NASA engineers have successfully restored communication with Voyager 1, the farthest human-made object from Earth, after five months of receiving unclear or unusable data from the probe. Launched in 1977, Voyager 1 is now more than 24 billion kilometers from Earth, traveling through interstellar space. The probe recently experienced a problem with its command and data subsystem, specifically a corrupted memory chip responsible for formatting the data before transmitting it back to Earth. The issue was identified by engineers at NASA’s Jet Propulsion Laboratory (JPL), led by Suzanne Dodd. After weeks of analysis, they developed a solution to move the problematic code to another chip on the probe, allowing it to resume sending clear data. However, due to the vast distance between Voyager 1 and Earth, each command sent to the probe took about 22 hours to reach it, and another 22 hours for a response. This made the process of diagnosing and fixing the issue extremely slow and challenging. The malfunction began in the autumn when engineers started receiving a signal from Voyager 1, but the data was not usable. The probe was still transmitting, but the information was scrambled and unreadable. Engineers faced additional challenges because the probe uses outdated computing technology—its processing power is far less than that of a modern smartphone. Few engineers today are familiar with the decades-old programming language used in the probe, and original technical manuals were not always helpful, requiring the team to essentially rebuild their understanding of the probe’s internal systems. Despite these difficulties, the team successfully redistributed the affected code to a functioning chip without physically accessing the probe. This achievement highlights the ongoing engineering capabilities of Voyager 1 and its twin, Voyager 2, which are both powered by the radioactive decay of plutonium. Both probes are expected to remain partially operational until the end of this decade. The incident also underscores the importance of preserving technical knowledge and the expertise of older engineering practices. As Voyager 1 continues its journey through interstellar space, it carries a golden record containing sounds and images from Earth, intended for any potential extraterrestrial civilizations it might encounter.