There have been a few videos of late that we’ve told you to watch full-screen and in HD. This is another. Made by Ruth Jarman and Joe Gerhardt (Semiconductor Films), “20 Hz observes a geo-magnetic storm occurring in the Earth’s upper atmosphere. Working with data collected from the CARISMA radio array and interpreted as audio, we hear tweeting and rumbles caused by incoming solar wind, captured at the frequency of 20 Hertz.” Incredible.