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Ozeanplaneten
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Ozeanplaneten

Ozeanplaneten oder Wasserwelten besitzen enorme Mengen Wasser – weit mehr als die Erde, wo Ozeane nur einen Bruchteil der Gesamtmasse ausmachen. Wasser kann die gesamte Oberfläche kilometertief bedecken oder sich wie auf dem Jupitermond Europa unter einer Eisschicht verbergen. Ob Wasser flüssig bleibt, hängt vom Abstand zum Stern und der Atmosphäre ab. Diese Welten haben eine geringere Dichte als reine Felsplaneten. Unter dem extremen Druck des tiefen Ozeans bildet sich am Grund oft exotisches Hochdruckeis, das die Wasserschicht vom Gesteinskern trennt.
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Latest news from Ozeanplaneten

Atmospheric composition of sub-Neptune planets around Red dwarf stars reveals new hybrid class
icon6. 10. 2026
iconSterne | Exoplaneten | Rote Zwerge | James-Webb-Weltraumteleskop | Planetenatmosphären | Ozeanplanete
Image: Atmospheric composition of sub-Neptune planets around Red dwarf stars reveals new hybrid class
Sub-Neptune planets orbiting Red dwarf stars are typically categorized into two groups: gas dwarfs, which consist of a rocky core surrounded by a primary hydrogen and helium envelope, and water worlds, which are volatile-rich bodies that formed in the colder regions of their star systems. Distinguishing between these two types based solely on mass and radius is often difficult because their physical characteristics can overlap, making their observed properties appear identical even if their orig...
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Methanol search in the water-rich planet-forming disk around HL Tauri
icon5. 3. 2026
iconSterne | Exoplaneten | Planetenentstehung | Junge Sternobjekte | Ozeanplanete
Image: Methanol search in the water-rich planet-forming disk around HL Tauri
A new study searched for methanol in the planet-forming disk around HL Tauri but found none. The results suggest thick dust may hide methanol, making its detection difficult. This could mean HL Tau's chemistry is different from other young stars....
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Three super-Earths TOI-260 b, TOI-286 b, and TOI-286 c confirmed
icon11. 6. 2024
iconSterne | Exoplaneten | Supererde | Ozeanplanete
Image: Three super-Earths TOI-260 b, TOI-286 b, and TOI-286 c confirmed
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New analysis of the nearby LHS 1140 system: LHS 1140 b is either a temperate mini-Neptune or a water world
icon24. 10. 2023 (akzeptiert)
iconSterne | Exoplaneten | Ozeanplanete
Image: New analysis of the nearby LHS 1140 system: LHS 1140 b is either a temperate mini-Neptune or a water world
...
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