Results 41 to 50 of about 2,550 (207)

Enough Sulfur and Iron for Potential Life Make Enceladus’s Ocean Fully Habitable

The Astrophysical Journal Letters
The Cassini spacecraft revealed life-forming elements like CHNOP and diverse organic compounds from Enceladus’s ocean. However, the availability of minor but bio-essential nutrients such as iron and sulfur remains unknown.
Weiming Xu, Can Liu, Ao Zhang, Maggie Lau, H. James Cleaves, Fang Huang, Christopher R. Glein, Jihua Hao   +7 more
doaj   +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

Retrograde Predominance of Small Saturnian Moons Reiterates a Recent Retrograde Collisional Disruption

The Planetary Science Journal
We report the discovery and careful orbital determination of 64 new irregular moons of Saturn found in images taken using the Canada–France–Hawaii Telescope from 2019 to 2021, bringing the total number of Saturnian irregulars to 122.
Edward Ashton, Brett Gladman, Mike Alexandersen, Jean-Marc Petit   +3 more
doaj   +1 more source

Finding the trigger to Iapetus' odd global albedo pattern: Dynamics of dust from Saturn's irregular satellites

, 2011
The leading face of Saturn's moon Iapetus, Cassini Regio, has an albedo only one tenth that on its trailing side. The origin of this enigmatic dichotomy has been debated for over forty years, but with new data, a clearer picture is emerging. Motivated by
Black, Blackburn, Bottke, Bottke, Buratti, Buratti, Burns, Burns, Burns, Burns, Castillo-Rogez, Clark, Cruikshank, Cruikshank, Daniel Tamayo, Denk, Dermott, Douglas P. Hamilton, Farinella, Gladman, Grav, Greenberg, Hamilton, Hamilton, Hamilton, Hamilton, Jewitt, Joseph A. Burns, Lavvas, Liang, Matthew M. Hedman, McCord, Nesvorný, Ostro, Porco, Roatsch, Sheppard, Sheppard, Spencer, Tholen, Thomas, Tomasko, Tosi, Turrini, Turrini, Verbiscer, Vyazovkin, Ward, Wetherill, Öpik   +49 more
core   +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

Onboard Science Instrument Autonomy for the Detection of Microscopy Biosignatures on the Ocean Worlds Life Surveyor

The Planetary Science Journal
The quest to find extraterrestrial life is a critical scientific endeavor with civilization-level implications. Icy moons in our solar system are promising targets for exploration because their liquid oceans make them potential habitats ...
Mark Wronkiewicz, Jake Lee, Lukas Mandrake, Jack Lightholder, Gary Doran, Steffen Mauceri, Taewoo Kim, Nathan Oborny, Thomas Schibler, Jay Nadeau, James K. Wallace, Eshaan Moorjani, Chris Lindensmith   +12 more
doaj   +1 more source

Searching for Saturn's Dust Swarm: Limits on the size distribution of Irregular Satellites from km to micron sizes

, 2011
We describe a search for dust created in collisions between the Saturnian irregular satellites using archival \emph{Spitzer} MIPS observations. Although we detected a degree scale Saturn-centric excess that might be attributed to an irregular satellite ...
Benz, Benz, Bottke, Britt, Burns, Carruba, Davis, Dohnanyi, Durda, G. M. Kennedy, Gladman, Greenberg, Greenberg, Greenberg, Grogan, Housen, Housen, J. A. Stansberry, Jewitt, K. Y. L. Su, Kelsall, Kennedy, Kessler, Kirchoff, Li, Low, M. C. Wyatt, Nesvorný, Nesvorný, O’Brien, Richardson, Rieke, Sheppard, Smith, Stewart, Verbiscer, Wyatt, Ćuk   +37 more
core   +1 more source

ORIGIN OF THE CHAOTIC MOTION OF THE SATURNIAN SATELLITE ATLAS [PDF]

The Astronomical Journal, 2016
ABSTRACT We revisit the dynamics of Atlas. Using Cassini ISS astrometric observations spanning 2004 February to 2013 August, Cooper et al. found evidence that Atlas is currently perturbed by both a 54:53 corotation eccentricity resonance (CER) and a 54:53 Lindblad eccentricity resonance (LER) with Prometheus.
Renner, S., Cooper, N., Moutamid, M. El, Sicardy, B., Vienne, A., Murray, C., Saillenfest, M.   +6 more
openaire   +4 more sources

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

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