Engineering for the Long Haul, the Nasa Way

Failure analysis led NASA engineers to conclude that leaving an umbrella-style antenna stowed for four and a half years and not relubricating the system prior to launch is not a good idea. To make sure that interstellar probes, planetary explorers, and even the ground-based system that support them do not fail, or at least maximize the time until failure, NASA has developed a massive body of very specific and very stringent workmanship standards. But with the spacecraft still in good shape and with minimal budget needed to continue communicating with them, NASA began the Voyager Interstellar Mission (VIM) that continues to this day, gathering data from interstellar space.

Source: hackaday.com