Mysterious Sounds Above Earth.....

[LongTermGuy]

`University of North Carolina Chapel Hill graduate student Daniel Bowman designed infrasound microphones that were flown into near-space on a high-altitude balloon flight conducted by NASA and the Louisiana Space Consortium last year. It recorded mysterious hisses and whistles that sound`



Video:

https://screen.yahoo.com/slate/mysterious-sounds-above-earth-164506547.html