Why did Voyager 1 power down a science instrument?

Voyager 1 powered down its Low-energy Charged Particles experiment to conserve power as it travels deeper into interstellar space.

What is the 'Big Bang' upgrade for Voyager 1?

The 'Big Bang' is an ambitious maneuver planned by NASA engineers to reconfigure Voyager 1's power systems, potentially extending its lifespan and reactivating instruments.

How far is Voyager 1 from Earth?

As of the article's reporting, Voyager 1 is approximately 16 billion miles (25.40 billion kilometers) from Earth.

Home / Science / Voyager 1 Shuts Down Instrument to Save Power

Voyager 1 Shuts Down Instrument to Save Power

27 Apr

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Summary

Voyager 1 shut down a science instrument to conserve power.
A 'Big Bang' upgrade aims to extend the probe's lifespan.
Voyager 1 is over 16 billion miles from Earth.

Voyager 1 Shuts Down Instrument to Save Power

NASA has initiated a crucial power-saving measure for Voyager 1, the farthest human-made object from Earth. On April 17, 2026, engineers sent commands to deactivate the Low-energy Charged Particles experiment (LECP). This action is intended to preserve the spacecraft's limited power supply as it continues its journey through uncharted interstellar space.

The LECP instrument, which has been operational for nearly 49 years, was the top priority for shutdown from a pre-compiled list. This move is a strategic step to manage the probe's gradual power loss, estimated at 4 watts annually due to its radioisotope thermoelectric generators.