Results 31 to 40 of about 466 (130)

Updated Interior Structure of Callisto From a Reanalysis of Galileo Data

open access: yesGeophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract The internal structure of Callisto has been a long‐standing question since the Galileo mission. Previous analyses suggested a largely undifferentiated interior. We present an updated interior structure for Callisto derived from a reanalysis of Galileo's Doppler tracking data using new signal processing techniques.
G. Cascioli   +5 more
wiley   +1 more source

Microbial Oxidative Stress in Food Fermentations: A Comprehensive Review

open access: yeseFood, Volume 7, Issue 4, August 2026.
Oxidative stress has a dual role in food fermentations: low ROS supports adaptive signaling, whereas excessive ROS causes cellular damage and process inhibition. Managing redox state as a controllable process variable can improve fermentation robustness and final food quality.
Wanrong Hu   +11 more
wiley   +1 more source

Comets, volcanism, the salt-rich regolith, and cycling of volatiles on Mars [PDF]

open access: yesIcarus, 1987
Abstract Estimates of the total inventory of the volatile elements C, H, O, and N on Mars, based upon atmospheric gas tracers, vary by a factor of 25 among different authors. Accretion of comets as the source of volatiles can account for less than 5% of the actual inventory, assuming the chondritic S/Cl abundance ratio in comets and a Martian ...
openaire   +1 more source

Oxidation of Aqueous Sulfide by Chlorate: Implications for Native Sulfur Formation on Mars

open access: yesGeophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract The recent discovery of native sulfur (“sulfur stones” consist of elemental sulfur) by Curiosity rover in the Gale Crater has sparked considerable research interest toward identifying its formation mechanisms that could generate novel insights into Martian sulfur cycling.
J. Wang   +5 more
wiley   +1 more source

Material Flow Cost Accounting: A decision‐support framework for integrating economic and environmental dimensions in livestock manure management

open access: yesJournal of Environmental Quality, Volume 55, Issue 4, July/August 2026.
Abstract Livestock manure presents a paradox: It is simultaneously a valuable nutrient and energy resource and if managed improperly, it will also become a source of greenhouse gas emissions and water pollution. Current farm‐level assessment tools typically operate in silos.
Reza Keshavarz Afshar, Majid Dekamin
wiley   +1 more source

Rheological Characterization and Multi‐Regime Viscosity Modeling of Diluted Polyethylene Mixtures

open access: yesPolymer Engineering &Science, Volume 66, Issue 7, Page 4913-4925, July 2026.
This study maps the flow behavior of low‐density polyethylene in a recycling solvent from dilute solutions to entangled melts. By integrating time–concentration and time–temperature superposition, and coupling three complementary rheometry methods, a unified semiempirical model accurately predicts steady‐shear viscosity over nine decades of viscosity ...
Johannes Krug   +7 more
wiley   +1 more source

Groundwater Connectivity and Buffering in Western Australian Hypersaline Lakes: Implications for Late‐Stage Martian Lacustrine Systems

open access: yesEarth and Space Science, Volume 13, Issue 7, July 2026.
Abstract Thousands of saline to hypersaline lakes exist across the Yilgarn Craton in Western Australia, representing potential Mars analogs with diverse and varying salinity, pH, and oxygen conditions that remain poorly constrained. Here, we report geochemical trends in lake waters that vary across wet‐dry cycles as well as with regional location and ...
T. A. Plattner   +26 more
wiley   +1 more source

Geology and Chronology of the Lunar Taruntius Crater: Implications for the Retention Age of Lunar Ray Patterns and Lifetime of Lunar Explosive Volcanism

open access: yesEarth and Space Science, Volume 13, Issue 7, July 2026.
Abstract The Taruntius crater, situated between Maria Fecunditatis, Crisium, and Tranquillitatis, is characterized by a prominent bright ray system and a floor‐fractured morphology and has long been interpreted as a relatively young Eratosthenian or Copernican crater.
Longjiao Yu   +3 more
wiley   +1 more source

A Tale of “Two” Comets: The Primary Volatile Composition of Comet 2P/Encke Across Apparitions and Implications for Cometary Science

open access: yesThe Astronomical Journal, 2018
Abstract The highly favorable 2017 apparition of 2P/Encke allowed the first comprehensive comparison of primary volatile abundances in a given comet across multiple apparitions. This apparition offered opportunities to address pressing questions in cometary science, including investigating evolutionary and/or heliocentric distance (R
Nathan X. Roth   +7 more
openaire   +1 more source

The Volatile Composition and Activity Evolution of Main-belt Comet 358P/PANSTARRS

open access: yesThe Planetary Science Journal
Abstract We report the detection of water vapor associated with main-belt comet 358P/PANSTARRS on UT 2024 January 8–9 using the NIRSPEC instrument on board JWST. We derive a water production rate of Q
Henry H. Hsieh   +19 more
openaire   +3 more sources

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