Being so stubborn, I waded through most of it seeking comprehension. As near as I could figure out, the big deal is that the sun, along with the solar system, is speeding along against a form of galactic wind, which deforms the edge of the heliosphere, or heliosheath. Voyager 1 & 2 are in the process of intersecting the heliosheath at 2 very different points, at 2 very different distances from the sun. That supports the deformation theory. My problem with the CNN story is the North/South bit, because as far as I know, nothing much matters outside of the ecliptic plane, which again AFAIK, coincides with the galactic plane. So Earth North is irrelevant in this context, unless I'm missing something vital; and I have never ever heard of Earth cardinal points being applied to the rest of the universe.