Understanding the climate dynamics at the inner edge of the habitable zone (HZ) is crucial for predicting the habitability of rocky exoplanets. Previous studies using Global Climate Models (GCMs) have […]
Greenhouse Effect
Posted inAtmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Habitable Zones, Imaging & Spectroscopy, Missions & Hardware, Press Release, Venus
Venus Has Almost No Water. A New Study May Reveal Why
Planetary scientists at the University of Colorado Boulder have discovered how Venus, Earth’s scalding and uninhabitable neighbor, became so dry.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Habitable Zones, Status Report, TRAPPIST-1
The Impact Of The Explicit Representation Of Convection On The Climate Of A Tidally Locked Planet In Global Stretched-mesh Simulations
Convective processes are crucial in shaping exoplanetary atmospheres but are computationally expensive to simulate directly.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Extinction events, Gaia - Planetary Perspectives, Habitable Zones, Imaging & Spectroscopy, Impact events, Press Release, Terraforming & Geoengineering, Water/Hycean Worlds & Oceanography
Exoplanet Climate: It Takes Nothing To Switch From Habitable To Hell
The Earth is a wonderful blue and green dot covered with oceans and life, while Venus is a yellowish sterile sphere that is not only inhospitable but also sterile. However, […]
Posted inAtmospheres, Climate, Weather, Exoplanets, -moons, -comets, Lava / magma ocean / Volcanic Worlds, Status Report, Water/Hycean Worlds & Oceanography
A Cool Runaway Greenhouse Without Surface Magma Ocean
Water vapour atmospheres with content equivalent to the Earth’s oceans, resulting from impacts or a high insolation, were found to yield a surface magma ocean. This was, however, a consequence […]
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Extinction events, Gaia - Planetary Perspectives, Habitable Zones, Imaging & Spectroscopy, Status Report
Bioverse: The Habitable Zone Inner Edge Discontinuity as an Imprint of Runaway Greenhouse Climates on Exoplanet Demographics
Long-term magma ocean phases on rocky exoplanets orbiting closer to their star than the runaway greenhouse threshold – the inner edge of the classical habitable zone – may offer insights […]
Posted inAtmospheres, Climate, Weather
How Does The Background Atmosphere Affect The Onset Of The Runaway Greenhouse?
As the insolation of an Earth-like (exo)planet with a large amount of water increases, its surface and atmospheric temperatures also increase, eventually leading to a catastrophic runaway greenhouse transition. While […]
Posted inAtmospheres, Climate, Weather
Beyond Runaway: Initiation Of The Post-runaway Greenhouse State On Rocky Exoplanets
The runaway greenhouse represents the ultimate climate catastrophe for rocky, Earth-like worlds: when the incoming stellar flux cannot be balanced by radiation to space, the oceans evaporate and exacerbate heating, […]
Posted inHabitable Zones, Press Release
Dependence of Onset of Runaway Greenhouse Effect on Latitudinal Surface Water Distribution of Earth-like Planets
Liquid water is one of the most important materials affecting the climate and habitability of a terrestrial planet. Liquid water vaporizes entirely when planets receive insolation above a certain value, […]