Voyager 2 reached interstellar space in November, six years after its twin, Voyager 1. Voyager 2 will use an instrument that broke on Voyager 1 to send new information about interstellar space.
Read MoreVoyager 2 reached interstellar space in November, six years after its twin, Voyager 1. Voyager 2 will use an instrument that broke on Voyager 1 to send new information about interstellar space.
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