Whee! Lawrence Welk and Don Ho would just love this, whatever may be a "turbulent sea of magnetic bubbles."

I would really like more details on the "bow shock" and the oblong shape of the heliosphere...The illustration would suggest that the solar system is traveling rather rapidly through some medium, not empty space...

I don't think it is our solar system moving, I think it is the cosmic rays from the Milky Way pressing against the heliosphere.

With the magnitudes of the forces suggested by the illustration, one would expect the solar system to be accelerated away from the Milky Way by these rays...

Since we are only speculating on what is out there (neither of the Voyagers has crossed the heliosphere yet), it's pretty hard to consider this much more than just an "artist's rendering". But it still raises questions...

Very impressive

Here's some more info with a NASA produced video attempting to explain the findings:

http://www.geekosystem.com/voyager-bubbles/

A minor comment on the video got my attention quickly- the narrator suggests that the sun's magnetic field lines get all jumbled up and start crossing each other...

Which goes against the very foundation of my understanding of magnetic fields- i.e., field lines are never supposed to cross...

Hmm... that one slipped by me. Perhaps NASA is grasping to explain the anomalies the Voyagers have encountered. Given how large this area is and how little these spacecraft have poked into it, no doubt they are extrapolating from too little data. Although, I wonder why they would use an explanation which defies known physics...