RESTATED HELIOSPHERE and reissued to review the published 9/10/1917 this, which reissued in response to the latest observations from Voyager AT END OF ARTICLE
The heliosphere is a bubble in space produced by the solar wind, which extends from the Sun to beyond the orbit of Pluto. The solar wind is ejected by the Sun in all directions at high speeds. When it beyond the orbit of Pluto, this supersonic wind starts to decelerate until his encounter with the gases of the interstellar medium.
the heliosphere ions lose their charge to make contact with the intergalactic medium where the supply to become neutral so it no longer affected by the magnetic fields and flows backward.
"As an optical or radio observatory, where the photons first 'white' through the focal plane is called" first light ", we now have the first energetic neutral atoms (ENA) detected by the IBEX sensors," said Robert MacDowall.
As our sun orbits around the center of the galaxy every 225 million years ago, passing through areas of the interstellar medium that are becoming less dense, causing the heliosphere change shape and size.
denser areas can compress the heliosphere, while less dense regions allow the bubble to expand . In addition, the solar wind force varies during the cycle of the Sun,
"breathing " Regular, also contributes to this.
The heliosphere is a comet was held today which makes it resemble a spherical bubble from the comments of the Interstellar Boundary Explorer (IBEX), which leans toward the second hypothesis alternative.
addition
says Dr. David McComas, IBEX principal investigator. "We expected to see small incremental spatial variations in the interstellar boundary, about 16 billion miles away. However, IBEX is showing us a very narrow band that is two to three times brighter than anything else in the sky."
more time is needed to fully understand the IBEX data, however, as the tape seems to be oriented by the interstellar magnetic field direction that is outside of the heliosphere, IBEX observations suggest that the interstellar environment is very more influence on the structure of the heliosphere than anyone had thought. A closer look of the film shows fine structures which suggests that the densities of ions can be increased significantly in highly localized regions of the interstellar boundary. Added on 10/12/1915
The 33-year odyssey spacecraft NASA's Voyager 1 has acanzado a distant point on the frontier of our solar system where there is no outward movement of the wind solar.Lanzada now to the interstellar space at about 17.4 billion kilometers from the sun, Voyager 1 has crossed a region where the velocity of hot ionized gas, or plasma, emitted by the sun, has been completely reduced to zero. Scientists suspect The solar wind is deflected sideways by the wind pressure in the interstellar space between the stars.The event is an important milestone in the path of Voyager 1 through the solar envelope, the outer layer of turbulent sphere of influence of the sun, and the final exit near the spacecraft in our solar system. "The solar wind has turned the corner," says Ed Stone, Voyager project scientist working at the California Institute of Technology Pasadena if , California. "Voyager 1 is approaching interstellar space." Http://observatori.uv.es/index.php?option=com_content&view=category&id=52&Itemid=74&layout=blog
I have addressed the issue in the following articles in this blog 
