Engineers hope to get another three years out of the Voyager probes. After launching into space almost 50 years ago, NASA’s Voyager probes are reaching the end of their lives. The nuclear ...

Voyager 1, the farthest human-made craft from the Earth, is finally sending back data from all four of its scientific instruments, NASA said this week. That means the agency is once more receiving ...

It’s how NASA ... as long for Voyager 1 to send back an answer and for the team to know if the command worked. Figuring out what commands to send the spacecraft is as much an art as a science.