Twin Voyager Spacecraft Turn 30

Voyager Spacecraft Turns 30
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Voyager 1 was making history on its first day in flight, sending back the first space-based image of Earth and its moon in a single frame on September 5, 1977.

So far the Voyager missions have cost 865 million U.S. dollars, a cost that NASA says is offset by the rich scientific returns over the twin crafts' 30 years in space.

NASA estimates that the annual cost of the mission to U.S. citizens has averaged 20 cents a person.

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—Image courtesy NASA/JPL-Caltech
 
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