Nasa's Voyager 2 spacecraft gave humanity its first glimpse of Neptune and its moon, Triton, in the summer of 1989.
An artist's impression of the Voyager 1 spacecraft entering interstellar space. All photos: Nasa
The Voyager 1 lifted off on board the Titan III/Centaur on September 5, 1977.
This picture of a crescent-shaped Earth and Moon was taken on September 18, 1977, by Nasa's Voyager 1 spacecraft when it was 11.66 million kilometres from Earth.
Voyager 2 took off on August 20, 1977, about two weeks before the September 5 launch of Voyager 1.
Nasa's Voyager 2 spacecraft gave humanity its first glimpse of Neptune and its moon, Triton, in the summer of 1989.
An artist's impression of the Voyager 1 spacecraft entering interstellar space. All photos: Nasa
The Voyager 1 lifted off on board the Titan III/Centaur on September 5, 1977.
This picture of a crescent-shaped Earth and Moon was taken on September 18, 1977, by Nasa's Voyager 1 spacecraft when it was 11.66 million kilometres from Earth.
Voyager 2 took off on August 20, 1977, about two weeks before the September 5 launch of Voyager 1.
Nasa's Voyager 2 spacecraft gave humanity its first glimpse of Neptune and its moon, Triton, in the summer of 1989.
