The Ledoux test was among the last nuclear ... the core of a bomb. The final stop on the tour is an experiment that's getting ready to test plutonium later this spring. It's called Cygnus, and it's ...

A half-mile from here, on the morning of May 8, 1953, an Air Force bomber dropped a Mk-6D nuclear bomb from a height of ... The Ledoux test was among the last nuclear weapons the U.S. ever detonated.

Tucked away in a forgotten corner of Mount Dora sits a Cold War-era nuclear bomb shelter with a crazy history. Known locally as the “Mount Dora Catacombs,” this 5,000-square-foot shelter — billed as ...