NASA makes tough call: Shuts down Voyager instruments to keep spacecraft alive longer

NASA Turns Off Voyager Instruments to Extend Space Mission

NASA is making tough choices to keep Voyager 1 and 2 exploring. The twin spacecraft have travelled billions of miles since 1977. Now, engineers are shutting down instruments to save power. Every decision could extend their journey beyond the solar system.

Preserving Power for Interstellar Exploration

Voyager 1's cosmic ray instrument was switched off on 25 February. On 24 March, Voyager 2’s low-energy charged particle device will follow. NASA’s Jet Propulsion Laboratory (JPL) is taking these steps carefully. The goal is to ensure both probes continue sending valuable data.

Each year, the power systems of both spacecraft weaken. The energy comes from plutonium decay, but its output declines. Since the 1980s, several instruments have been turned off. This strategy has helped the Voyagers survive for decades.

Unique Data from the Edge of Space

Voyager 1 entered interstellar space in 2012, Voyager 2 in 2018. They remain the only human-made objects to reach this distance. Their instruments study cosmic rays, plasma, and charged particles. The new shutdowns will leave each with three working instruments.

By 2026, only two instruments will remain on each probe. NASA hopes one will last into the 2030s. Engineers are preparing for unexpected issues that could change these plans.

Pushing the Limits of Space Exploration

NASA scientists recognise the risks of shutting down instruments. Each piece of data from the Voyagers is unique and irreplaceable. However, extending their lifespan is the top priority.

“Every minute, they explore regions never seen before,” said Linda Spilker, Voyager project scientist. “Each day could be their last, but it could also bring new discoveries.”

NASA is determined to keep Voyager 1 and 2 operational. These silent explorers continue their journey into the unknown.