Earth’s Moon, as imaged by the Galileo mission. (Credit: NASA/JPL/USGS)
Posted on 09/15/2013 4:30:04 PM PDT by SunkenCiv
Water found in ancient Moon rocks might have actually originated from the proto-Earth and even survived the Moon-forming event. Latest research into the amount of water within lunar rocks returned during the Apollo missions is being presented by Jessica Barnes at the European Planetary Science Congress in London on Monday 9th September.
The Moon, including its interior, is believed to be much wetter than was envisaged during the Apollo era. The study by Barnes and colleagues at The Open University, UK, investigated the amount of water present in the mineral apatite, a calcium phosphate mineral found in samples of the ancient lunar crust.
“These are some of the oldest rocks we have from the Moon and are much older than the oldest rocks found on Earth. The antiquity of these rocks make them the most appropriate samples for trying to understand the water content of the Moon soon after it formed about 4.5 billion years ago and for unravelling where in the Solar System that water came from,” Barnes explains.
Barnes and her colleagues have found that the ancient lunar rocks contain appreciable amounts of water locked into the crystal structure of apatite. They also measured the hydrogen isotopic signature of the water in these lunar rocks to identify the potential source(s) for the water.
"The water locked into the mineral apatite in the Moon rocks studied has an isotopic signature very similar to that of the Earth and some carbonaceous chondrite meteorites," says Barnes. "The remarkable consistency between the hydrogen composition of lunar samples and water-reservoirs of the Earth strongly suggests that there is a common origin for water in the Earth-Moon system."
(Excerpt) Read more at sciencedaily.com ...
Earth’s Moon, as imaged by the Galileo mission. (Credit: NASA/JPL/USGS)
Europlanet?
Does this mean that the French are going to claim the moon?
Evidence of Internal Moon Water Found
universetoday.com | August 27, 2013 | Jason Major
Posted on 08/27/2013 1:59:14 PM PDT by BenLurkin
http://www.freerepublic.com/focus/chat/3059457/posts
Small Comets and Our Origins
University of Iowa | circa 1999 | Louis A. Frank
Posted on 10/19/2004 11:13:25 PM PDT by SunkenCiv
http://www.freerepublic.com/focus/bloggers/1250694/posts
Euronation is probably the source of the water.
LOL! *SNORT*
OK. ‘Splain this to me, a total NOVICE on this space/universe/star stuff...
Is the Moon a chunk of Earth that went flying off at one point during The Big Bang or something?
And how come all of our planets are so d@mn ROUND? Why are they all perfectly spherical? Is that because of our Sun’s gravitational pull?
(Bet you didn’t know a hayseed like me could even SPELL ‘spherical,’ LOL!)
And does the ‘Sun’ have a name? Does the ‘Moon’ have a name?
Inquiring minds need to know! :)
Good old moon — quite the character with its blotches and craters. Too bad we don’t have video of the event that caused the big crater on its bottom side. That must have been incredible. /off topic
The sun and the moon are named “Sol” and “Luna”, respectively.
Oft used in “science” media stories are “may” and “might”. These words are much advanced in the “origin” of life’n stuff articles... but “may” and “might” are funny words in that they also mean “may not” and “might not”. Just a thought.
That's just what happened when God rolled them between his palms.
The sun is Jewish?
(Snort)
The moon is Italian (crema di formaggio tipo Begiunn)?
(Snort, Snort)
The most widely accepted explanation for the origin of the Moon involves a collision of two protoplanetary bodies during the early accretional period of Solar System evolution, roughly 4.5 billion years ago. This is long after the Big Bang, which was about 13.8 billion years ago.
And how come all of our planets are so d@mn ROUND?
Gravity pulls them into that shape.
Why are they all perfectly spherical? Is that because of our Sun’s gravitational pull?
It's not because of the Sun, and they're not perfectly spherical. Saturn, for instance, has an equatorial radius of about 60,000 kilometers but a polar radius of only 54,000 kilometers.
And does the ‘Sun’ have a name? Does the ‘Moon’ have a name?
Sure...in English, "The Sun" and "The Moon" :-)
They're sometimes referred to by their Latin names, "Sol" and "Luna", respectively, to distinguish them from other stars and moons.
Some areas of science are more speculative than others, granted.
The Earth-like water would have been deposited on the moon from materials ejected in this event (geologists made a big mistake about 60 years ago - new data makes obsolete a fundamental assumption, in this case continental drift):
http://www.threeimpacts-twoevents.com/wp-content/uploads/2013/05/Geologic-Sensemaking-Simultaneous-Impacts-10May2013.pdf
The current consensus is that a Mars-sized planet smashed into the proto-Earth a bit more than 4 billion years ago, leading to the formation of the Moon, made up about 50 percent of the proto-Earth and 50 percent the impactor. In this model much of the rest of the mass of the impactor got added to the proto-Earth.
Mars-sized is one-eighth present Earth mass.
Our Moon is 1 percent the mass of the Earth.
You’d think after a nice summary like that, I’d just stop, but the fact is, the model is IMHO incorrect.
When the Days Were Shorter
Alaska Science Forum (Article #742) | November 11, 1985 | Larry Gedney
Posted on 10/04/2004 10:31:59 AM PDT by SunkenCiv
http://www.freerepublic.com/focus/fr/1234919/posts?page=4#4
A Celestial Collision
Alaska Science Forum | February 10, 1983 | Larry Gedney
Posted on 09/15/2004 9:04:28 AM PDT by SunkenCiv
http://www.freerepublic.com/focus/chat/1216757/posts
In the shadow of the Moon
New Scientist | 30 January 1999 | editors
Posted on 08/31/2004 8:42:25 AM PDT by SunkenCiv
http://www.freerepublic.com/focus/chat/1203912/posts
OK OK We stopped at the moon for a bathroom break on a trip to Venus. I told John not to drink that Big Gulp before we left.
For one thing. NONE of the planets are “Perfectly” Spherical. Each and every one of them bulges at their equator. The faster they spin, the larger the bulge.
Interesting Fact - Although we have thousands of mountains (consider Mt.Everest) the earth is in effect smoother that a bowling ball.
There are MANY theories but so far they are all just "Theories". Some of these seem to make sense and seem to be supported by various such theories but to-date NONE have been proven to be absolutely correct.
And how come all of our planets are so d@mn ROUND? Why are they all perfectly spherical? Is that because of our Sun’s gravitational pull?
It is due almost primarily due to GRAVITY. You can say erosion but that is just a product of GRAVITY. You can say it is it is due to the spin but then again that is due to GRAVITY.
(Bet you didn’t know a hayseed like me could even SPELL ‘spherical,’ LOL!)
It just so happens that I personally know many hayseeds. Some even consider me one such individual - hayseed (that is).
And does the ‘Sun’ have a name? Does the ‘Moon’ have a name?
The SUN is called "SOL" or just "The Sun". In other languages and religions they gave it different names - to many to waste my time enumerating.
The MOON is called "The Moon" or "Luna". AGAIN - Different languages and different religions gave it different names.
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