[url]http://www.popsci.com/technology/article/2011-12/voyager-1-has-entered-cosmic-purgatory-where-no-probe-has-gone?cmpid=obinsite[/url] [quote]More than three decades after launching from Earth, Voyager 1 is about to leave the solar system. The probe, which was originally launched along with companion spacecraft Voyager 2 in 1977, has entered a new and uncharted region of space between our solar system and the interstellar space beyond that NASA is calling a kind of “cosmic purgatory,” the Telegraph reports. The Voyager missions were launched to study Jupiter and Saturn, but thus far they have just kept on trucking toward the far reaches of interstellar space. Each has enough fuel on board to keep going until 2020, when it is estimated Voyager 1 will be some 12.4 billion miles away from the sun.[/quote]