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"Observations of a few astrospheres have shown bow shocks around those stars, but IBEX has shown that our star has a fundamentally different environment surrounding it," says Christina Prested (Boston University), a Nasa IBEX scientist not involved in the published study. "These results are very exciting as we can now definitively say what it's like in the neighborhood of our solar system."
-May 10, 2012
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.
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.
"Around 90 per cent of the galactic cosmic radiation is deflected by our heliosphere, so the boundary protects us from this harsh galactic environment."
Originally posted by LiberalSceptic
Wow this thread can turn out to be extremely interesting!
The solar journey through space is carrying us through a cluster of very low density interstellar clouds. Right now the Sun is inside of a cloud that is so tenuous that the interstellar gas detected by IBEX is as sparse as a handful of air stretched over a column that is hundreds of light years long. These clouds are identified by their motions. Credit: NASA/Goddard/Adler/U. Chicago/Wesleyan
Originally posted by pianopraze
Originally posted by LiberalSceptic
Wow this thread can turn out to be extremely interesting!
Seems to me like the typical fear mongering we see all to often.
NASA has discovered their old model didn't work... looking at new models now.
The only real worry is they do need to upgrade the grid for Solar eruptions from the sun. It took out the telegraph wires in the 1800's... it could do a lot more damage now.
But that has been known and reported for centuries. It will probably take a bad flare and some damage to motivate Congress to do what they should have done decades or more ago about our grid.. it can be grounded they just aren't doing it.edit on 15-5-2012 by pianopraze because: typo
...Astrophysicist Alexei Dmitriev says that both Voyager 1 and Voyager 2 satellites reveal that our sun, as well as our entire solar system, is now moving into an interstellar energy cloud.
Opher, a NASA Heliophysics Guest Investigator from George Mason University says this interstellar energy cloud is turbulent.
Dmitriev explains that this cloud of energy is exciting the atmospheres of our planets and especially our sun. As this interstellar energy cloud continues to excite/charge the sun, it causes the sun to become more active/violent, resulting in greater output from the sun. IE: Bigger and more frequent solar storms and CME's resulting in the Carrington effect.
This interstellar cloud of electrical energy is also absorbed by the Earth, and scientist have found that it results in more earth quakes, all while dramatically effecting our weather here on earth. When asked how long will it take our sun to pass through this interstellar energy cloud, Dr. Dmitriev replied, "I don't know. But If I had to guess, I would say somewhere between two thousand to three thousand years." This interstellar cloud is a wispy band of charged particles through which our solar system is slowly moving through.
...It turns out that our solar system is moving nearly 100,000 m.p.h. faster than previously thought — revolving around the center of the Milky Way at 568,000 m.p.h., announced Mark Reid of the Harvard-Smithsonian Center for Astrophysics...
Originally posted by EnochWasRight
DO THE MATH: 1948+70=2018. SUBTRACT 7 YEARS FOR TRIBULATION. YOU GET 2012.
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 suspected—between 4 and 5 microgauss*," says Opher. "This magnetic field can provide the extra pressure required to resist destruction."
Originally posted by St Udio
the 'cloud' has to be some element like hydrogen or helium, but the hype says it is hot as plasma and charged electrons (electricity)...my BS meter is going ding-ding-ding
besides...do the math... the Solar System orbiting at 568,000 MPH for 2,000 years means this 'cloud' is some +1 or so light years big - (~9 trillion miles equal 1 LY)
--UNbelieveable !
9,951.360,000,000.miles minimum
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 suspected—between 4 and 5 microgauss*," says Opher. "This magnetic field can provide the extra pressure required to resist destruction."
Our solar system's journey through space is slower and heading in a different direction to what was previously thought, according to new data.
IBEX principle investigator, Dr David McComas from the South West Research Institute in Texas, and colleagues calculated the speed of the heliosphere with respect to the interstellar medium as 23.2 kilometres per second - significantly less than the previous estimate of 26.3 kilometres per second.
They also determined that the heliosphere's interstellar interaction is weaker and more magnetically dominated than previously thought.
McComas and colleagues say this explains the lack of a bow shock, where the interstellar medium abruptly slows before hitting the heliosphere.
passing thru our galaxy's photon belt which has a temp of ~6000C for approx the next 20,000 yrs
our solar system could sooner or later eventually collide with other solar system(s)