Voyager 1 was launched Sept. 5, 1977 atop a Titan rocket with a Centaur-6 upper stage. Still operational for 30 years, Voyager 1 is more than 103.2 astronomical units away from the Sun.

Info at Wired: http://www.wired.com/science/space/multimedia/2007/09/gallery_voyager_30

A mission that was supposed to last just five years is celebrating its 30th anniversary this fall. Scientists continue to receive data from the Voyager 1 and 2 spacecraft as they approach interstellar space.

Info at NASA: http://www.nasa.gov/mission_pages/voyager/voyagerf-20070905.html