One of the most distant objects in the universe has been fixed by engineers. The underlying cause of the issue that caused the control system to malfunction remains a mystery despite the glitch being fixed.

Since being launched in the 70s, the two probes named Voyager 1 and 2 have traveled through the solar system and into space, where they send back data. The 40-year-old hardware is developing issues despite the recent problem being puzzling. There were strange and impossible readings coming from the attitude articulation and control system of the probe. The craft continued on its journey and was able to send data correctly.

Voyager’s high-gain antenna, seen at the center of this illustration of the NASA spacecraft, is one component controlled by the attitude articulation and control system (AACS).
Voyager’s high-gain antenna, seen at the center of this illustration of the NASA spacecraft, is one component controlled by the attitude articulation and control system (AACS). NASA/JPL-Caltech

Engineers who looked at the problem recently said they had found the problem. The AACS was using a computer that has not been used in a long time, instead of the one that works. The computer was responsible for the data.

To fix the issue, the team sent commands to the AACS to send the data to the correct computer. They don't know what caused the AACS to switch to the wrong computer, so they will continue to look for the underlying problem. There is a chance that there is a fault in one of the onboard computers.

Suzanne Dodd said that they were happy to have the data back. We will look at everything that the AACS has been doing. We will be able to diagnose the problem that caused the issue. We are cautiously optimistic but still have more to do.

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