New, top secret devices will also be used at the underground lab later in 2025 to contain microscopic explosions - simulating ...

A thousand feet beneath the desert, the United States conducts experiments to verify that its weapons work. But some fear a live test could come soon.

A group of journalists were allowed to tour a weapons laboratory deep underground in Frenchman Flat, Nevada. NPR's science correspondent Geoff Brumfiel was among them.

Thanks to the development of a special tracking collar, scientists are now reviewing data to understand the lives of ...

New, top secret devices will also be used at the underground lab later in 2025 to contain microscopic explosions - simulating the blast of an atom bomb. NNSA invited journalists to the base known ...

Step inside the secret lab where America tests its nukes ... The work is taking place in a facility known as the Principal Underground Laboratory for Subcritical Experimentation (PULSE).

Thanks to the development of a special ferret-sized tracking collar, scientists are now reviewing data collected last fall to peek into the secret underground lives of the rare and elusive animals.