US Coast Guard releases recording that appears to be audio of Titanic submersible implosion
The brief, staticky recording includes a loud noise that sounds somewhat like an underwater thunderclap, then goes silent.
Smithsonian Magazine49m
A 785-Foot Airship Crashed on This Day in 1935. The Location of the Wreck Site Remained a Mystery for More Than 70 Years
The USS Macon crash brought a quick end to the U.S. Navy’s vision of “flying aircraft carriers” powered by helium gas ...