75 JUST IN: Astronauts Trapped in Space Capture Strange Sounds During Communication with Control—Radio Confirms Authenticity (Audio) (conservativeus.com) posted 81 days ago by conservativeamerica 81 days ago by conservativeamerica +75 / -0 JUST IN: Astronauts Trapped in Space Capture Strange Sounds During Communication with Control—Radio Confirms Authenticity (Audio... In a puzzling and eerie development, NASA astronaut Butch Wilmore recently reported hearing strange, unexplained noises emanating from a speaker 32 comments share 32 comments share save hide report block hide replies
Some commentary said it sounded like sonar pings, and it does. It also sounds to me like heartbeats. They are probably accidentally receiving EM signals from regular machinery in the ISS.