Panic at the picnic
When the ground starts shaking during a summer soirée, students wonder if the cause is an earthquake or an underground explosion.
- Paul Ziomek, illustrator


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The work performed by Los Alamos National Laboratory at the Nevada National Security Sites helps maintain the credibility of the U.S. nuclear deterrent and reinforces a commitment to global security.

A brief overview of the Nevada National Security Sites (NNSS).

The Los Alamos office helps streamline Lab work at the Nevada National Security Sites.

Los Alamos Operations develops technology for the nuclear security enterprise.

Scientists study shallow earthquakes to understand how they differ from underground explosions.

Mock assemblies of nuclear weapons are put to the test just 160 miles northwest of Las Vegas.