[Frontiers] Icy ocean worlds represent some of the most compelling targets in the search for extraterrestrial life, yet their exploration is constrained by significant logistical challenges including long transit times, […]
icy world
Posted inTitan
A Review Of The Geochemical Environment at Selk Crater on Titan: Applications to Dragonfly
[Astrobiology (Journal)] This article summarizes the current state of knowledge regarding the destination for NASA’s Dragonfly mission: Titan’s Selk crater.
![A heterotrophic ecosystem enabled by fermentation on Enceladus. [astro-ph.EP]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/10/Fermentation.png?resize=1200%2C720&ssl=1)
Posted inEnceladus
Fermentation Heterotrophy Can Reproduce Enceladus’s H2 And CH4 Under Limited Serpentinization
[astro-ph.EP] Saturn’s icy moon Enceladus is a prime target in the search for life beyond Earth. Abundant H2 and CH4 in Enceladus’s south-polar plume have been shown to be consistent […]
![Percentage of 1,000 stochastic paths that converge shown as color maps for e “ 0.1, 0.3. The two bracketed values in the title of each sub-figure are the critical deterministic values of S ˚ for convergence and bifurcation given in Table A.2. The white and black horizontal lines are the convergence and bifurcation values respectively. Additional figures are found in the Supplementary Material (Appendix C). -- [astro-ph.EP]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/10/Stochastic-Snowball.png?resize=1200%2C720&ssl=1)
Posted inBiogeochemical Cycles & Geobiology
Stochastic Snowball States in Planetary Climate
[astro-ph.EP] Motivated by the recent finding of Ji and Abbot (2025) that at moderate eccentricity (0.2–0.3) the planetary Snowball bistability vanishes, we have introduced stochasticity of the orbital eccentricity into […]
Posted inMicrobiology & Virology
Assessing the Preservation of Polysaccharides from a Sea-Ice Bacterium Through Analog Icy Moon Plume Ejection
[Astrobiology (Journal)] Detection of complex organics emitted from Saturn’s moon Enceladus has intensified the search for biosignatures accessible to future missions.
Posted inEnceladus
Paleo-heat Flux Estimates Across Enceladus Derived From Flexural Response Of The Ice Shell
[Icarus] Saturn’s moon Enceladus has active plumes suggestive of locally high heat fluxes at present, and the present-day heating is reasonably well characterized. However, the moon’s thermal history is not […]
![Color maps showing statistical uncertainties on the line-of-sight CH3CN Doppler shifts, for four epochs (2016-08-19 to 2022-08-01). Titan’s wireframe grid is shown for each epoch, with the spatial resolution (elliptical beam FWHM) indicated lower left.-- [astro-ph.EP]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/10/Temporal-Variability.png?resize=1200%2C735&ssl=1)
Posted inTitan
Temporal Variability of Titan’s Middle-Atmospheric Zonal Winds from Southern Fall to Late Winter (2016-2023)
[astro-ph.EP] Previous ALMA observations have revealed unexpectedly strong and rapid variations in Titan’s high-altitude equatorial zonal winds, which present a challenge to our understanding of this moon’s atmospheric dynamics.
Posted inEnceladus
Life On Saturn’s Moon Enceladus Would Be Possible
[University of Regensburg] From a human perspective, Enceladus is anything but a comfortable place to live: Icy cold, hardly any oxygen, and – below its icy crust – a global […]
Posted inTitan
Flow Dynamics Of Cryolava Or Impact Melt On Titan’s surface
[astro-ph.EP] Titan, a unique body in the solar system, resembles a life-size Miller-Urey experiment where pockets of liquid water might interact with abundant organic matter.
Posted inEnceladus
How Enceladus’ Ocean Spray Becomes Chemically Diverse Ice Grains
[Institute of Science Tokyo] Saturn’s icy moon Enceladus hides a global ocean beneath its frozen surface. From fractures near its south pole, material from this ocean is ejected into space […]