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Earth to Neptune in One Year

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Similar to solar sail concepts that have been around for years, this pellet-beam propulsion system could transport spacecraft weighing one ton to the orbit of Neptune in just one year—it took Voyager 2 twice as long just to get to Jupiter.

See https://www.popularmechanics.com/space/deep-space/a42467338/propulsion-system-interstellar-travel-earth-neptune/



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