US EditionPlanets Need More Water To Support Life Than Scientists Previously Thought - Astrobiology
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No chance for Arrakis: Unlike in the film "Dune", there is probably no extraterrestrial life on real desert planets – they lack a crucial ingredient, as planetary researchers have determined. Because even in the habitable zone, exoplanets need a minimum amount of water to maintain a life-friendly climate. The reason is that if water is missing, the carbon cycle is only limited and important climate feedbacks fail. Whether Tatooine, Arrakis or Ma…
Planets Need More Water To Support Life Than Scientists Previously Thought - Astrobiology
Unfortunately for science fiction fans, desert worlds outside our solar system are unlikely to host life, according to new research from University of Washington. Scientists show that an Earth-sized planet needs at least 20 to 50% of the water in Earth’s oceans to maintain a critical natural cycle that keeps water on the surface. Scientists […] The post Planets Need More Water To Support Life Than Scientists Previously Thought appeared first on …
Whether Tatooine, Arrakis or Mars: In science fiction, there is mostly extraterrestrial life on desert planets. But how realistic are these scenarios? Planetary researchers have now studied this more closely by means of models. The result: Even if planets orbit in the habitable zone of their star, they need a minimum amount of water that initially exists. [...] The article Can a desert planet be life-friendly? first appeared on wissenschaft.de.
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