Hum of plasma waves in the 'void' of interstellar space detected by Voyager 1 

In the latest analysis of data from the intrepid probe, from a distance of nearly 23 billion kilometers (over 14 billion miles), astronomers have discovered, from 2017 onwards, a constant hum from plasma waves in the interstellar medium, the diffuse gas that lurks between the stars. “It’s very faint and monotone, because it is in a narrow frequency bandwidth,” said astronomer Stella Koch Ocker of Cornell University. “We’re detecting the faint, persistent hum of interstellar gas.”
Anyone care to say AWWMM  ?  ~ oz
Source: Hum of plasma waves in the ‘void’ of interstellar space detected by Voyager 1 — Science & Technology — Sott.net