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Voyager 1 has traveled far, offering a privileged and unprecedented insight into the universe beyond our own.

NASA's Voyager spacecraft zoomed by our solar system's planets decades ago and are now traveling through interstellar space, ultimate destination unknown. Yet the final transmissions from the two deep space craft loom increasingly closer. Voyager 1 and Voyager 2, both launched in 1977, were built to last five years. They've now beamed back cosmic information for over 46 years, a feat made possible by a hardy spacecraft and a clever group of NASA engineers. The Voyagers' nuclear power supply (Plutonium-238), however, is running low. To preserve fuel, NASA turned off the prob...

NASA's Voyager mission is nearing half a century of operation. How much longer will the pioneering deep space mission last, and when will we receive our final transmission from the spacecraft?

Voyager 1, which launched in 1977, is farther away than any other spacecraft from Earth.