Volcanism on Venus has never been directly observed, but several measurements indicate present-day activity. Volcanism could potentially play a role in climatic processes on Venus, especially in the sulfur cycle […]
Venus
Posted inAtmospheres, Climate, Weather, Exoplanets, -moons, -comets, Missions & Hardware, Status Report, Venus
The Effect Of Near-surface Winds On Surface Temperature And Dust Transport On Venus
The knowledge of the Venus near-surface atmosphere is sparse. Few spacecrafts landed on the surface and measured winds with amplitudes below 1 m/s.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Gaia - Planetary Perspectives, Mars, Press Release, Venus
Using Venus, Earth, and Mars to Understand Exoplanet Volatile and Climate Evolution
Venus, Earth, and Mars exhibit a wide range of interactions between their deep interiors, surfaces, lower and upper atmospheres, and the Sun, with commensurate variations in the nature of their […]
Posted inEnceladus, Europa, Ganymede, Habitable Zones, Mars, Status Report, Titan, Venus
Special Issue of Geosciences: “Worlds of the Solar System: Geological Evolution and Habitability of Planets and Moons”
The Special Issue of Geosciences entitled “Worlds of the Solar System: Geological Evolution and Habitability of Planets and Moons” aims to bring together the latest advances on the dynamic processes […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report, Venus
Sub-Neptune Exoplanet K2-18b Does Not Meet the Standards Of Evidence For Life
K2-18b, a temperate sub-Neptune, has garnered significant attention due to claims of possible biosignatures in its atmosphere. Low-confidence detections of dimethyl sulfide (DMS) and/or dimethyl disulfide (DMDS) have sparked considerable […]
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Status Report, Venus
Powerful Lightning On Venus Constrained By Atmospheric NO
Signs of lightning on Venus have long been sought, including by space missions and ground-based telescopes searching for optical flashes, plasma waves, or radio signatures.
Posted inAstrochemistry, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Brown Dwarfs, Imaging & Spectroscopy, Press Release, Venus
Detection of Phosphine In A Brown Dwarf Atmosphere Raises More Questions
Phosphorus is one of six key elements necessary for life on Earth. When combined with hydrogen, phosphorus forms the molecule phosphine (PH3), an explosive, highly toxic gas. Found in the […]
Posted inFossils & Paleontology, Habitable Zones, Mars, Radiation, Space Weather & Heliophysics, Status Report, Venus
Extreme Geomagnetic Storm On Early Earth Induced by Corotating Interaction Regions from the Young Sun
Recent multiwavelength observations of young solar analogs suggest that the young Sun in the first 600 Myr was a magnetically active star that produced an X-ray and Extreme-UV (EUV) bright […]
Posted inAI - Data - Apps - Cybernetics, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report, Venus
The Open-Source Photochem Code: A General Chemical and Climate Model for Interpreting (Exo)Planet Observations
With the launch of the James Webb Space Telescope, we are firmly in the era of exoplanet atmosphere characterization. Understanding exoplanet spectra requires atmospheric chemical and climate models that span […]
Posted inAstrochemistry, Astrogeology, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Microbiology & Virology, Status Report, Venus
Terrestrial Dimethyl Sulfide: Template For Astrobiology
Dimethyl sulfide (DMS) is a volatile breakdown product of dimethyl-sulfonio-propionate (DMSP). DMS is synthesized by marine phytoplankton, plays a central role in Earth’s sulfur cycle and has growing relevance in […]