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Asteroids delivered half of Earth's water, new sample suggests
Astronomy ^ | 5/1/19 | Korey Haynes

Posted on 05/01/2019 10:48:23 PM PDT by LibWhacker

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To: LibWhacker

Still find that very hard to believe.

I’m a simple person. I believe God put it there.


21 posted on 05/02/2019 7:17:59 PM PDT by Arlis
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To: wildbill

It amazes me to the degree of absurdity scientists will go to make up their BS theories as they deny God’s creation. God created the water, the air and the earth itself. PERIOD!


22 posted on 05/03/2019 4:24:12 AM PDT by Blue Highway
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To: SunkenCiv

It’s unclear to me what they are saying. Are they saying deuterium was the water native to the ancient Earth and the H2O came later from asteroids and other objects?


23 posted on 05/03/2019 11:22:31 AM PDT by colorado tanker
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To: colorado tanker
Most water contains one atom of oxygen and two atoms of hydrogen: H2O. But some water contains deuterium instead of conventional hydrogen. It's a heavier version of hydrogen that has an extra neutron at the center. When scientists find the source of Earth's water, they expect it will match the fraction of deuterium that scientists observe in Earth's oceans today. But measuring that is tricky to do without physical samples like those from Itokawa.
The ratio of regular water to heavy water doesn't match, but A) the asteroid has no atmosphere, so weathering in space (a real thing) has altered it, and B) not all the water was delivered from space, but if half of the water came from impacts, the ratio averages correctly. :^) A better test would be to snag those house-sized chunks of ice that continually hit the Earth's atmosphere and shatter at (usually) very high altitude, and see what the ratios are.

24 posted on 05/03/2019 11:44:10 AM PDT by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
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The Big Splash The Big Splash:
A Scientific Discovery That Revolutionizes the Way We View the Origin of Life,
the Water We Drink, the Death of the Dinosaurs, the Creation of the Oceans,
the Nature of the Cosmos, and the Very Future of the Earth Itself

by Louis A. Frank
with Patrick Huyghe


25 posted on 05/03/2019 11:47:32 AM PDT by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
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To: LibWhacker
:^)

26 posted on 05/03/2019 11:48:20 AM PDT by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
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To: wildbill

You are right the earth should look just like the moon all pock marked with craters except we have two things the moon does not. Weather and therefore erosion and plate tectonics which means the surface of the earth not only moves but the 70% of it that’s ocean crust gets eventually subducted and recycled by the mantle. No portion of oceanic crust on the planet is older than 180 ish million years compared to the continental cratons that are 2 billion years or so old. For those curious yes I am a geologist by profession cheers :-)


27 posted on 05/14/2019 8:14:59 PM PDT by JD_UTDallas ("Veni Vidi Vici")
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To: LibWhacker

Don’t tell the homeopathics,
it’ll just encourage them.


28 posted on 05/14/2019 8:21:50 PM PDT by sparklite2 (Don't mind me. I'm just a contrarian.)
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