Cold plasma layer detected high above Earth, page 1
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Topic started on 26-1-2012 @ 08:27 PM by Pauligirl
Cold plasma layer detected high above Earth
May shed light on how planet interacts with storms of charged particles from sun
www.msnbc.msn.com...
Cold, electrically charged particles have long been suspected to exist tens of thousands of miles above the Earth's surface, and now scientists have detected such ions there for the first time. And they are significantly more abundant at those heights than previously imagined.

Cold is, of course, a relative term. Although these low-energy ions are 1,000 times cooler than what researchers might consider hot plasma, these particles still have an energy that would correspond to about 1 million degrees Fahrenheit. But because the density of the "cold" ions in space is so low, satellites and spacecraft can orbit through them without getting destroyed.



“The new cold plasma results might also help researchers explain atmospheric traits of other planets and moons, including alien worlds or exoplanets, André said.”

He also says it may shed light on what happened to Mars' atmosphere.


reply posted on 26-1-2012 @ 09:08 PM by Pauligirl
reply to post by Illustronic



I think they address that here:
However, detecting cold plasma at those high altitudes has proven difficult. Spacecraft that far up accumulate an electrical charge, due to sunlight that makes them repel the cold ions.

The breakthrough came with one of the European Space Agency's four CLUSTER spacecraft. These are equipped with a detector composed of thin wire arms that measure the electric field between them as the satellite rotates.


I have to quote them, because while I find it interesting,I don't really understand it.


reply posted on 26-1-2012 @ 09:33 PM by Illustronic
reply to post by Pauligirl



Well we understand the thin wires are connected to a larger spacecraft, at least. I'm not sure why they would mention spinning, if these ions are traveling, like, very very fast.

Maybe my point is moot, however, I respect the knowledge you share here.
edit on 26-1-2012 by Illustronic because: (no reason given)

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