Voyager 1:
After historic visits of to Jupiter and Saturn, Voyager 1 is now on course to be the first human-made object to leave our solar system. In space for more than 25 years, it has already traveled farther from our Sun than any other spacecraft.

It is not clear when Voyager 1 will reach the heliopause boundary, where the influence of our Sun ends. The boundary is thought to exist somewhere from 8 to 22.5 billion kilometers (5 to 14 billion miles) from the Sun. When Voyager 1 does cross over, scientists will be able to measure the interstellar environment without the influence of the Sun for the first time.

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09.05.77:  Launch (12:56:01 UT) 03.05.79:  Jupiter Flyby 11.12.80:  Saturn Flyby Status:  Headed to Interstellar Space Show All Dates for Voyager 1		07.07.08:  Voyager's New Discoveries 09.05.07:  Voyager at 30: Looking Beyond and Within 08.20.07:  Pioneering NASA Spacecraft Mark Thirty Years of Flight More Headlines
Voyager 1 is speeding along at about 57,600 kph (35,790 mph) - fast enough to travel from the Earth to the Sun three and a half times in one year. Both Voyagers carry a gold record 'greeting to the universe' (right) containing sounds and images selected to portray the diversity of life and culture on Earth.		Solar System Bodies: Beyond Our Solar System Voyager 1 Multimedia Gallery Voyager Fact Sheet (PDF File) Voyager Project Home Page (NASA's Jet Propulsion Lab)