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Voyager 1 has recently crossed the boundary of our solar system and passed into interstellar space, and Voyager 2 is likely to follow suit, on a different path, between 2016 and 2017. The two Voyager probes will continue to transmit details of discoveries beyond our solar system until at least 2020.
(retrieved from Amazon Mon, 31 Aug 2015 09:21:44 -0400)