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 Water from interstellar clouds to habitable worlds 5nvklj





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Water from interstellar clouds to habitable worlds

Dragon
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 Water from interstellar clouds to habitable worlds Empty Water from interstellar clouds to habitable worlds

Post by Dragon Sun Apr 18, 2021 3:44 am

Dutch astronomer Ewine van Dishoeck (Leiden University, the Netherlands), together with an international team of colleagues, has written an overview of everything we know about water in interstellar clouds thanks to the Herschel space observatory.

Furthermore, the researchers have calculated that most new solar systems are born with enough water to fill several thousand oceans.

Ewine van Dishoeck: "It's fascinating to realize that when you drink a glass of water, most of those molecules were made more than 4.5 billion years ago in the cloud from which our sun and the planets formed."


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 Water from interstellar clouds to habitable worlds 334pu7m
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Post by Dragon Sun Apr 18, 2021 3:46 am

 Water from interstellar clouds to habitable worlds Longawaitedr
Credit: ESA/ALMA/NASA/L.E. Kristensen

Journey of water from interstellar clouds to habitable worlds.

From top left to bottom right: water in a cold interstellar cloud, near a young, forming star with an outflow, in a protoplanetary disc, in a comet and in the oceans of an exoplanet.

The first three stages show the spectrum of water vapour measured by the HIFI instrument on the Herschel space observatory.

The signals from the cold interstellar cloud and from the protoplanetary disk have been exaggerated in this image by a factor of 100 compared to those from the young, forming star in the centre.


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 Water from interstellar clouds to habitable worlds 334pu7m
Dragon
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Post by Dragon Sun Apr 18, 2021 3:47 am



The formation of water on interstellar dust particles


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 Water from interstellar clouds to habitable worlds 334pu7m

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    Current date/time is Sun Jun 20, 2021 11:42 pm