The brief, staticky recording includes a loud noise that sounds somewhat like an underwater thunderclap, then goes silent.

The U.S. Coast Guard has released a 20-second audio clip believed to have captured the final moments of the Titan submersible before it imploded in June 2023 amid a voyage to visit the Titanic.

J. Bruce Ismay’s life was changed in an instant. At 1:40 a.m. on April 15, 1912, sporting pajamas under a suit and topcoat, ...