Launched in 1977, the Voyager probes embarked on a journey unlike any in human history. Over four decades later, they ...

Since Voyager 1 blasted off in 1977, it has skirted past the kaleidoscopic clouds of Jupiter and the icy rings of Saturn. The spacecraft is now 124 times farther from the Sun than we are ...

Then, in 1979, the Voyager 1 spacecraft, approaching Saturn, took images that showed the spokes. “It was an overpowering emotion, to have that vindication at last,” O’Meara said. I asked ...