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Behind the Pictures: Top 10 Voyager Facts
By Robert Roy Britt
Senior Science Writer
posted: 07:00 am ET
20 August 2002
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7
Better than My Saturn
We want one of these! Getting from Earth to Neptune, a task accomplished with
a lot of fuel in a launch rocket, resulted in a Voyager fuel efficiency of some
30,000 mpg (13,000 kilometers per liter). A Voyager craft, which weighs nearly
a ton, operates on 400 watts of power produced by the heat of decaying plutonium.
That's about a fourth the amount used by the average home in the western U.S.
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