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Sun's protective 'bubble' is shrinking
The Telegraph ^ | 10/19/2008 | Richard Gray

Posted on 10/18/2008 6:05:05 PM PDT by bruinbirdman

The protective bubble around the sun that helps to shield the Earth from harmful interstellar radiation is shrinking and getting weaker, Nasa scientists have warned.


Data has shown that the sun's heliosphere is shrinking

New data has revealed that the heliosphere, the protective shield of energy that surrounds our solar system, has weakened by 25 per cent over the past decade and is now at it lowest level since the space race began 50 years ago.

Scientists are baffled at what could be causing the barrier to shrink in this way and are to launch mission to study the heliosphere.

The Interstellar Boundary Explorer, or IBEX, will be launched from an aircraft on Sunday on a Pegasus rocket into an orbit 150,000 miles above the Earth where it will "listen" for the shock wave that forms as our solar system meets the interstellar radiation.

Dr Nathan Schwadron, co-investigator on the IBEX mission at Boston University, said: "The interstellar medium, which is part of the galaxy as a whole, is actually quite a harsh environment. There is a very high energy galactic radiation that is dangerous to living things.

"Around 90 per cent of the galactic cosmic radiation is deflected by our heliosphere, so the boundary protects us from this harsh galactic environment."

The heliosphere is created by the solar wind, a combination of electrically charged particles and magnetic fields that emanate a more than a million miles an hour from the sun, meet the intergalactic gas that fills the gaps in space between solar systems.

At the boundary where they meet a shock wave is formed that deflects interstellar radiation around the solar system as it travels through the galaxy.

The scientists hope the IBEX mission will allow them to gain a better understanding of

(Excerpt) Read more at telegraph.co.uk ...


TOPICS: Culture/Society; Miscellaneous; News/Current Events; Philosophy
KEYWORDS: astronomy; bob152; bushsfault; catastrophism; environment; ibex
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1 posted on 10/18/2008 6:05:05 PM PDT by bruinbirdman
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To: bruinbirdman

Man made!


2 posted on 10/18/2008 6:06:12 PM PDT by PhilosopherStones
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To: bruinbirdman

ahh...maybe this is the real cause of “global warming.”


3 posted on 10/18/2008 6:06:50 PM PDT by americanophile
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To: PhilosopherStones

Bush’s fault!


4 posted on 10/18/2008 6:07:02 PM PDT by LibertarianInExile (McCain is W with a DD-214 and a flash temper. Another 4 years of this mess--or worse? Hell, no!)
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To: bruinbirdman

Something has to be done about people who are driving their SUVs around on the Sun.


5 posted on 10/18/2008 6:07:16 PM PDT by FlingWingFlyer (If Obama is the answer, it must have been a pretty stupid question.)
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To: bruinbirdman

I’m waiting for the tie-in to global warming...


6 posted on 10/18/2008 6:08:07 PM PDT by John123 (The US may be going down the drain, but everyone else will drown first...)
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To: bruinbirdman

It may have been me....I drank a bottled water today. Sorry.


7 posted on 10/18/2008 6:08:13 PM PDT by Zarro (We Support Governor Rossi)
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To: bruinbirdman

Of course, it’s Bush’s fault.


8 posted on 10/18/2008 6:08:30 PM PDT by Clintonfatigued (If Islam conquers the world, the Earth will be at peace because the human race will be killed off.)
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To: bruinbirdman

wait... so there are evil Americans ignoring Kyoto living on the SUN too?


9 posted on 10/18/2008 6:08:33 PM PDT by TheUglyAmerican
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To: bruinbirdman

well, that’s it, the neighborhood is falling apart. I’m moving.


10 posted on 10/18/2008 6:09:23 PM PDT by txroadkill (Do it for Sarah!- Conservatism= finding joy in duty)
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To: LibertarianInExile

DITTO


11 posted on 10/18/2008 6:09:29 PM PDT by boomop1
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To: PhilosopherStones

SUV’s!


12 posted on 10/18/2008 6:10:17 PM PDT by skimbell (Life, Liberty and the pursuit of all who threaten either.)
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To: John123

**I’m waiting for the tie-in to global warming...**

I’m already on that list too

Mars is warming too, and one group is trying to blame the ROVERS .. the SOLAR POWERED ..Rovers?!?!

I don’t know if I have much more “”Giveadamn” left to fight these MORONS!!


13 posted on 10/18/2008 6:10:45 PM PDT by gwilhelm56 (Orwell's 1984 - to Conservatives a WARNING, to Liberals - a TEXTBOOK)
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To: bruinbirdman

25% does sound like quite a bit over a decade but I wonder how long we’ve been able to measure such things. It may be pretty much the standard.


14 posted on 10/18/2008 6:11:24 PM PDT by cripplecreek (Paying taxes for bank bailouts is apparently the patriotic thing to do. [/sarc])
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To: gwilhelm56
the SOLAR POWERED

There you go! Those dadblasted things keeps drawing energy away from the sun which is causing all the problems...

15 posted on 10/18/2008 6:13:33 PM PDT by John123 (The US may be going down the drain, but everyone else will drown first...)
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To: bruinbirdman

“whoopie, we’re all gonna die”

Country Joe and the Fish


16 posted on 10/18/2008 6:14:37 PM PDT by Yankee
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To: cripplecreek

Or part of a cycle?


17 posted on 10/18/2008 6:14:41 PM PDT by doc1019 (Obama IS running against Palin)
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To: bruinbirdman

Why spend all that money sending a rocket up to investigate?

Why don’t we just ask Al Gore?

I’m sure he knows why. He knows everything.


18 posted on 10/18/2008 6:15:11 PM PDT by HEY4QDEMS
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To: bruinbirdman
the protective shield of energy that surrounds our solar system, has weakened by 25 per cent over the past decade

Any ideas as to how that shield is energized? (No, not the bunny....)

If this isn't a new phenomenon then the theory is bogus. In the past 50 + years it should have been depleted by now.......

19 posted on 10/18/2008 6:15:14 PM PDT by Hot Tabasco (Spreading manure around helps growth. Spreading wealth around creates manure)
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To: cripplecreek

Zackly, just like the Ozone hole’s demise/re-strengthening.


20 posted on 10/18/2008 6:15:34 PM PDT by CARTOUCHE (two roads diverged and I chose the one less travelled by)
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