NASA’s Voyager 1 has engineers baffled as they attempt to solve an issue with the spacecraft. While it continues to send data and operate normally, there is a problem with its attitude articulation and control system (AACS).

Voyager 1 launched in 1977 and has since been traversing through space. Currently the spacecraft is much farther

Source: Hot Hardware – NASA Engineers Baffled By Bizarre Telemetry Data Sent By Voyager 1 Launched In 1977