NASA engineers working to extend the Voyager missions cannot physically touch the spacecraft, cannot send a replacement part, and must wait nearly 24 hours for every command to arrive — and another 24 hours for the reply — yet they just bought Voyager 2 at least a year of extra life

A coordinated power-system swap has delayed Voyager 2's next instrument shutdown, even though every engineering exchange with the probe takes roughly 39 hours. The post NASA engineers working to extend the Voyager missions cannot physically touch the spacecra…