Going North into Scotland, as I did a few days ago, means it is easier to see the Northern Lights. This Aurora Borealis is caused by solar flares sending charged particles into the Earth's magnetic field.
As well as seeing them, it is also possible to hear them because they are really very low frequency radio waves which encroach into the aural spectrum. The sound phenomenon is known as "Dawn Chorus" and can sounds like flocks of birds singing as well as clicks and strange metallic raining sounds.
The bursts of chirps and squawks seem to suddenly commence, and over the course of two to five seconds, weaken and fade away, then repeat over again, often in different pitches.
Think of it as the sound of stars.
Tag: cosmic, stars, sun
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