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}----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there

 
Fish

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12/23/2009 03:36 PM

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}----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
[link to science.nasa.gov]


Interesting times ahead?


Voyager Makes an Interstellar Discovery
12.23.2009

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December 23, 2009: The solar system is passing through an interstellar cloud that physics says should not exist. In the Dec. 24th issue of Nature, a team of scientists reveal how NASA's Voyager spacecraft have solved the mystery.

see caption"Using data from Voyager, we have discovered a strong magnetic field just outside the solar system," explains lead author Merav Opher, a NASA Heliophysics Guest Investigator from George Mason University. "This magnetic field holds the interstellar cloud together and solves the long-standing puzzle of how it can exist at all."

Right: Voyager flies through the outer bounds of the heliosphere en route to interstellar space. A strong magnetic field reported by Opher et al in the Dec. 24, 2009, issue of Nature is delineated in yellow. Image copyright 2009, The American Museum of Natural History. [larger image]

The discovery has implications for the future when the solar system will eventually bump into other, similar clouds in our arm of the Milky Way galaxy.


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Astronomers call the cloud we're running into now the Local Interstellar Cloud or "Local Fluff" for short. It's about 30 light years wide and contains a wispy mixture of hydrogen and helium atoms at a temperature of 6000 C. The existential mystery of the Fluff has to do with its surroundings. About 10 million years ago, a cluster of supernovas exploded nearby, creating a giant bubble of million-degree gas. The Fluff is completely surrounded by this high-pressure supernova exhaust and should be crushed or dispersed by it.

"The observed temperature and density of the local cloud do not provide enough pressure to resist the 'crushing action' of the hot gas around it," says Opher.

So how does the Fluff survive? The Voyagers have found an answer.

"Voyager data show that the Fluff is much more strongly magnetized than anyone had previously suspectedóbetween 4 and 5 microgauss*," says Opher. "This magnetic field can provide the extra pressure required to resist destruction."

see caption

Above: An artist's concept of the Local Interstellar Cloud, also known as the "Local Fluff." Credit: Linda Huff (American Scientist) and Priscilla Frisch (University of Chicago) [more]

NASA's two Voyager probes have been racing out of the solar system for more than 30 years. They are now beyond the orbit of Pluto and on the verge of entering interstellar spaceóbut they are not there yet.

"The Voyagers are not actually inside the Local Fluff," says Opher. "But they are getting close and can sense what the cloud is like as they approach it."

The Fluff is held at bay just beyond the edge of the solar system by the sun's magnetic field, which is inflated by solar wind into a magnetic bubble more than 10 billion km wide. Called the "heliosphere," this bubble acts as a shield that helps protect the inner solar system from galactic cosmic rays and interstellar clouds. The two Voyagers are located in the outermost layer of the heliosphere, or "heliosheath," where the solar wind is slowed by the pressure of interstellar gas.

Voyager 1 entered the heliosheath in Dec. 2004; Voyager 2 followed almost 3 years later in Aug. 2007. These crossings were key to Opher et al's discovery.

see captionRight: The anatomy of the heliosphere. Since this illustration was made, Voyager 2 has joined Voyager 1 inside the heliosheath, a thick outer layer where the solar wind is slowed by the pressure of interstellar gas. Credit: NASA/Walt Feimer. [larger image]

The size of the heliosphere is determined by a balance of forces: Solar wind inflates the bubble from the inside while the Local Fluff compresses it from the outside. Voyager's crossings into the heliosheath revealed the approximate size of the heliosphere and, thus, how much pressure the Local Fluff exerts. A portion of that pressure is magnetic and corresponds to the ~5 microgauss Opher's team has reported in Nature.

The fact that the Fluff is strongly magnetized means that other clouds in the galactic neighborhood could be, too. Eventually, the solar system will run into some of them, and their strong magnetic fields could compress the heliosphere even more than it is compressed now. Additional compression could allow more cosmic rays to reach the inner solar system, possibly affecting terrestrial climate and the ability of astronauts to travel safely through space. On the other hand, astronauts wouldn't have to travel so far because interstellar space would be closer than ever. These events would play out on time scales of tens to hundreds of thousands of years, which is how long it takes for the solar system to move from one cloud to the next.

"There could be interesting times ahead!" says Opher. spiral on
Hickory

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12/23/2009 03:38 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
bump
You have one life. Live it.
You have one voice, use it.
You have one
:Hickory-1:
Anonymous Coward
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12/23/2009 03:39 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
bump

for fluff!

Good stuff.
Fish  (OP)

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12/23/2009 03:41 PM

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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
bump

for fluff!

Good stuff.
 Quoting: Anonymous Coward 373696





fluff on fellow fluffer and stuff. 1rof1
Anonymous Coward
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12/23/2009 03:59 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
Clicking for a larger image at the link is nice.
nanuke

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12/23/2009 04:00 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
fluff?!

nice.
~you are love
~the key...it's almost time.

!poke the bulge!

~here is my hand...it can be closed like a fist...or open to hold...yet it is still my hand.
~Today is cancelled...due to lack of interest.
~Without order nothing exists. Without chaos nothing evolves.

ac 618285:
~"without both order and chaos, the illusion would not be able to continue.
one day in the far away future, order will submit to chaos and the entire illusion will vanish."
--------------------------------
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DrKnow

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12/23/2009 04:06 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
In normal world, magnetic fields are created by electric currents. Period.

A stream of charged particles (i.e. the "solar wind") is not wind, it is an electric current. It does not "inflate" a "magnetic bubble", it creates a magnetic field.

The universe is electric.

[link to thunderbolts.info]
"Man will never be free until the last king is strangled with the entrails of the last priest."
- Denis Diderot
Anonymous Coward
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12/23/2009 04:40 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
wow. just wow...
Anonymous Coward
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12/23/2009 04:44 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
Nice we have a big old 10 billion mile cushion protecting us!
Anonymous Coward
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12/23/2009 05:19 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
In normal world, magnetic fields are created by electric currents. Period.

A stream of charged particles (i.e. the "solar wind") is not wind, it is an electric current. It does not "inflate" a "magnetic bubble", it creates a magnetic field.

The universe is electric.

[link to thunderbolts.info]
 Quoting: DrKnow

Indeed its a Plasma Universe, Gravity takes the back seat.
Anonymous Coward
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12/23/2009 05:27 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
In normal world, magnetic fields are created by electric currents. Period.

A stream of charged particles (i.e. the "solar wind") is not wind, it is an electric current. It does not "inflate" a "magnetic bubble", it creates a magnetic field.

The universe is electric.

[link to thunderbolts.info]
 Quoting: DrKnow


Precisely.

However, the current crop of Standard Model Ricky Retardos will have to die off before the obvious can be recognized, and incorporated into a new Theory.

That's just how Science works!

rofl
Anonymous Coward
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12/23/2009 05:30 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
Too bad they pinned the other thread. Fish got there first.
The Guy

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12/23/2009 05:31 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
You'd think they would expect stuff like that. When two or more opposing flows meet, standing waves aren't uncommon at all.
It's good to be open-minded, just don't let your brain fall out.
Mr. Muggles

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12/23/2009 05:33 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
Too bad they pinned the other thread. Fish got there first.
 Quoting: Anonymous Coward 373696


sorry i stole your pin Fish! :(
"You can safely assume that you've created God in your own image when it turns out that God hates all the same people you do."
Fish  (OP)

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12/23/2009 05:34 PM

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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
Too bad they pinned the other thread. Fish got there first.
 Quoting: Anonymous Coward 373696





Yes I noticed that ..the other one was talking about getting his first pin and then he got it. Oh well I have had 2 pins now ..lol



my youtube
Fish  (OP)

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12/23/2009 05:36 PM

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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
Too bad they pinned the other thread. Fish got there first.


sorry i stole your pin Fish! :(
 Quoting: Mr. Muggles





Hya Mr. Muggles maybe we both should get a pin out of this..Its that good subject I think and theres no telling what else Voyager is going to discover...ya know like maye a huge alien junkyard? :5:




massivebla



close enco
Mr. Muggles

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12/23/2009 05:39 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
Too bad they pinned the other thread. Fish got there first.


sorry i stole your pin Fish! :(





Hya Mr. Muggles maybe we both should get a pin out of this..Its that good subject I think and theres no telling what else Voyager is going to discover...ya know like maye a huge alien junkyard? :5:




massivebla



close enco
 Quoting: Fish


I know! I couldn't believe it when I came across the article. It opens up a whole new realm of....well...of everything!
"You can safely assume that you've created God in your own image when it turns out that God hates all the same people you do."
Anonymous Coward
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12/23/2009 05:40 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
AUSSIE BLOKE WAS RIGHT!!!!!!!!!!!!!
The Guy

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12/23/2009 05:42 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
Maybe something like an interstellar version of L-4 and L-5 points?
It's good to be open-minded, just don't let your brain fall out.
Fish  (OP)

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12/23/2009 05:46 PM

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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
Too bad they pinned the other thread. Fish got there first.


sorry i stole your pin Fish! :(





Hya Mr. Muggles maybe we both should get a pin out of this..Its that good subject I think and theres no telling what else Voyager is going to discover...ya know like maye a huge alien junkyard? :5:




massivebla



close enco


I know! I couldn't believe it when I came across the article. It opens up a whole new realm of....well...of everything!
 Quoting: Mr. Muggles




I always like that livescience site too and just had wow feeling about it when I read it. Lots of discoverys coming and it just more around the bend in 2010.







fishs
Anonymous Coward
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12/23/2009 05:50 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
Too bad they pinned the other thread. Fish got there first.
 Quoting: Anonymous Coward 373696



Noticed that too!
Anonymous Coward
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12/26/2009 07:27 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
MAAAAGNETIC FIELDS CREATE ELECTRICITY.
MAAAAGNETIC FIELDS CREATE ELECTRICITY.
ITS MAAAAAGNETIC FIELDS THAT PUUUUUL ELECTRICITY INTO EGGG-SISTENCE
Anonymous Coward
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12/26/2009 07:42 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
Too bad they pinned the other thread. Fish got there first.



Noticed that too!
 Quoting: Anonymous Coward 847927

those were the days my friend we thought they would never end yes those were the days
Ossie bloke

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12/26/2009 08:08 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
The leading shock front of a Galactic Core Mass Ejection (GCME) has arrived.

That is why the solar cycle has changed.
Fish  (OP)

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12/26/2009 08:17 PM

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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
The leading shock front of a Galactic Core Mass Ejection (GCME) has arrived.

That is why the solar cycle has changed.
 Quoting: Ossie bloke




fishs


bump
Smilin' Irish Eyes

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12/26/2009 08:24 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
Good post Fish...have you checked out the Petroglyph thread? It is also looking into the plasma theory. Some good information there.

I had just posted a link to Paul LaViolette's site on there. Impressive ideas he has.



Just a quote LaViolette has on his site: [link to www.etheric.com]

The time will inevitably come when mechanistic and atomic thinking will be put out of the minds of all people of wisdom, and instead dynamics and chemistry will come to be seen in all phenomena. When that happens, the divinity of living Nature will unfold before our eyes all the more clearly. - Johann von Goethe, 1812
Common sense in an uncommon degree is what the world calls wisdom. -- Samuel Taylor Coleridge

In seeking wisdom thou art wise; in imagining that thou hast attained it - thou art a fool. -- Lord Chesterfield
The Guy

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12/26/2009 10:43 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
The leading shock front of a Galactic Core Mass Ejection (GCME) has arrived.

That is why the solar cycle has changed.
 Quoting: Ossie bloke


Dude, a galactic core mass ejection would more commonly be called a quasar. The first thing we'd notice with something like that would be our deaths.
It's good to be open-minded, just don't let your brain fall out.
Anonymous Coward
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12/26/2009 10:54 PM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
MAAAAGNETIC FIELDS CREATE ELECTRICITY.
MAAAAGNETIC FIELDS CREATE ELECTRICITY.
ITS MAAAAAGNETIC FIELDS THAT PUUUUUL ELECTRICITY INTO EGGG-SISTENCE
 Quoting: Anonymous Coward 712289

hiding
Fish  (OP)

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12/26/2009 11:03 PM

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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
Good post Fish...have you checked out the Petroglyph thread? It is also looking into the plasma theory. Some good information there.

I had just posted a link to Paul LaViolette's site on there. Impressive ideas he has.



Just a quote LaViolette has on his site: [link to www.etheric.com]

The time will inevitably come when mechanistic and atomic thinking will be put out of the minds of all people of wisdom, and instead dynamics and chemistry will come to be seen in all phenomena. When that happens, the divinity of living Nature will unfold before our eyes all the more clearly. - Johann von Goethe, 1812
 Quoting: Smilin' Irish Eyes




Thanks SmilinIrisheyes


I bookmarked this and going to check it out




my youtube
Ossie bloke

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12/27/2009 12:19 AM
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Re: }----------)))))))))))))))))*> Voyager Makes Interstellar Discovery concerning cloud that shouldnt be there
The leading shock front of a Galactic Core Mass Ejection (GCME) has arrived.

That is why the solar cycle has changed.


Dude, a galactic core mass ejection would more commonly be called a quasar. The first thing we'd notice with something like that would be our deaths.
 Quoting: The Guy


No Quasar. Like a solar coronal mass ejection, the galactic core mass ejection travels at a small fraction of the speed of light.





GLP