Something's Seriously Wrong With Voyager 1 Probe 23 Billion km Away

Voyager 1 is in trouble. The engineering team with NASA’s Voyager 1 spacecraft is trying to solve a mystery: readouts from the probe’s attitude articulation and control system (AACS) don’t reflect what’s actually happening onboard. The AACS controls the 45-year-old spacecraft’s orientation. Among other tasks, it keeps Voyager 1’s high-gain antenna pointed precisely at Earth, enabling it to send data home, For instance, the data may appear to be randomly generated ...