Voyager 1 has entered a region of space with a markedly higher flow of charged particles from beyond our solar system. Mission scientists suspect this increased flow indicates that the spacecraft — currently 11.1 billion miles from Earth — may be poised to cross the boundary into interstellar space.
http://www.foxnews.com/scitech/2012/06/18/nasa-voyager-1-spacecraft-nears-interstellar-space/
http://www.foxnews.com/scitech/2012/06/18/nasa-voyager-1-spacecraft-nears-interstellar-space/
