NASA Finds Cause of Voyager 2 Glitch

A glitch in the flight data system, which formats information for radioing to Earth, was believed to be the problem. Engineers were able to replicate the glitch in a computer lab, showing that a single bit flip was responsible. NASA plans to reset Voyager's memory tomorrow.

The spacecraft is so far away it takes nearly 13 hours for a radio signal from Earth, traveling at the speed of light, to reach it, and another 13 hours to receive a response.