Headphones or a subwoofer are heavily suggested
This is a specially formulated ambient sleep sound created with only the actual electromagnetic emissions produced by the Earth which have been converted into super deep sound waves. This deep bass relaxation noise morphs around for hours as it lulls you to sleep, helps you focus at work, gets you relaxed, or helps put the baby to bed.
Original space audio recordings provided courtesy of NASA and Donald Gurnett of The University of Iowa.
