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A new analysis of dust from the comet Wild 2, collected in 2004 by NASA's Stardust mission, has revealed an oxygen isotope signature that suggests an unexpected mingling of rocky material between the center and edges of the solar system. Despite the comet's birth in the icy reaches of outer space beyond Pluto, tiny crystals collected from its halo appear to have been forged in the hotter interior, much closer to the sun.
The result, reported in the Sept. 19 issue of the journal Science by researchers from Japan, NASA and the University of Wisconsin-Madison, counters the idea that the material that formed the solar system billions of years ago has remained trapped in orbits around the sun. Instead, the new study suggests that cosmic material from asteroid belts between Mars and Jupiter can migrate outward in the solar system and mix with the more primitive materials found at the fringes.
source document..
Originally posted by mapsurfer_
I wonder if the comet material has any DNA in it's structure? That would sort of prove if life came from elsewhere. I had seen some reports about comet material found in the antarctic region that contained fossil material which begs the question for further research.
Originally posted by full997
The scientists are just doing what we all do, scrabble in the dark looking for answers.
The thing is that for all the genius and advancements of the world we still don't know much with regards to space etc.
If I understood it right, the electrical comet model does not explain what they found.
Originally posted by daz__
the electrical comet model explains this perfectly and yet these phd's are scratching their heads..
Originally posted by squiz
Actually in the Electric universe a asteroid and a comet basically are the same thing the difference is comets have more elliptical orbits that expose them to the varying electric field of the sun.
The difference in electric potential is what causes the coma and tail, this is why very little ice has ever been found on comets and this is why the dust samples are closer to what is found in meteorites.
Asteroids are at equilibrium with the electric field, Comets are on elliptical orbits and are moving through the varying field.
Originally posted by StellarX
Originally posted by squiz
Equilibrium? Isn't this just a question of orbit orientation? I like the electric model as much as the next well informed guy but i'm not sure that we have to abuse the model to explain every observation we make.
Either way Tom van Flandern has the credentials and the predictions
Stellar
Originally posted by squiz
Yep daz, electrical equilibrium.
Even some asteroids have shown some temporary cometary activity, this is impossible under the dirty snowball model.
[edit on 26-9-2008 by squiz]
For something to make an arc, even in near vacuum, the difference in potential must be very high. In fact, after writing the previous sentence I got one more doubt, if near vacuum is a better electricity conductor than air would a large difference in potential create an arc or just a smaller discharge? But I will let that doubt for latter.
I think a small object approaching a much larger charged with an opposing charge would have its charge nullified by the stronger electrical charge before any arching could happen.
Also, if Tunguska was the result of some electrical discharge or arc, where are the common by-products of such a discharge, like large areas of molten everything (I was going to say rocks, but an arc can reach a temperature high enough to melt everything)?
Having worked some times with an arc welder I am used to see what happens in those conditions, and that is one of the things that makes me doubt that craters are the result of some electrical discharge.
Another thing, if there are objects inside the Solar System that have different charges, shouldn't they be attracted by those with the opposite charge and repelled by those with the same? I have never seen any reference of any object being repelled, only attracted.