Results 41 to 50 of about 130,149 (150)

Exploring Enceladus's Interior Structure Using Electromagnetic Induction

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Electromagnetic (EM) sounding can constrain the electrical structure of Enceladus and, in turn, the salinity of its ocean and the porosity, fluid content, and thermal state of its hydrothermally active core. Here, we assess the feasibility of EM sounding at Enceladus using both global (orbiter) and local (lander) EM induction transfer ...
Alexander Grayver, Joachim Saur
wiley   +1 more source

Deuterated Water Ice on the Satellites of Saturn

The Planetary Science Journal
The deuterium-to-hydrogen ratio in water ice in a planetary body carries important information on the history of water processing and delivery in the protostellar nebula.
Michael E. Brown, Samantha K. Trumbo, M. Ryleigh Davis, Swaroop Chandra   +3 more
doaj   +1 more source

Shallow Impact Craters Suggest Titan Stores Methane in an Insulating Clathrate Crust

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Multiple lines of evidence suggest that a methane‐clathrate crustal layer exists in Titan. However, we have not directly confirmed the existence or thickness of this hypothesized layer, a potentially important methane reservoir. Here, we model impact crater formation and subsequent viscoelastic evolution in Titan's ice shell with methane ...
L. R. Schurmeier, S. Wakita, G. E. Brouwer, J. M. Soderblom, B. C. Johnson, C. D. Neish, J. K. Steckloff, J. P. Kolpin   +7 more
wiley   +1 more source

Saturnian Irregular Satellites as a Probe of Kuiper Belt Surface Evolution

The Planetary Science Journal
We present the JWST NIRSpec PRISM 0.7–5.3 μ m spectra of Albiorix and Siarnaq and the NIRSpec G235H/G395M 1.7–5.3 μ m spectra of Phoebe, the three largest Saturnian irregular satellites.
Matthew Belyakov, Michael E. Brown
doaj   +1 more source

Comprehensive Characterization of Water Group Ion Composition and Distributions in Saturn's Magnetosphere With Cassini Plasma Spectrometer Data

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Saturn's magnetosphere is continuously supplied with neutrals from the Enceladus plume and the icy rings, which undergo ionization and charge‐exchange to form a complex water‐group plasma environment. While the Cassini Plasma Spectrometer (CAPS) instrument has provided extensive compositional information, detailed separation of individual ...
Thomas K. Kim, D. B. Reisenfeld, R. J. Wilson, H. T. Smith, A. K. Woodson, F. Allegrini, R. W. Ebert, M. G. Henderson, P. K. Kollmann, G. Livadiotis, G. Nicolaou, J. R. Szalay, P. W. Valek, A. Masters   +13 more
wiley   +1 more source

Lyα Emissions from Titan’s Atmosphere and Exosphere

The Planetary Science Journal
From 2004 to 2017, the Cassini/UVIS instrument observed Titan’s Ly α airglow from Titan’s atmosphere and exosphere, helping to characterize Titan’s H population. Most Ly α observations remain unanalyzed. Using data from the T10 Titan flyby, we analyze Ly
Devin Hoover, Panayotis Lavvas, Tommi Koskinen, Nathan Le Guennic, Dolon Bhattacharyya, Peter Stephenson   +5 more
doaj   +1 more source

Modeling Ganymede's Surface Charging in Preparation for the JUICE Mission

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract The European Space Agency's (ESA) JUICE mission (JUpiter ICy moons Explorer) is en route to the Jovian system to characterize Ganymede's subsurface ocean. Determining the ocean's conductivity and depth requires precise measurements of its induced magnetic field at the position of JUICE.
Betty Pei‐Chun Tsai, Elias Roussos, Ronan Modolo, Mika K. G. Holmberg, Xianzhe Jia, Tom Nordheim, Sachin Alexander Reddy, Norbert Krupp, Markus Fränz, Yasuhito Narita, Christina Plainaki   +10 more
wiley   +1 more source

Investigating the Detectability of Body Wave Phases From Tidal Ice Cracking Events on Titan With the Dragonfly Short‐Period Seismometer

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Detecting seismic activity on Saturn's icy moon Titan during the Dragonfly mission could provide crucial information on its internal structure. The geological complexity of the moon's surface suggests significant cyclic tidal deformation, likely leading to the fracturing of the ice shell.
L. Delaroque, T. Kawamura, A. Lucas, S. Rodriguez, K. Onodera, H. Shiraishi, R. Yamada, S. Tanaka, M. P. Panning, R. D. Lorenz   +9 more
wiley   +1 more source

Phase‐Space Synchronization Driven by Moon‐Magnetosphere Coupling in Gas Giants

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract We present a new theoretical framework to describe the rapid and spatially localized loss of energetic particles in planetary radiation belts, focusing on interactions between gas giant magnetospheres and their moons. Observations show that flux depletions—known as microsignatures—often refill on timescales comparable to a single drift period,
Adnane Osmane, Elias Roussos, Peter Kollmann   +2 more
wiley   +1 more source

Replenishment of Methane in Titan’s Atmosphere by Intrusion-driven Thermal Destabilization of Methane Clathrate Hydrates

The Planetary Science Journal
Titan’s atmospheric methane requires replenishment due to photolysis-driven loss. We have modeled the destabilization of an upper layer of methane clathrate hydrates (MCH) containing some ammonia (NH _3 ) through thermal interaction with a warm ice ...
Ashley Gerard Davies, Mathieu Choukroun, Christophe Sotin, Tuan H. Vu, Elodie Gloesener   +4 more
doaj   +1 more source