Site 300

After the first successful atomic bomb test in 1945, code-named Trinity, a new era in global politics began. Unlocking the power of the atom sparked a race among world governments—not just to build bigger weapons, but smaller, cheaper, and more agile ones. Achieving this would require rapid iteration to stay ahead.

In 1955, the Atomic Energy Commission purchased 3,400 acres of farmland near Livermore. This barren stretch, later known as Site 300, became the proving ground for the Lab’s most ambitious innovations. What unfolded there would shape the future of weapons development—and change the course of history.

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Big Ideas Lab is a Mission.org original series. 

Executive Produced and Written by Lacey Peace. 

Sound Design, Music Edit and Mix by Daniel Brunelle. 

Story Editing by Daniel Brunelle. 

Audio Engineering and Editing by Matthew Powell. 

Narrated by Matthew Powell. 

Video Production by Levi Hanusch. 

Guests featured in this episode (in order of appearance): 

• Valerie Dibley, Site 300 Manager at LLNL
• Brian Cracchiola, Explosive Operations Manager for the Strategic Deterrence Directorate at LLNL
•  Jeff Florando, Associate Program Director for Hydrodynamic and Subcritical Experiments in the Weapons Physics and Design Program at LLNL

Brought to you in partnership with Lawrence Livermore National Laboratory.