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What Does The Earth Sound Like In Space (AUDIO)

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What does the Earth sound like in space?

Well, nothing. There's no air in space, so no sound. Right?

Actually... no. There's an awful lot of 'stuff' happening around the Earth in space, and if you have the right equipment you certainly can build those up into sounds.

For instance, plasma waves in Earth's radiation belts create an electromagnetic phenomenon known as 'chorus', which operators have been able to listen to from back home for years.

Now Nasa's two Radiation Belt Storm Probes are travelling through the area where it comes from - and Nasa has released the recording.

"This is what the radiation belts would sound like to a human being if we had radio antennas for ears," said Craig Kletzing, whose team at the University of Iowa built the "EMFISIS" (Electric and Magnetic Field Instrument Suite and Integrated Science) receiver which made the recording.

Eventually, he wants to go one better: stereo.

"We have two spacecraft with two receivers," he says, "so a stereo recording is possible."

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