Scott Bolton’s first encounter with Io took place in the summer of 1980, right after he graduated from college and started a job at NASA. The Voyager 1 spacecraft had flown past this moon of Jupiter, ...

We may receive a commission on purchases made from links. Voyager 1 was launched into space in 1977 and has been on a one-way journey ever since, pushing the boundaries of how far a machine built by ...

Voyager 1 is about to cross a threshold that sounds almost mythical: within about a year, the spacecraft will be a full light-day from Earth, so far away that its radio messages will take roughly 24 ...