It is going to be a very exciting couple months in the scientific word! Space explorer Voyager 1 is about to enter interstellar space, leaving the solar system behind.
The Voyager 1 is now 18 milliard km far from the Sun. It is going to be traveling 35 years on Sept.5.2012. It's twin 'brother' the Voyager 2 is flying since Aug.20.1977. to different direction around 15 milliard km from us now. (just checked... yes, Voyager 2 was sent first)
Their primary mission was to explore Jupiter/Saturn (V1) and Uranus/Neptune (V2), and now they are still sending information from out there :)
more info here: http://voyager.jpl.nasa.gov/index.html
