Apollo 17 Soil Matches Ancient Earth's Ocean Ridges In Water Content
StartsWithABang writes: They say that one of the most exciting phrases to hear in science is not "eureka!" but "that's funny," and the Apollo 17 astronauts, just over 43 years ago, certainly got such a moment when they discovered orange soil just beneath the grey regiolith. What turned out to be volcanic glass with tin inclusions had another surprise: olivine deposits that showed signs that they contained significant amounts of water inclusions when they were baked, at about ~1200 parts-per-million. This matches the water levels in Earth's upper mantle along ocean ridges, providing further evidence for the giant impact hypothesis and a common origin for the Earth and Moon.
Further proof they were actually on earth! Of course it matches what's just below the earth's regolith.
FTA: "it’s the same concentration of water as rocks found in Earth’s interior! In other words, if you ever doubted that the rocks from the Moon and the rocks from the Earth came from the same place..."
Yep, the Nevada desert. Thanks Stanley!
Political correctness is really just herd psychology pushed by insecure people who desperately seek social conformity.
The more we learn about the Earth and the more we study Mars, the moon or measure exo-planets or their solar systems ...
The more and more unusual Earth seems to become. Especially with the Earth having a giant moon.
Who is the "they" who said this? It is the most ignorant thing I've heard today! It is the difference, to paraphrase Twain, between a lightning bug and a lightning bolt. "That's funny" is a significant observation; Eureka! is a celebration, a dance, to an personal intellectual achievement. One cannot sit still in such moments, one shouts, screams, runs in circles, speaks in tongues, laughs uncontrollably and like that.
"That's funny" is simply observational. There is no celebration, just collection of information which may spark curiosity. That curiosity, if acted upon, can become understanding, which, after further work, can lead to a Eureka!, but they are in no way comparable.
Perhaps not everybody has had a Eureka! moment, but most people have had a "that's funny," so they may not see the difference.
Euekas are orgasms of the mind.
I think most Republicans could get behind funding mental health treatment for you.
This seems to be presenting an argument for more scientists (instead of just astronauts) and/or on-site human exploration instead of remote-controlled robots.
However, the argument for both is weak. A regular astronaut and remote rover could spot orange soil also.
In fact, a rover could have more "color" filters instead of be limited to the 3 ranges (cones) that human eyes have. There can be odd spectral variations that human eyes just can't detect, including the infra-red and ultraviolet range.
And for the same money, bots can cover far more territory and linger in an interesting spot, if needed.
Table-ized A.I.
"Republicans" and "get behind funding anything other than pork" are not compatible.
You foist another Forbes link upon us to tell us about a discovery that's 43 years old?
Sheesh.
systemd is Roko's Basilisk.
"Democrats" and "get behind funding anything other than pork" are not compatible.
FTFY.
Is that the same as "regolith"
It is astounding how quickly it cooled off when it separated from the earth 6,000 years ago
http://saveie6.com/
I say: Bring it back! Its time to reunite the long lost moon material back to our motherworld where it belongs!
It's much better when made the old fashioned way, with milk and real cheese, then baked in the oven. Kraft made with the powdered cheese product is a poor representation.
I didn't actually know that "NASA/Arizona State University," had an online, high resolution "Digital Petrographic Slide Collection" ; not surprising. I'll dig into that more. Nice pictures. The fascinating corrosion textures on the surface of the glass grains really raise a lot of questions. Which Ethan doesn't notice. (OK - I'm biased - I was repairing a petrological microscope for the last couple of days. But the textures are obviously weird.) Perthite textures in what are described as glass grains also go completely unremarked, though that is probably the reason the photograph was taken in the first place.
But these rocks (soils if you prefer) are interpreted as the results of fire fountains playing in lava eruptions of the lunar past. Which is great - except ... what drives fire fountains? The exsolution of volatiles and their concentration into the upper parts of magma chambers. And the amount of this material that Schmitt and Cernan found indicates that it's a rare circumstance producing a rare deposit.
So, this tells us what about lunar igneous petrogenesis? That after considerable concentration, the low levels of volatiles (not just water) in lunar bulk material can be concentrated to levels similar to those in magmas on Earth.
Which doesn't actually tell us very much that is new. Which is probably why the paper he references is from 2011 (and paywalled, with everything in the article coming from the abstract. Implying a lack of institutional access to one of the premier science journals of the world.
What I'd like to know - and is completely unaddressed by the article, is just why these images are being re-processed and uploaded onto FLIKR or FACEBOOK !!! instead of there being a NASA image archive from which the originals (or their highest-available resolution scans) can be downloaded. That seems ... almost designed to fuel conspiracy theorists. But this appears to have escaped Mr BangsWhenItStops.
Who is Ethan Siegel? Here we know him as TooLowAnOctaneRating. On his Frobs column he asserts he is "professor at Lewis & Clark" (assumed present tense, as no indication there of a change in tense), but http://college.lclark.edu/depa... doesn't list him. Odd that. Though he was a visiting professor there in 2010 (their search engine is down at the moment). Which is very much in the past tense, according to my calendar. What about his "NASA columnist" claim ... Ah, it seems he wrote for a kid's site called "The Space Place" ; again, past tense.
So basically, he is, as his posting pattern already suggested, a jobbing blogger trying to earn a crust from clickbait adverts. Which is a profession, of sorts. But he certainly doesn't seem to be contributing to science any more.
Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"