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If NASA greenlights this interstellar mission, it could last 100 years

The Voyager spacecraft have ventured far outside our solar system. Now a team of scientists is hoping to take the next interstellar mission even farther. (NASA/JPL-Caltech)
The Voyager spacecraft have ventured far outside our solar system. Now a team of scientists is hoping to take the next interstellar mission even farther. (NASA/JPL-Caltech)

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