Date: 19/06/2015 10:57:34
From: CrazyNeutrino
ID: 738594
Subject: Auroras sound like an alien party
Auroras sound like an alien party
Scientists have recorded the soundtrack to an aurora, and it sounds a bit like happy hour at an alien bar.
Those beepy/chirpy/R2D2 noises may seem ordinary compared to the amazing lights they accompany, but the story behind them is pure science.
The noises are actually the sound of radio waves generated thousands of kilometres above the Earth’s atmosphere by the same high energy electrons that eventually cause the spectacular light show down below.
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