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Atmosféry planet
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Atmosféry planet

Atmosféra je plynný obal planety, který drží gravitace. Představte si ji jako „deka“ nebo „pokožka“. V naší sluneční soustavě má každá planeta jiný styl: Merkur je téměř bezbranný, zatímco Venuše má hustou, dusivou deku z mraků. Země má dokonalou rovnováhu pro život, zatímco plynní obři jako Jupiter jsou v podstatě jen obří atmosféry bez pevného povrchu. Chrání nás před radiací a regulují teplotu.
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Latest news from Atmosféry planet

Patchy water clouds and chemical changes observed on brown dwarf WISE 0855
icon17. 10. 2026
iconHvězdy | Hnědí trpaslíci | Atmosféry plane
Image: Patchy water clouds and chemical changes observed on brown dwarf WISE 0855
WISE 0855 represents the coldest known brown dwarf, an object too large to be a planet but too small to sustain the nuclear fusion that powers stars. With a temperature of roughly 265 Kelvin, it is cold enough to host complex atmospheric phenomena similar to those seen on gas giant planets in our solar system. Observations reveal that this object is not uniform but features patchy water clouds distributed throughout its atmosphere, which influence its light patterns over time. To study this, ...
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Atmospheric structure of WASP-94 A b revealed through new limb asymmetry method
icon16. 10. 2026
iconHvězdy | Exoplanety | Atmosféry plane
Image: Atmospheric structure of WASP-94 A b revealed through new limb asymmetry method
A new analysis of WASP-94 A b reveals a 415 K temperature difference between its morning and evening sides. The evening atmosphere shows signs of H2O, CO2, CO, and H2S, while the morning side remains obscured by aerosols....
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Atmospheric composition of hot Jupiter KELT-2A b reveals chemical history
icon15. 10. 2026
iconHvězdy | Exoplanety | Horký Jupiter | Atmosféry plane
Image: Atmospheric composition of hot Jupiter KELT-2A b reveals chemical history
New observations of hot Jupiter KELT-2A b confirm water vapor in its atmosphere. The planet shows a carbon-to-oxygen ratio similar to its host star but with overall lower metallicity, suggesting a complex migration history from far out in its star system....
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Orbital and atmospheric evolution of the mini-Neptune TOI-2257 b
icon15. 10. 2026
iconHvězdy | Exoplanety | Červení trpaslíci | Superzemě | Atmosféry planet | TESS
Image: Orbital and atmospheric evolution of the mini-Neptune TOI-2257 b
The exoplanet TOI-2257 b orbits its star once every 35 days with a high eccentricity. New models suggest its atmospheric and orbital fate depends on whether it is a gas-rich mini-Neptune or a rocky super-Earth. Higher eccentricity would confirm a gaseous nature....
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Escaping atmosphere of the ultrahot Jupiter KELT-18 b reveals metastable helium
icon14. 10. 2026
iconHvězdy | Exoplanety | Horký Jupiter | Atmosféry plane
Image: Escaping atmosphere of the ultrahot Jupiter KELT-18 b reveals metastable helium
Researchers have detected metastable helium escaping from the ultrahot Jupiter KELT-18 b. This confirms the massive gas giant is undergoing active atmospheric photoevaporation. KELT-18 b is now the most massive planet found with this specific helium signature....
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