Results 51 to 60 of about 554 (200)

A Youthful Titan Implied by Improved Impact Simulations

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract The small number of impact craters found on Titan suggests that its surface is relatively young. Previous work estimated its surface age to be between 200 and 1000 Myr. This estimate, however, is based on crater scaling laws for water and sand, which are not representative of the composition of Titan's icy surface.
S. Wakita, B. C. Johnson, J. M. Soderblom, C. D. Neish   +3 more
wiley   +1 more source

Water masers in the Saturnian system

, 2009
Context. The presence of water has long been seen as a key condition for life in planetary environments. The Cassini spacecraft discovered water vapour in the Saturnian system by detecting absorption of UV emission from a background star.
I. M. Avruch, S. Pluchino, C. B. Cosmovici, M. Elitzur, J. Ritakari, M. Uunila, G. Molera, L. I. Gurvits, S. V. Pogrebenko, G. Maccaferri, J. Wagner, A. Mujunen, E. Salerno, S. Montebugnoli   +13 more
core   +1 more source

Slantwise Convection and Heat Transport in Icy Moon Oceans

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Ocean heat transport on icy moons shapes the ice shell topography, a primary observable of these moons. Two key processes control the heat transport: baroclinic instability driven by surface buoyancy contrasts and convective instability driven by heating from the core.
Yaoxuan Zeng, Malte F. Jansen
wiley   +1 more source

Constraining Time Variations in Enceladus’s Water-vapor Plume with Near-infrared Spectra from Cassini’s Visual and Infrared Mapping Spectrometer

The Planetary Science Journal
Water vapor produces a series of diagnostic emission lines in the near-infrared between 2.60 and 2.75 μ m. The Visual and Infrared Mapping Spectrometer (VIMS) on board the Cassini spacecraft detected this emission signal from Enceladus’s plume, and so ...
K. E. Denny, M. M. Hedman, D. Bockelée-Morvan, G. Filacchione, F. Capaccioni   +4 more
doaj   +1 more source

Transient, Localized Flux Transport Revealed by Electron Microsignatures Downstream of Saturnian Moons

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract In Saturn's magnetosphere, the inward transport of magnetic flux is largely carried by localized injection flux tubes filled with warm, tenuous plasma, although their inflow speeds and spatio‐temporal properties remain poorly constrained. Here, we propose that these flux tubes can modify electron microsignatures, the small‐scale, absorption ...
Ya‐Ze Wu, Xu‐Zhi Zhou, Ze‐Fan Yin, Yi‐Xin Sun, Yi‐Xin Hao, Elias Roussos, Chao Yue, Qiu‐Gang Zong   +7 more
wiley   +1 more source

Ion‐Selective Electrode Robustness to Environmental Conditions Relevant to Spaceflight Missions to the Outer Solar System

Electroanalysis, Volume 38, Issue 2, February 2026.
Future in situ missions to ocean worlds of the outer solar system would benefit from the aqueous chemical measurements provided by ion‐selective electrodes (ISEs). Here, we verify the performance of ISEs after exposure to environments expected during outer Solar System missions, specifically near‐decade scale transit times, anhydrous conditions, low ...
Elizabeth A. Jaramillo, Emmanuelle Despagnet‐Ayoub, Anita Fisher, Richard C. Quinn, Aaron C. Noell   +4 more
wiley   +1 more source

The PHESAT95 campaign of observations of the phenomena of the saturnian satellites [PDF]

Symposium - International Astronomical Union, 1996
This paper reports on the international PHESAT95 campaign of observations of the Saturnian events coordinated by Bureau des longitudes. Thanks to CCD or photometric receptors, accurate astrometric data can be get from the observation of the eclipses by Saturn and mutual events of the Saturnian satellites.
J.-E. Arlot, W. Thuillot, F. Colas, P. Descamps, J. Berthier, B. Morando, C.H. Veiga, D.T. Vu, Ch. Ruatti, J. Lecacheux, P. Laques   +10 more
openaire   +1 more source

Differentiating Plumes and Local Torus Segments of Enceladus

Journal of Geophysical Research: Space Physics, Volume 131, Issue 2, February 2026.
Abstract Enceladus's south polar plumes and their surrounding torus segments (local plasma regions formed by plume material diffusion) are key to understanding its magnetospheric interaction; however, clear observational criteria to distinguish them remain lacking.
Shangchun Teng, Zhonghua Yao, Jian Zhang, Tianshu Qin, Fiona Wai Chung Law, Jinyan Zhao, Ruilong Guo   +6 more
wiley   +1 more source

Astrometric results of observations of mutual occultations and eclipses of the Saturnian satellites in 2009

, 2012
International audienceContext. The photometry of mutual occultations and eclipses of natural planetary satellites can be used to infer very accurate astrometric data.
X. Zhang, Massallé, A., Roman-Lopes, A., D. L. Gorshanov, Arlot, J.-E., M. Mc Brien, J. Lecacheux, Murphy, A., Mc Brien, M., Emelyanov, N. V., Le Campion, J.-F., Christou, A., Parakhin, N., J. I. B. Camargo, T. George, G. Dourneau, George, T., Lainey, V., Casas, R., A. Kurenya, A. Roman-Lopes, A. Murphy, Camargo, J. I. B., Sergeev, A., Schnabel, C., D. N. Da Silva Neto, A. Massallé, Gault, D., Vieira-Martins, R., J. F. Le Campion, Zhang, X., D. Gault, Kurenya, A., V. Kozlov, A. Sergeev, Andreev, M., Kozlov, V., Loader, B., R. Vieira-Martins, P. Valdés Sada, Dias-Oliveira, A., V. Lainey, Tsamis, V., Assafin, M., Colas, Florent, M. Andreev, A. Farmakopoulos, N. Parakhin, Lecacheux, J., J.-E. Arlot, R. Casas, Dechambre, O., A. Dias-Oliveira, Gorshanov, D. L., N. V. Emelyanov, O. Dechambre, Herald, D., V. Tsamis, Braga-Ribas, F., F. Colas, C. Schnabel, Dourneau, G., M. Assafin, F. Braga-Ribas, da Silva Neto, D. N., D. Herald, A. Christou, Valdés Sada, P., B. Loader, Farmakopoulos, A.   +69 more
core   +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