The expansion of exoplanet observations has created a need for flexible, accessible, and user-friendly workflows.
habitability
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Status Report, Stellar Cartography
Closeby Habitable Exoplanet Survey (CHES). V. Planetary Parameters Derived from Angular Separation Variations
The Closeby Habitable Exoplanet Survey (CHES) aims to achieve microarcsecond-level astrometry of about one hundred nearby FGK-type stars within 10 parsecs to detect Earth-like planets.
Posted inAstrogeology, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Fossils & Paleontology, Habitable Zones, Origin & Evolution of Life, Status Report, Water/Hycean Worlds & Oceanography
Atmospheric Oxygen And Methane On The Early Earth
The habitability of the early Earth was affected by various factors. We focus here on atmospheric oxygen (O2) and methane (CH4). O2 is essential for supporting eukaryotic life, including plants […]
Posted inAI - Data - Apps - Cybernetics, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Gaia - Planetary Perspectives, Habitable Zones, Proxima Centauri, Status Report, TRAPPIST-1, Water/Hycean Worlds & Oceanography
Ecological Modelling Of Hycean Worlds
New observations are opening the possibility of characterising habitable environments in exoplanetary systems, with the recent example of the candidate hycean world K2-18 b.
Posted inAstrochemistry, Astrogeology, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Origin & Evolution of Life, Status Report
Proton Irradiation of Primitive Atmospheres of Young Exoplanets And Early Earth: N2O Greenhouse Warming And Prebiotic Synthesis
The emergence of habitable conditions on the early Earth and on rocky exoplanets requires persistent energy sources that can drive both prebiotic chemistry and climate warming under magnetically active young […]
Posted inAstrochemistry, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report
Organosulfur Chemistry On sub-Neptunes: Implications For Hazes And Biosignatures
The organosulfur biosignature gases dimethylsulfide (DMS) and dimethlydisulfide (DMDS) have recently been claimed to be present in the atmosphere of sub-Neptune exoplanet K2-18b, leading to the suggestion of possible extraterrestrial […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Gaia - Planetary Perspectives, Gaia Mission, Habitable Zones, Imaging & Spectroscopy, People Of Astrobiology, Press Release, TRAPPIST-1
Where To Find Other Earths? New List Narrows Down The Targets
New Cornell research – co-authored by an undergraduate and two recent alumni – will help exoplanet scientists pinpoint the most likely places to look for life in the universe out […]
Posted inAnalog Studies, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Europa, Exoplanets, -moons, -comets, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Status Report, Water/Hycean Worlds & Oceanography
The Fate of Frozen Carbonated Water at Europa-like Conditions
We present the results of experiments probing the retention of CO2 in crystalline water ice, frozen sodium chloride (NaCl) brines, and flash-frozen carbonated water using diffuse reflectance infrared spectroscopy.
Posted inHabitable Zones, Mars, Microbiology & Virology, Missions & Hardware, Planetary Protection & Biosafety, Robotics/Rovers/UAVs, Sample Return, Status Report, Terraforming & Geoengineering
Limits of Terrestrial Life and the Probability of Growth on Mars: Call for Speakers and Topics
The National Academies’ Committee on Planetary Protection is hosting a virtual meeting that will inform NASA’s efforts to develop a prioritized list of factors that contribute to the potential release […]
Posted inAlpha Centauri, Astronomy & Telescopes, Biosignatures & Paleobiology, Cubesats and smallsats, Habitable Zones, Imaging & Spectroscopy, Missions & Hardware, Status Report
The TOLIMAN Mission: A Low-cost Space Telescope For High Precision Narrow-angle Astrometry
The TOLIMAN project is engaged with the construction, launch and operation of a low-cost space telescope of unorthodox optical design. Its primary science goal targets an exhaustive search for temperate-orbit […]