The Voyager spacecraft are each powered by a radioisotope thermoelectric generator (RTG), which converts radioactive plutonium into electricity. At launch, the RTGs generated 470 watts of energy, but they lose about 4 watts/year as the plutonium decays.
Launched in 1977, NASA’s epic Voyager mission revolutionized our understanding of Jupiter, Saturn, Uranus, Neptune and their spectacular moons and rings. In 2012, Voyager 1 pierced the bubble of our solar system and ushered humanity into the interstellar age. Voyager 2 is expected to join it in interstellar space within the next few years. Both Voyager 1 and Voyager 2 continue to function, and send daily updates back to Earth from almost 13 billion miles and almost 11 billion miles away, respectively. THE FARTHEST features more than 20 original and current Voyager team members, providing never-before-seen insights into one of the greatest feats of exploration our species has ever undertaken.