Fisk, an area plasma scientist on the College of Michigan and a former NASA administrator. For the earlier various yrs Fisk and George Gloeckler, a colleague at Michigan along with a longtime Voyager mission scientist, have been focusing on a product of the heliosphere that pushes its edge out http://connerwmirr.ampblogs.com/Little-Known-Facts-About-Voyager-One-Sounds-Of-The-Earth-Record--47320578