Far, far away from Earth, Voyager 1 has been exploring interstellar space. But recently, this trusty spacecraft faced a hiccup. On October 16, its fault protection system kicked in. This safety measure is designed to save power, but it caused a communication blackout. NASA was left wondering what happened.

It turned out that one of Voyager 1's radio transmitters wasn't working right. The spacecraft's automated system shut down some functions to save power. This isn't unusual, but it was unexpected this time.

NASA's team worked quickly to figure out what went wrong. They sent commands through the Deep Space Network, a system of antennas that help communicate with distant spacecraft. These commands take nearly two days to travel 15 billion miles to Voyager 1 and back.

A routine command on October 16 caused the spacecraft to shut down. It was supposed to turn on a heater, but something went wrong. The Deep Space Network couldn't find Voyager 1's signal for a while.

When they did, they found that the spacecraft was quiet again. The fault protection system had been triggered twice more. This time, the team decided to use Voyager 1's backup transmitter, the S-band. It hadn't been used in over 40 years!

The S-band transmitter sends a weaker signal, but the Deep Space Network managed to detect it. Now, the team is working hard to find out why the fault protection system was activated and get Voyager 1 back to normal.

Voyager 1 and 2 are the only spacecraft exploring interstellar space. As they get older, they have more problems. This year alone, Voyager 1 has had a few communication issues.

Voyager 1's Journey: A Spacecraft's Resilience Tested

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