Voyager 1 begins it 18-month journey for its first planetary encounter: Jupiter. Its mission, along with Voyager 2, is to investigate the atmospheres, magnetospheres, satellites, and ring systems of Jupiter and Saturn.

As of 2002, 25 years after launch, Voyager 1 is the farthest human-made spacecraft in the universe. Both Voyagers send back data from their distant locations well beyond Pluto once a week.

See also: Voyager home page