The Voyager spacecraft and its measurements were directly accessing reaches of space that no mission has ever entered before. It’s true that the data collection system based on eight-track tapes had to be tinkered with along the way, that it no longer had a working camera, and that its equipment has about a million times less memory than a smartphone does today. But the spacecraft is still operational and is currently the man-made object most distant from the Earth and the Sun.
(from Dark Matter and the Dinosaurs by Lisa Randall)
9*/10. The complete review is here.