated model includes an incompressible viscous gas that responds azimuthally
Konstantin Gerbig, Min-Kai Lin
doaj +1 more source
Non‐Migrating Thermal Tides in the Martian Lower Atmosphere Observed by EMM/EMIRS
Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.Abstract Thermal tides significantly influence Martian atmospheric dynamics and radiative transfer. However, the excitation mechanisms of non‐migrating tides, exhibiting diverse spatial structures, remain poorly understood due to the limited number of observations.
Cong Sun +13 more
wiley +1 more source
Aspect Asymmetry in Martian Gullies: A Topographic Signature of Their Formation Process?
Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.Abstract On Mars, erosional‐depositional landforms named gullies provide natural experiments for studying the topographic signature of the processes that act on hillslope evolution. High‐resolution topographic data were used to quantitatively compare the steepness of opposing walls in gully alcoves incised into ice‐rich slopeside mantling deposits.
A. Noblet, G. R. Osinski, S. J. Conway
wiley +1 more source
A Relativistic Formula for the Multiple Scattering of Photons
The Astrophysical Journal LettersWe have discovered analytical expressions for the probability density function (PDF) of photons that are multiply scattered in relativistic flows, under the assumption of isotropic and inelastic scattering.
Rohta Takahashi +8 more
doaj +1 more source
Journal of Advances in Modeling Earth Systems, Volume 18, Issue 5, May 2026.Abstract The launch of the Tropospheric Emissions: Monitoring of Pollution (TEMPO) mission in 2023 marked a new era in air quality monitoring by providing high‐frequency, geostationary observations of column NO2 across most of North America. In this study, we present the first implementation of a TEMPO NO2 data assimilation system using the Joint ...
Maryam Abdi‐Oskouei +36 more
wiley +1 more source
Space Weather, Volume 24, Issue 5, May 2026.Abstract The ionospheric Total Electron Content (TEC) is a key parameter for characterizing the ionospheric properties. In this study, an efficient multivariable time series prediction model, TEC‐Series Core Fusion and efficient multivariable time series (TEC‐SOFTS), was constructed by combining multiple geomagnetic and solar activity indices ...
Chen Chen +6 more
wiley +1 more source