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Interstellar Formation of Thioethanal (CH3CHS). Gas-Phase and Ice-Surface Mechanisms involving Secondary Sulfur Products
8+ hour, 3+ min ago (307+ words) Interstellar Formation of Thioethanal (CH3CHS). Gas-Phase and Ice-Surface Mechanisms involving Secondary Sulfur Products'astrobiology.com Interstellar Formation of Thioethanal (CH3CHS). Gas-Phase and Ice-Surface Mechanisms involving Secondary Sulfur Products The formation pathways of sulfur-bearing species in the interstellar medium are crucial to understand astrochemical…...
Conceptual Challenges In Astrobiological Analog Environments And Paths Toward Resolution
3+ day, 11+ hour ago (286+ words) Conceptual Challenges In Astrobiological Analog Environments And Paths Toward Resolution'astrobiology.com Conceptual Challenges In Astrobiological Analog Environments And Paths Toward Resolution Analog environments are terrestrial environments that resemble extraterrestrial sites; this concept originated in space sciences for defining methods to…...
Machine Learning Exploration Of Binding Energy Distributions Of H2O At Astrochemically Relevant Dust Grain Surfaces
6+ day, 8+ hour ago (304+ words) Machine Learning Exploration Of Binding Energy Distributions Of H2O At Astrochemically Relevant Dust Grain Surfaces'astrobiology.com Machine Learning Exploration Of Binding Energy Distributions Of H2O At Astrochemically Relevant Dust Grain Surfaces Binding energies (BEs) of adsorbates on interstellar dust grains critically control…...
Chemistry in Extreme Environments: The Mystery of Molecular Complexity In Space
1+ week, 2+ day ago (161+ words) Chemistry in Extreme Environments: The Mystery of Molecular Complexity In Space'astrobiology.com Chemistry in Extreme Environments: The Mystery of Molecular Complexity In Space Molecular complexity in the interstellar medium (ISM) poses one of the most intriguing challenges in astrochemistry: how…...
Supramolecular Interactions of Organometallic Origin Facilitating Astrochemical Reactions: An Electronic Structure Study Featuring Metal Cyanides versus Metal Isocyanides
1+ week, 2+ day ago (649+ words) Supramolecular Interactions of Organometallic Origin Facilitating Astrochemical Reactions: An Electronic Structure Study Featuring Metal Cyanides versus Metal Isocyanides'astrobiology.com Supramolecular Interactions of Organometallic Origin Facilitating Astrochemical Reactions: An Electronic Structure Study Featuring Metal Cyanides versus Metal Isocyanides This work highlights…...
A Narrowband Technosignature Search Toward The Hycean Candidate K2-18b Using The VLA And MeerKAT
1+ week, 2+ day ago (202+ words) K2-18b, a sub-Neptune exoplanet located in the habitable zone of its host star, has emerged as an important target for atmospheric characterization and assessments of potential habitability. Motivated by recent interpretations of JWST observations suggesting a hydrogen-rich atmosphere consistent with Hycean-world…...
Why Only A Small Number Of Planets Are Suitable For Life
1+ week, 3+ day ago (292+ words) Core formation as a form of cosmic roulette When planets form, they initially develop out of molten rock. A sorting process occurs during this time: heavy metals such as iron sink down and form the core, while lighter metals form…...
Sulfur Enrichment In Close-in Exoplanet Atmospheres Induced By Pebble Drift Across The Salt Line
1+ week, 3+ day ago (755+ words) Sulfur Enrichment In Close-in Exoplanet Atmospheres Induced By Pebble Drift Across The Salt Line'astrobiology.com Sulfur Enrichment In Close-in Exoplanet Atmospheres Induced By Pebble Drift Across The Salt Line Observations of JWST have revealed that several close-in exoplanets have sulfur-rich…...
The Power Of Polarimetry For Characterising Exoplanet Atmospheres, Clouds, And Surfaces With NASA's Habitable Worlds Observatory
1+ week, 3+ day ago (202+ words) The Habitable Worlds Observatory (HWO), planned for launch in the 2040s, represents the next major step in exoplanet characterisation. HWO will, for the first time, enable detailed studies of the atmospheres and surfaces of Earth-like exoplanets through high-contrast reflection spectroscopy across…...
The Effects Of Non-ideal Mixing In Planetary Magma Oceans And Atmospheres
1+ week, 5+ day ago (205+ words) Recent advances in both geochemistry and astrophysics now allow the integration of experimental constraints and thermodynamic models across melt, metal, and gas phases. Here we extend a global chemical equilibrium model to include non-ideal behavior in all three phases. Our…...