By aiming to find and characterise dozens of habitable exoplanets through the technique of nulling interferometry, the LIFE space mission will produce transformational science. One of the key parameters for […]
habitability
Posted inAstrochemistry, Astrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Fossils & Paleontology, Genomics, Proteomics, Bioinformatics, Habitable Zones, Origin & Evolution of Life, Press Release, Water/Hycean Worlds & Oceanography
How The Rise Of Continents May Have Set The Stage For Life On Earth
Earth’s earliest continents may have set the chemical stage for life by regulating boron levels in ancient oceans, a new study in Terra Nova suggests.
Posted inAstrobiology (general), Biosignatures & Paleobiology, Habitable Zones, Status Report
The Catastrophic Consequences of Agnosticism for Life Searches and a Possible Workaroun
Planned and ongoing searches for life, both biological and technological, confront an epistemic barrier concerning false positives – namely, that we don’t know what we don’t know.
Posted inAtmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Gaia - Planetary Perspectives, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Status Report, Terraforming & Geoengineering, Water/Hycean Worlds & Oceanography
Synergistic Effects of Ocean Salinity and Planetary Obliquity Enhance Habitability of Cold Exo-Earths
Past work has shown that ocean salinity and planetary obliquity both influence the climates of Earth-like exoplanets throughout the habitable zone of Sun-like stars. The effects of salinity and obliquity […]
Posted inAstrochemistry, Astrogeology, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Comets and Asteroids, Extinction events, Impact events, Meteorites & Asteroids, Origin & Evolution of Life, Press Release, Water/Hycean Worlds & Oceanography
Did Impacts From Meteors Help Start Life On Earth?
Meteor impacts may have helped spark life on Earth, creating hot, chemical-rich environments where the first living cells could take shape, according to research integrated by a recent Rutgers University […]
Posted inEnceladus, Europa, Ganymede, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Jupiter, Saturn, Status Report, Titan
Ammonia As A Parameter Shaping Habitability On Icy Moons
The search for life now extends beyond the traditional habitable zone to include the icy moons of Jupiter and Saturn. These moons feature ice-covered surfaces overlying substantial oceans formed primarily […]
Posted inAI - Data - Apps - Cybernetics, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Gaia - Planetary Perspectives, Habitable Zones, Status Report, Water/Hycean Worlds & Oceanography
Smaller Than Earth Habitability Model (STEHM): The Lower Size Limit for Atmosphere Retention in the Habitable Zone
With recent advances in exoplanet observational techniques enabling the discovery of increasingly smaller planets, a crucial question emerges in the search for habitable planets: how small can a planet be […]
Posted inAtmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Habitable Zones, Origin & Evolution of Life, Status Report
The Hydrogen, Methane And Ammonia Biosphere On Early Earth
Current paradigms for the origin and evolutions of life and the environment on early Earth have been based on the premises that carbon dioxide (CO2) and nitrogen gas (N2) were […]
Posted inBiophysics, Exoplanets, -moons, -comets, Gaia - Planetary Perspectives, Habitable Zones, Radiation, Space Weather & Heliophysics, Status Report
Flare-driven Habitability: Expanding Life’s Potential Around Low-mass Stars
The traditional definition of the circumstellar habitable zone (HZ) focuses on liquid water, but neglects the crucial role of ultraviolet (UV) radiation in prebiotic chemistry.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release, Space Weather & Heliophysics, Stellar Cartography
Asteroseismic Modelling Of Main-sequence Solar-like Stars And Kepler Exoplanet Host Stars With The FICO Procedure I. Catalogue Of Fundamental Stellar Properties
We present detailed asteroseismic modelling of 95 main-sequence solar-like stars and Kepler exoplanet host stars using the FICO procedure, a three-step method that combines forward and inverse techniques that enables […]