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Voyager program

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40 Years of Voyager

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THE JOURNEY OF THE VOYAGER SPACECRAFT SO FAR

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Voyager turns 40

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A Brief History of Voyager 1 and Voyager 2

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V O Y A G E R - The Interstellar Quest

The Voyager program is an American scientific program that employs two robotic probes, Voyager 1 and Voyager 2, to study the outer Solar System. The probes were launched in 1977 to take advantage of a favorable alignment of Jupiter, Saturn, Uranus and Neptune. Although their original mission was to study only the planetary systems of Jupiter and Saturn, Voyager 2 continued on to Uranus and Neptune. The Voyagers now explore the outer boundary of the heliosphere in interstellar space; their mission has been extended three times and they continue to transmit useful scientific data. Neither Uranus nor Neptune has been visited by a probe other than Voyager 2.