The Manhattan Project that built the atomic bomb wasn't without its own dangers. Experiments on a so-called "demon core" of plutonium caused the deaths of two Manhattan Project physicists. Both ...

I think we can all agree that the physicists, engineers, and chemists who worked on the Manhattan Project -- which ultimately ended World War II -- were consummate geniuses and paragons of ...

RENO, Nev. – The plutonium core for the first atomic weapon detonated in 1945 was taken from Los Alamos National Laboratory to a test site in the New Mexico desert in the backseat of a U.S. Army sedan ...

Harry Daghlian and Louis Slotin were two of many people who worked on the Manhattan Project. They might not be household names, but we believe they are the poster children for safety procedures. And ...

The Demon Core was meant to be the heart of the third atomic bomb. What made scientists so afraid of the Demon Core? In today's video we look at one of the most powerful materials found on this Earth, ...

A plutonium core from the Manhattan Project became deadly when two laboratory accidents exposed scientists to fatal radiation ...

This image from 1945 shows Manhattan Project physicist Harold Agnew smiling and holding the plutonium core of one of the world's most devastating weapons. Weighing 14 pounds and responsible for 80,000 ...

ALBUQUERQUE, N.M. (AP) — Transported in the backseat of a blacked-out Plymouth sedan was the culmination of years of feverish work — a hefty plutonium core that would soon be used to trigger the world ...

At first glance, the metals that give atom bombs their destructive fury might seem interchangeable: Uranium and plutonium are both more valuable than gold. Both captivate would-be atomic powers. And ...