NASA Finds water on the Moon

[David Levy]

NASA Finds water on the Moon

 

How the water had been delivered???

 

 

http://www.greenmuze.com/nature/water/1819-nasa-finds-moon-water.html

 

 

"NASA has confirmed that there are'significant' quantities of water on the Moon, based on the results of their LCROSS satellite mission that crashed a rocket booster and then a spacecraft into the Cabeuscrater at the Moon's south pole."

 

Howit had been delivered?

 

Wiki: http://en.wikipedia....iki/Lunar_water

 

"Water may have been delivered to the Moon over geological timescales by the regular bombardment of water-bearing comets, asteroids and meteoroids ^[9]or continuously produced in situ by the hydrogen ions (protons) of the solar windimpacting oxygen-bearing minerals.^[10]"

 

 

However,there is water on Earth, on Mars and now on the Moon.

 

Therefore, what is the chance that the water was there at the day of the star creation???

There are several theories which should explain how the water had been delivered, but somehow it sounds like science fiction...

 

Earth– The Earth had been created 4.5 Billion years ago.

 

There is evidence that there was water on Earth at least 4.4 Billion years ago.

 

Now we know that there is water on the Mars and on the Moon.

 

So,why can't we estimate that the water was integrated in the mass which generate the Earth, Mars & moon???

 

Therefore, the water was there from day one...

 

 

Edited October 15, 2012 by David Levy

[Airbrush]

"....Therefore, what is the chance that the water was there at the day of the star creation???

There are several theories which should explain how the water had been delivered, but somehow it sounds like science fiction...

 

Earth– The Earth had been created 4.5 Billion years ago.

 

There is evidence that there was water on Earth at least 4.4 Billion years ago....."

 

What are the "several theories"? How is water delivered to Earth/Moon/Mars by asteroid/comet collisions "sounds like science fiction"?

 

What is the evidence for water on Earth at least 4.4 Billion years ago?

[David Levy]

To: Airbrush

 

What is the evidence for water on Earth at least 4.4 Billion years ago?

 

 

 

Please see:

 

http://en.wikipedia.org/wiki/Oldest_dated_rocks

 

 

"The zircons from the Western Australian Jack Hills returned an age of 4.404 billion years, interpreted to be the age of crystallization. These zircons also show another interesting feature; their oxygen isotopic composition has been interpreted to indicate that more than 4.4 billion years ago there was already water on the surface of the Earth."

[Airbrush]

"....Therefore, the water was there from day one..."

 

So there could have been liquid water on the surface of Earth until the late heavy bombardment, which turned the surface to molten rock and the water vaporized and got blown away by solar wind and later, over several Billion years, comets and asteroids delivered the current amounts of water?

Edited October 15, 2012 by Airbrush

[David Levy]

To: Airbrush

 

"So there could have been liquid water on the surface of Earth until the late heavy bombardment, which turned the surface to molten rock and the water vaporized and got blown away by solar wind and later, over several Billion years, comets and asteroids delivered the current amounts of water?"

 

 

Why???

 

 

There is a solid evidence that the water was on the surface of the Earth almost from the day that the Earth had been created.

 

Why do you insist about a theory that water had been vaporized from the Earth and later on new water had been delivered by comets and asteroids?

 

Don't you think that it is much more logical to estimate that the water was there for at least 4.4 billion years ago and it stay on Earth till now?

 

Therefore, there is no real need to ask comets and asteroids for delivery support…

 

Never the less, even with the "vaporized" theory, the water was just there from day one...

Edited October 16, 2012 by David Levy

[Ophiolite]

The difficulty lies in isotope ratios and that difficulty is there for every proposed origin for water. For example virgin mantle ratios do not match any sampled meteorite composition, suggesting bulk earth did not form from CI chondrites as generally assumed. Neon ratios are wrong for cometary origins, if comet composition is as sampled thus far. Early water, as Levy points out, is clearly indicated by the zircon studies, yet the Late Heavy Bombarment is very real.

 

This is a fascinating issue on which it is still to early to form a comfortable conclusion, even though almost every month brings a team of researchers almost doing exactly that.

[Airbrush]

"Why do you insist about a theory that water had been vaporized from the Earth and later on new water had been delivered by comets and asteroids?"

 

Because in recent programs I have seen on TV, with findings from 2010, the experts best guess is that the early Earth was baked dry by its' molten state from the late heavy bombardment, which lasted for 10s or 100s of Million years. Even though most of the water had baked away from the planet, there could still remain traces of the original liquid water as old as 4.4 Billion years, which you refer to. The vast amount of water on Earth now can only be explained as having been delivered over the past several Billion years by asteroids and comets. And if these were plastering the Earth with water, they would do the same to the Moon and Mars. Why do you so quickly reject the best guesses by the experts?

Edited October 16, 2012 by Airbrush