Voyager nearing the edge of the solar system

At http://phys.org/print291565822.html … this story comes from NASA and the Voyager 1 spacecraft and speculation surrounding what is actually there at the edge of the solar system. The paper is published in Science this week (last week of June 2013) (see www.sciencemag.org/content/early/2013/06/26/science.1235451.abstract … but for an alternative and more populist take on the article go to www.dailymail.co.uk/sciencetech/article-2350411/The-final-frontier-nasas…