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NASA Shuts Down Voyager 1 Instrument to Extend Mission Life in Deep Space

NASA Shuts Down Voyager 1 Instrument to Extend Mission Life in Deep Space

NASA has shut down an instrument on Voyager 1 to conserve power, extending its mission in interstellar space as it continues to send valuable data back to Earth.

Written by Gadgets 360 Staff | Updated: 21 April 2026 21:21 IST

NASA Shuts Down Voyager 1 Instrument to Extend Mission Life in Deep Space

Photo Credit: NASA

Voyager 1, launched in September 1977, is currently exploring the farthest edges of the solar system.

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Highlights

Voyager 1 powers down instrument to extend deep space mission
Spacecraft now over 15 billion miles from Earth still active
Two instruments remain as power levels continue to decline

In April 2026, NASA engineers turned off a science instrument aboard Voyager 1 to conserve power and keep it operating. Voyager 1, launched in 1977, is now the farthest human-made object, over 15 billion miles (24 billion km) from Earth and in interstellar space. Its radioisotope power source decays by ~4 watts a year, so mission teams sacrifice some science (the LECP particle detector) to preserve power for the remaining instruments.

Instrument Shutdown Details

According to NASA, on April 17, 2026, NASA's Jet Propulsion Laboratory engineers sent commands to shut down Voyager 1's Low-Energy Charged Particles experiment (LECP). The LECP had operated nearly continuously since launch, measuring low-energy ions, electrons, and cosmic rays in the interstellar medium. A planned Feb. 2026 power drop nearly triggered an automatic shutdown, so teams enacted a pre-agreed order of instrument retirements to save energy. Now only two instruments remain active (a plasma-wave detector and a magnetometer). Seven of the probe's original ten science instruments have already been turned off to keep the mission going.

Future Prospects

According to the engineers, turning off LECP would extend the life of the spacecraft by around a year. They have designed an aggressive program called “Big Bang,” where some parts will be replaced with low-powered substitutes. This would rnesult in the loss of valuable information provided by LECP regarding cosmic rays, but more wattage would become available to power the rest of the devices. Voyager 1 would still be sending data collected by the magnetometer and plasma wave science devices before its power runs out. It is not known when Voyager 1 will cease functioning.

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Further reading: Voyager 1, NASA, interstellar space, space exploration, deep space missions, spacecraft, Jet Propulsion Laboratory, cosmic rays, plasma waves, magnetometer