On April 10, 1963, USS Thresher—the Navy’s most advanced nuclear submarine—slipped beneath the Atlantic for deep-dive trials... and never resurfaced.

In this episode of Dave Does History, we explore the events of that fateful day, the suspected cause of the disaster, and how the loss of 129 souls reshaped the U.S. Navy forever.

It’s a story of innovation, tragedy, and transformation.

Listen now on Spotify, iTunes, or the iHeart Radio App—because some lessons are written not in ink, but in steel... and cold water.