This year, 45 years since the Voyager probes escaped Earth's gravity, carrying scientific equipment and some cultural artifacts of humankind, NASA engineers began to power down some of the spacecrafts' systems in order to extend the missions life, possibly for another 10 years. Among things made by human hands, these spacecraft are farther from home than anything else. Dr. Candice Hansen-Koharcheck, a longtime Voyager scientist, and chair of NASA's Outer Planets Assessment Group joins to celebrate the long life of this mission, and tell us what insights the probe could gather as it continues beyond the gravitational reach of our sun.