NASA engineers successfully reactivated Voyager 1's dormant primary roll thrusters after two decades of inactivity. These thrusters serve as a backup to the currently functioning ones, ensuring the spacecraft's continued operation during scheduled upgrades to a crucial communication antenna. The reactivation was crucial as the backup thrusters could fail, potentially ending the mission. This accomplishment extends the operational lifespan of the probe, which has been exploring interstellar space for nearly 50 years.

Prepared by Olivia Bennett and reviewed by editorial team.