Not all sounds can be heard by the human ear. For example, the sound made by a dog whistle. Or by a bat. Or by this insane person named Tim Storms from the U.S who can produce a sound that is 0.189 Hz. Even in the sounds we hear, there are many to which we don’t pay attention. For instance, the sound of trees rustling outside. Unless, maybe, if you are alone at home, it’s a cold night, and you thought watching a horror movie was a good idea.
Some sounds, however, are so strange that you don’t need to be alone at night to feel creeped out. Luckily–for those who do not want to live in a world where creepy sounds can travel to their ears and tingle their flesh–these sounds exist in space. In 2017, NASA recorded these sounds and made a playlist of them.
To be accurate, NASA gathered radio waves from space and turned them into sounds that are audible to the human ear. NASA uploaded them on their SoundCloud account. Yes, NASA has a SoundCloud account. No, they are not venturing into the indie SoundCloud artist space.
Rather they are trying to find out more about the outer space by analysing the radio particles in the Van Allen Radiation Belt. The Earth is surrounded by two doughnut-shaped rings that form the radiation belt. These rings are highly charged with radioactive, although the density of radiation may vary in different parts of the rings. The Belt was named after James Van Allen who discovered them in 1958.
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