Planetary-mass objects and brown dwarfs at the transition from relatively red L dwarfs to bluer mid-T dwarfs (Teff∼1300 K) show enhanced spectrophotometric variability.
Clouds
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Status Report, Water/Hycean Worlds & Oceanography
Clouds And Seasonality On Terrestrial Planets With Varying Rotation Rates
Using an idealised climate model incorporating seasonal forcing, we investigate the impact of rotation rate on the abundance of clouds on an Earth-like aquaplanet, and the resulting impacts upon albedo […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Neptune, Press Release, Uranus
Neptune-like Exoplanets Can Be Cloudy Or Clear — New Findings Suggest The Reason Why
The study of “exoplanets,” the sci-fi-sounding name for all planets in the cosmos beyond our own solar system, is a pretty new field. Mainly, exoplanet researchers like those in the […]
Posted inAtmospheres, Climate, Weather, Biophysics, Genomics, Proteomics, Bioinformatics, Microbiology & Virology, Status Report, Venus
Clouds, Oases For Airborne Microbes – Differential Metagenomics/ Metatranscriptomics Analyses Of Cloudy And Clear Atmospheric Situations
Editor’s note: with recent speculation about the potential habitability of the clouds of Venus and the long-hypothesized notion of airborne life forms on Saturn and Jupiter these studies from Earth […]
Posted inAriel Mission, Astronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
ARES VI: Viability Of One-dimensional Retrieval Models For Transmission Spectroscopy Characterization Of Exo-atmospheres In The Era Of JWST And Ariel
Observed exoplanet transit spectra are usually retrieved using 1D models to determine atmospheric composition while planetary atmospheres are 3D.
Posted inAtmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Habitable Zones, Imaging & Spectroscopy, Status Report, Venus
Stability of 20 Biogenic Amino Acids in Concentrated Sulfuric Acid: Implications for the Habitability of Venus’ Clouds
Scientists have long speculated about the potential habitability of Venus, not at the 700K surface, but in the cloud layers located at 48-60 km altitudes, where temperatures match those found […]
Posted inAstrochemistry, Astronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Gas Giants, Imaging & Spectroscopy, Jupiter, Status Report
Spatial Variations of Jovian Tropospheric Ammonia via Ground-Based Imaging
Optical bandpass-filter observations can be simply processed to determine similar horizontal ammonia distributions above the Jovian cloud tops as mid-infrared and microwave observations.
Posted inAI - Data - Apps - Cybernetics, Ariel Mission, Astronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Simulation-based Inference for Exoplanet Atmospheric Retrieval: Insights from winning the Ariel Data Challenge 2023 using Normalizing Flows
Advancements in space telescopes have opened new avenues for gathering vast amounts of data on exoplanet atmosphere spectra. However, accurately extracting chemical and physical properties from these spectra poses significant […]
Posted inAstrochemistry, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Gas Giants, Imaging & Spectroscopy, Jupiter, Press Release
Mapping Water Clouds On Jupiter With Ultraviolet Data From Hubble
Released in honor of Jupiter reaching opposition, which occurs when the planet and the Sun are in opposite sides of the sky, this view of the gas giant planet includes […]
Posted inAstrochemistry, Astrogeology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Detecting Molecules In Ariel Low Resolution Transmission Spectra
The Ariel Space Mission aims to observe a diverse sample of exoplanet atmospheres across a wide wavelength range of 0.5 to 7.8 microns. The observations are organized into four Tiers, […]