Results 41 to 50 of about 3,316 (179)

A Global Map of Average Electron Densities in the Magnetosphere of Saturn

Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.
Abstract Measurements from the Cassini Radio and Plasma Wave Science (RPWS) experiment obtained during the entire orbital phase of the Cassini mission around Saturn (13.2 years) are processed into a meridional map of plasma densities, comprising the innermost region of the ring ionosphere, the Enceladus plasma torus, and the outer magnetosphere, up to ...
Ulrich Taubenschuss, Ondřej Santolík, David Píša, Masafumi Imai, Georg Fischer, Siyuan Wu, Michiko W. Morooka, William S. Kurth   +7 more
wiley   +1 more source

Geysers' Dust Dynamics Inside the Hill Sphere of Enceladus

Geophysical Research Letters
In this work, we study the trajectories of the dust particles ejected in the geysers of the moon Enceladus, inside its Hill sphere, where its gravitational influence dominates. Our goal is to determine the properties of the particles that escape from the
Alberto Flandes, Pedro Elías Mirón‐Enríquez, Alma Karen Ramírez‐Cabañas   +2 more
doaj   +1 more source

An Inversion of Magnetic Field Measurements to Constrain the Depth, Thickness, and Conductivity of Europa's Ocean

Journal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.
Abstract The Galilean satellite Europa is a primary candidate for the study of ocean worlds. In anticipation of NASA's Europa Clipper and ESA's JUICE missions, we revisit the magnetic field measurements of the Galileo spacecraft. The ocean's induction response is governed by its induction amplitude and phase shift, which are a function of the ocean ...
Jason Winkenstern, Joachim Saur, Sebastian Cervantes   +2 more
wiley   +1 more source

The Effect of Salinity on Ocean Circulation and Ice–Ocean Interaction on Enceladus

The Planetary Science Journal
Observational data suggest that the ice shell on Enceladus is thicker at the equator than at the pole, indicating an equator-to-pole ice flow. If the ice shell is in an equilibrium state, the mass transport of the ice flow must be balanced by the ...
Yaoxuan Zeng, Malte F. Jansen
doaj   +1 more source

Antum Crater: A Window Into Ganymede's Icy Evolution

Journal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.
Abstract Located within the extensive dark terrain of Marius Regio, in the anti‐Jovian trailing quadrant of Ganymede, Antum crater is marked by dark‐rayed ejecta that obscure older features and reshape the surrounding landscape. This study investigates Antum and its geological context using optical and infrared data from the Voyager and Galileo ...
Federico Tosi, Federico Colaiuta, Valentina Galluzzi, Elena Martellato, Francesca Zambon, Katrin Stephan, Namitha R. Baby, Lorenzo Bruzzone, Pasquale Palumbo, Giuseppe Piccioni   +9 more
wiley   +1 more source

Enceladus’s Tidal Heating: A Simple Approach

The Planetary Science Journal
Saturn’s moon Enceladus has a global ocean that is covered by an ice shell. The moon’s eccentric orbit forces the shell to librate, which distorts the shell and thereby generates heat.
Yoram Lithwick
doaj   +1 more source

Microstructure Controls Sublimation Timescales of Exposed Salt‐Rich Ices on Icy Worlds

Journal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.
Abstract Salt‐rich water ice at the surfaces of icy worlds, for example, Europa, Enceladus, and Ceres, is of particular interest for Solar System exploration as it can represent a record of the chemistry and potential habitability of subsurface liquid water. Endogenic salts can originate by gradual freezing of fluids within outer ice layers, or through
Hannah E. Chinnery, Mark G. Fox‐Powell
wiley   +1 more source

Enceladus’s Limit Cycle

The Astrophysical Journal
Enceladus exhibits some remarkable phenomena, including water geysers spraying through surface cracks, a global ice shell that is librating atop an ocean, a large luminosity, and rapid outward orbital migration.
Peter Goldreich, Yoram Lithwick, Jing Luan   +2 more
doaj   +1 more source

JWST/NIRSpec Detection of Complex Structures in Saturn's Sub‐Auroral Ionosphere and Stratosphere

Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.
Abstract Past observations of Saturn's sub‐auroral ionosphere have provided no detailed longitudinal information, and variations in underlying stratospheric emission from methane fluorescence have never been resolved spatially. Here, we present the first near‐infrared observations of Saturn using JWST's NIRSpec‐IFU, revealing the 2.8–5.2 micron ...
Tom S. Stallard, Luke Moore, Henrik Melin, Omakshi Agiwal, M. Nahid Chowdhury, Rosie E. Johnson, Katie L. Knowles, Emma M. Thomas, Paola I. Tiranti, James O’Donoghue, Khalid Mohamed, Ingo Mueller‐Wodarg, Leigh Fletcher, Imke de Pater, Thierry Fouchet, Sarah V. Badman   +15 more
wiley   +1 more source

Water Transport from Enceladus to the Rings

The Planetary Science Journal
Enceladus continuously ejects approximately 300 kg s ^−1 of water vapor from its south polar regions, forming an extensive neutral gas torus around Saturn.
Ian-Lin Lai, Hua-Shan Shih, Wei-Ling Tseng, Wing-Huen Ip, Jong-Shinn Wu   +4 more
doaj   +1 more source