[astro-ph.EP] Transmission spectroscopy increasingly reduces exoplanet spectra to derived compositional metrics, such as C/O, O/H, and mean molecular weight (MMW), but these quantities do not carry molecular abundance uncertainties in […]
atmosphere
Posted inExoplanets, -moons, -comets
A New Method For Constraining 3D Exoplanet Atmospheres: Application To WASP-94A b’s Panchromatic Spectrum
[astro-ph.EP] A growing number of transiting exoplanets exhibit spectroscopic evidence that their leading and trailing limbs differ. Interpreting these observations is now the limiting step.
Posted inIce Giant
SwRI Staff Contribute To New Ideas About Origins Of Uranus And Neptune
[SwRI] Uranus and Neptune are often considered planetary twins due to their many similar characteristics, including size, mass and atmospheric conditions, and have long been thought to have pulled from […]
![Schematic depicting how each topic interacts with one another and the key processes responsible for this interaction. -- [astro-ph.IM]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/10/The-Atmospheric.png?resize=1200%2C725&ssl=1)
Posted inMars
The Atmospheric Chemistry and Surface Interactions on Mars (ACSIOM) Workshop 2025
[astro-ph.IM] The ACSIOM workshop was held in Cambridge from 10th-12th November 2025. Its primary aims were twofold: 1) to gather UK researchers involved in Mars atmospheric science to identify current […]
Posted inExoplanets, -moons, -comets
WALTzER: Wide-band Atmospheric Laboratory For Transiting Exoplanet Research
[astro-ph.EP] Understanding the origin and evolution of planetary atmospheres, and the connection between their lower and upper atmospheric layers, remains a fundamental challenge in exoplanet science.
Posted inAtmospheres, Climate, Weather
Excess Oxygen Stored In Deep Earth Magma May Help Explain How Earth’s Atmosphere Became Oxygen-rich
[Science China Press] The research team, led by Dr. Yanhao Lin and Dr. Ho-kwang Mao of the Center for High Pressure Science and Technology Advanced Research (HPSTAR), together with Prof. […]
![[LEFT] Extended Seasonal evolution of total atmospheric optical depth across 669 Sol (a) Total atmospheric optical depth for the control simulation (b) Total atmospheric optical depth under singleinjection aluminium nanoparticle substitution (c) Total optical-depth anomaly between the seeded and control simulations, showing the temporal evolution of the radiative effect associated with the aerosol substitution Extended [RIGHT]] Seasonal evolution of aerosol optical depth across 669 Sol (a) Aerosol optical depth for the control simulation, showing the spatial and temporal distribution of the background aerosol (b) Aerosol optical depth under single-injection aluminium nanoparticle substitution (c) Aerosol optical-depth anomaly between the seeded and control simulations, showing the evolution and decay of the aerosol optical signal in the absence of continuous replenishment. -- [astro-ph.EP]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/10/3D-Global.png?resize=1200%2C714&ssl=1)
Posted inTerraforming & Geoengineering
3D Global Climate Simulations of Synthetic Mars Warming
[astro-ph.EP] Artificial warming via engineered aerosols presents a novel pathway to bypass volatile scarcity on modern Mars.
Posted inExoplanets, -moons, -comets
Trailblazing Technique Uncovers The Real Shape Of Scorching-hot Exoplanet Atmospheres
[University of Bristol] Until now the alien white-hot worlds of exoplanets have been depicted as circular, but new research has revealed the true shape of their atmospheres to be a […]
Posted inAtmospheres, Climate, Weather
Simulations Of The Evolving Ozone Layer: Implications For The Early Earth, Exoplanets, And The Search For Life
[astro-ph.EP] Over 4 billion years, Earth’s atmosphere has been transformed from a composition devoid of molecular oxygen (O2) to one where O2 is now 21% of our modern atmosphere by […]
![Pressures determined by ruby fluorescence measurements at different locations within the sample chamber: (a) during powder compaction, (b) after decompression. No ruby fluorescence spectrum was obtained on the sphere marked with an asterisk, likely due to insufficient Cr doping, resulting in an undetectable fluorescence signal. -- [astro-ph.EP]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/10/Elastic.png?resize=1200%2C720&ssl=1)
Posted inTitan
Elastic Properties of Titan Tholins Revealed by Brillouin Spectroscopy
[astro-ph.EP] Titan tholins, complex organic solids synthesized by simulating photochemical processes in Titan’s atmosphere, are widely regarded as analogs to organic surface materials on the Saturnian moon.