The rotation of a protoplanetary disc (a disc where planets are being formed) has been observed directly for the very first time by mapping the emissions from the dust grains […]
gas giant
Posted inExoplanets, -moons, -comets, Gas Giants, Habitable Zones, Magnetic Fields, Electromagnetism, bioelectricity,, Press Release
Strange Winds Reveal Strongest Hints Yet Of Magnetic Activity In Exoplanets
By measuring the strength of the invisible magnetic fields of seven ultra-hot Jupiters, astronomers have taken a major step toward understanding planets beyond our Solar System. A new study published […]
Posted inAI - Data - Apps - Cybernetics, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Brown Dwarfs, Gas Giants, Nomenclature, Systematics, Natural History, Status Report, Stellar Cartography
Spectral Classification Of Brown Dwarfs Using Machine Learning
Brown dwarfs are compact objects that do not reach temperatures high enough to produce sustained hydrogen fusion. Consequently, they cool over time, gradually evolving through later spectral types.
Posted inAstrochemistry, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Gas Giants, Imaging & Spectroscopy, Jupiter, Status Report
Detection Of Propadiene (CH2CCH2), Propene (C3H6) And Non-detection Of Propane (C3H8) In Jupiter’s Northern Polar Stratosphere
We report the first detection of stratospheric propadiene (CH2CCH2) and propene (C3H6) at Jupiter’s mid-to-high northern latitudes using IRTF-TEXES measurements recorded on March 5-6, 2025.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Gas Giants, Imaging & Spectroscopy, Status Report, Water/Hycean Worlds & Oceanography
Astronomers Observe Exoplanet Atmospheres With New Cloud-detecting Method
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 […]
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 inAstronomy & Telescopes, Atmospheres, Climate, Weather, Beta Pictoris, Brown Dwarfs, Exoplanets, -moons, -comets, Gas Giants, Status Report
Chemistry And Isotope Ratios Of Substellar Atmospheres In The β Pictoris Young Moving Group
Measuring the chemical and isotopic compositions of gas giants and brown dwarfs provides insights into their formation pathways and birth environments. 2MASS J0249-0557 c is an L2-type planetary mass companion […]
Posted inAstrochemistry, Astrogeology, Desert Worlds, Exoplanets, -moons, -comets, Gas Giants, Ice Giant, Icy Worlds, Status Report, Water/Hycean Worlds & Oceanography
ORCHARD: A General Planetary Evolution Code
We present ORCHARD, a publicly available planetary evolution code based on the gas giant evolution code, APPLE, capable of modeling the evolution and structures of terrestrial, super-Earth, sub-Neptune, Neptune, and […]
Posted inAstrochemistry, Astrogeology, Astronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Gas Giants, Icy Worlds, Imaging & Spectroscopy, Status Report
Oxygen And Nitrogen Isotopologues On Cold COCONUTS-2b Observed With MIRI/MRS
Linking the composition of gas giant planets to their formation paths has long been a goal in exoplanet science. Especially, cold gas giants with temperatures below ∼500K have been out […]
![WASP-39b transmission spectra and cloud scenarios. Spectra are observed with JWST (orange), HST (magenta), and VLT (green) in comparison to models with different Fe content: full IWF Graz cloud model (black line), Fe[s] replaced (dark gray), FeS[s] replaced (middle gray), and all Fe-binding materials replaced (light gray). The Fe-free mixed-material cloud compositions provide a good fit in the near-IR but not in the optical. — astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/04/Exoplanet-climate.png?resize=1200%2C718&ssl=1)
Posted inExoplanets, -moons, -comets, Gas Giants, Status Report
Exoplanet Climate Characterization With Transit Asymmetries
Context. Space missions such as CHEOPS, JWST, and PLATO facilitate detailed characterization of exoplanets, particularly close-in gas giants and their wide range of global temperatures and climate regimes.