Every morning, clouds roll in, and by evening, they have cleared off. This sounds like a weather forecast for a coastal city here on Earth — but it’s for WASP-94A […]
atmosphere
Posted inAtmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report, Venus
ALERA-V Version 1.0: An Objective Analysis Dataset of the Venus Atmosphere
An objective analysis dataset of the Venus atmosphere, ALERA-V version 1.0, has been released. This objective analysis provides the best estimate of the state of the Venus atmosphere produced by […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Gas Giants, Habitable Zones, Imaging & Spectroscopy, Press Release
Atmosphere Of Saturn-sized Planet With Earth-like Temperature Contains Methane
A planet that is about the size of Saturn, but with a temperature more like Earth’s, has an atmosphere rich in methane, according to a new study using NASA’s James […]
Posted inAtmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Press Release, Water/Hycean Worlds & Oceanography
A Hycean Interpretation of K2-18b Supported by Photochemical Atmospheric Compositional
The nature of the sub-Neptune K2-18b is debated between Hycean and mini-Neptune interpretations.
Posted inBiogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Desert Worlds, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Mars, Origin & Evolution of Life, Status Report, Terraforming & Geoengineering, Water/Hycean Worlds & Oceanography
Mars As An Exoplanet: Lessons From A Planet At The Edge Of Habitability
Mars is the Solar System’s canonical small, rocky planet that transitioned from early geologic activity and surface liquid water to a cold and arid planet with a thin, cold, CO2-dominated […]
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Gaia - Planetary Perspectives, Habitable Zones, Imaging & Spectroscopy, Status Report, Venus, Water/Hycean Worlds & Oceanography
Seasonal Insolation Variability On Early Venus: Implications For Energy Budget
Venus and Earth are similar in bulk properties yet followed dramatically different climatic trajectories.
Posted inAtmospheres, Climate, Weather, Imaging & Spectroscopy, Magnetic Fields, Electromagnetism, bioelectricity,, Mars, Press Release, Space Weather & Heliophysics
MAVEN Discovers Space Weather Atmospheric Effect At Mars
In December 2023, scientists looking at Mars data stumbled across something completely unexpected — observations of an atmospheric effect never before seen in the Red Planet’s atmosphere.
Posted inAtmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Measurements And Predictions Of H2 Pressure-broadening Coefficients Of CO2 Absorption Lines For Exoplanet Atmosphere Studies
Accurate and comprehensive H2 pressure-induced broadening data for CO2 infrared lines over a wide temperature range are essential for modeling atmospheric opacity of exoplanets. However, available data are currently limited, […]
Posted inAtmospheres, Climate, Weather, Biophysics, Biosignatures & Paleobiology, Habitable Zones, Microbiology & Virology, Press Release, Sample Return
Bacteria Live In Fog Droplets And Clear Toxins From Earth’s Air
What if fog isn’t just misty air, but a living ecosystem?
Posted inExoplanets, -moons, -comets, Status Report
A Climate-Constrained Bayesian Inverse Method for JWST Rocky Exoplanet Eclipse Spectra: A Case Study of LTT 1445A b
Determining whether temperate rocky exoplanets orbiting M stars retain atmospheres is currently a central goal of exoplanet astronomy. To this end, the James Webb Space Telescope has begun searching for […]