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Having travelled from planet to planet, only one thing can slow Voyager 2 – a flat battery

To save power, NASA has switched off another scientific instrument on its long-running Voyager 2 spacecraft.

After decades exploring space, Voyager 2 has been forced to shut down some electrical instruments to save power (image: NASA)

After decades exploring space, Voyager 2 has been forced to shut down some electrical instruments to save power (image: NASA)

 

The space agency said that Voyager 2’s plasma science instrument – designed to measure the flow of charged atoms – was powered down in late September so the spacecraft can keep exploring for as long as possible, expected into the 2030s.

NASA turned off a suite of instruments on Voyager 2 and its twin Voyager 1 after they explored the gas giant planets in the 1980s.

Both are currently in interstellar space – the space between stars.

The plasma instrument on Voyager 1 stopped working long ago and was finally shut down in 2007.

Four remaining instruments on Voyager 2 will continue collecting information about magnetic fields and particles.

Its goal is to study the swaths of space beyond the sun’s protective bubble.

Launched in 1977, Voyager 2 is the only spacecraft to visit Uranus and Neptune.

It is currently more than 19.31 billion kilometres from earth.

Voyager 1 is more than 24.14 billion kilometres from earth.

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