For centuries, unusual sounds have been reported throughout the world. From the quaking "Ton der Dove-Bai" reported in Greenland to the mysterious "Bloop" recorded by NOAA in the 1990s, odd sounds of unexplained origin have captured our imagination and hinted at phenomena in our world that continue to evade us in modern times. Arguably, one of the strangest unexplained acoustic phenomena ever reported involves the mysterious "Quackers" encountered by Soviet submarine crews during the Cold War. Did these deep sea anomalies represent Soviet USO encounters, mysterious deep-sea animals, an experimental U.S. technology, or something else entirely? This week, we go in search of answers to these questions on The Micah Hanks Program. The story doesn't end here... become an X Subscriber and get access to even more weekly content and monthly specials. Want to advertise/sponsor The Micah Hanks Program? We have partnered with the fine folks at Gumball to handle our advertising/sponsorship requests. If you would like to advertise with The Micah Hanks Program, all you have to do is click the link below to get started: Gumball: Advertise with The Micah Hanks Program Show Notes Below are links to stories and other content featured in this episode: NEWS: • Brutal heat maintains grip on the Southwest Defining the Anthropocene: Radioactive traces in ocean materials mark start of the modern age North Korea warns it may shoot down US spy planes violating its airspace A record share of Americans is living alone | The Hill STRANGE SOUNDS: • What is the bloop? THE QUACKERS: • Ghosts from the Bottom of the Sea (Russian Language) UFO: Croaking in the Ocean (Russian Language) BECOME AN X SUBSCRIBER AND GET EVEN MORE GREAT PODCASTS AND MONTHLY SPECIALS FROM MICAH HANKS. Sign up today and get access to the entire back catalog of The Micah Hanks Program, as well as “classic” episodes of The Gralien Report Podcast, weekly “additional editions” of the subscriber-only X Podcast, the monthly Enigmas specials, and much more. Like us on Facebook Follow @MicahHanks on Twitter Keep up with Micah and his work at micahhanks.com.