Faraway NASA probe detects the eerie hum of interstellar space | Reuters

“The persistent plasma waves that we’ve just discovered are far too weak to actually hear with the human ear. If we could hear it, it would sound like a single steady note, playing constantly but changing very slightly over time,” said Stella Koch Ocker, a Cornell University doctoral student in astronomy and lead author of the study published this week in the journal Nature Astronomy.

via www.reuters.com

Hmmmmmmmmm.