The Voyagers were not the first to visit Jupiter and Saturn.

Pioneer 11 was the first to visit Saturn, in 1979.

In 1979 Pioneer 11 became the first craft to visit Saturn.

The gravity assist at Jupiter was successful, and the spacecraft went on to visit Saturn.

After making a flyby of Jupiter in 1979, they visited Saturn in 1980-1981.

They visited Jupiter in 1979 and Saturn in 1980 and 1981, respectively.

Voyager 1, which visited Jupiter in 1979 and Saturn in 1980, now is headed out of the solar system.

It still puzzled many people-the curious fact that man had visited Saturn but not Jupiter, so much closer at hand.

It led him to organize the 1991 expedition which first visited Saturn, Uranus and Neptune.

No previous spacecraft visiting Saturn had been in the proper position to make such a discovery.