Results 41 to 50 of about 7,875 (212)

Dispersion forces stabilise ice coatings at certain gas hydrate interfaces which prevent water wetting

, 2019
Gas hydrates formed in oceans and permafrost occur in vast quantities on Earth representing both a massive potential fuel source and a large threat in climate forecasts.
Boström, Mathias, Brevik, Iver, Buhmann, Stefan Y., Corkery, Robert, Fiedler, Johannes, Lima, Eduardo, Malyi, Oleksandr, Parsons, Drew F., Persson, Clas   +8 more
core   +1 more source

Crater Observing Bioinspired Rolling Articulator (COBRA)

Advanced Intelligent Systems, Volume 8, Issue 3, March 2026.
Crater Observing Bio‐inspired Rolling Articulator (COBRA) is a modular, snake‐inspired robot that addresses the mobility challenges of extraterrestrial exploration sites such as Shackleton Crater. Incorporating snake‐like gaits and tumbling locomotion, COBRA navigates both uneven surfaces and steep crater walls.
Adarsh Salagame, Henry Noyes, Eric Sihite, Arash Kalantari, Alireza Ramezani   +4 more
wiley   +1 more source

The pH of Enceladus’ ocean [PDF]

Geochimica et Cosmochimica Acta, 2015
Observational data from the Cassini spacecraft are used to obtain a chemical model of ocean water on Enceladus. The model indicates that Enceladus' ocean is a Na-Cl-CO3 solution with an alkaline pH of ~11-12. The dominance of aqueous NaCl is a feature that Enceladus' ocean shares with terrestrial seawater, but the ubiquity of dissolved Na2CO3 suggests ...
Glein, Christopher, Baross, John, Waite, Hunter   +2 more
openaire   +2 more sources

The Youthful Appearance of the 2003 EL61 Collisional Family [PDF]

, 2008
We present new solar phase curve observations of the 2003 EL61 collisional family showing that all the members have light-scattering properties similar to the bright icy satellites and dwarf planets. Compared to other Kuiper Belt objects, the five family
Barkume, Bradley E. Schaefer, Brown, Brown, Brunetto, Buratti, Burns, Clark, Cook, David L. Rabinowitz, Martha Schaefer, Olkin, Press, Rabinowitz, Rabinowitz, Ragozzine, Schaller, Schaller, Sheppard, Sheppard, Stansberry, Stern, Suzanne W. Tourtellotte, Tegler, Trujillo   +24 more
core   +3 more sources

Defining soil: Proposals of zero‐states, active layer, and págousols (from ice parent materials) to fundamentally expand soil science

Soil Science Society of America Journal, Volume 90, Issue 2, March/April 2026.
Abstract Recent publications in soil science have reopened discussions over how soil and soil science should be defined, reflecting productive tension between historical constructs and the evolving frontiers of the discipline. While new definitions offered over the past decade provide valuable perspectives, they inevitably rely on past conventions and ...
Aaron Lee M. Daigh
wiley   +1 more source

Evidence of Gaia Enceladus Experiencing at Least Two Passages around the Milky Way

The Astrophysical Journal Letters
One of the major recent breakthroughs has been the discovery of the last major merger to happen in the history of the Milky Way. Around 10 Gyr ago, the galaxy Gaia Enceladus with an estimated ∼10% of the Milky Way mass, fell into the potential of our ...
Ása Skúladóttir, Heitor Ernandes, Diane K. Feuillet, Alice Mori, Sofia Feltzing, Romain E. R. Lucchesi, Paola Di Matteo   +6 more
doaj   +1 more source

Surface‐Driven Protocell Formation in Geologically Relevant Early Earth Environment

ChemSystemsChem, Volume 8, Issue 2, March 2026.
Illustration of a prebiotic early‐Earth environment showing cell‐like protocells (blue spheres) and other complex organic molecules (pink and green spheres) distributed across terrestrial surfaces and within subsurface niches. Volcanic landscapes and mineral‐rich substrates provide diverse geochemical settings for the assembly and evolution of ...
Pamela Knoll, Silvia Holler
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

JWST/NIRSpec Reveals the Atmospheric Driver of Saturn's Variable Magnetospheric Rotation Rate

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Past measurements of Saturn's upper atmosphere have allowed only a broad scale view of the temperature and ion density structures within the auroral region. However, Saturn's auroral currents include a planetary period current component that is produced by neutral atmospheric flows.
Tom S. Stallard, Luke Moore, Henrik Melin, Chris G. A. Smith, 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, John C. Coxon, Sarah V. Badman, Joe A. Caggiano   +15 more
wiley   +1 more source

Spatial Distribution of Glycine and Aspartic Acid in Rapidly Frozen Brines Relevant to Enceladus

The Planetary Science Journal, 2023
Saturn’s moon Enceladus harbors a global, subsurface liquid ocean beneath an icy crust that actively erupts water jets from fissures in its south pole. Data returned from the Cassini mission have identified salts and organic matter within these ejected ...
Tuan H. Vu, Robert Hodyss, Paul V. Johnson, Morgan L. Cable   +3 more
doaj   +1 more source