Innovations in high-speed photography at Los Alamos helped develop photography into its modern-day form.

A detailed timeline of the bombings of Hiroshima and Nagasaki.

A list of the planes and the crews that flew on the Hiroshima and Nagasaki bombing missions.

Although frequently omitted from official histories, Hispanos have served in pivotal positions at Los Alamos since its inception.

A number of scientists associated with the Manhattan Project were eventually investigated by the House Un-American Activities Committee.

Between April 1945 and July 1947, eighteen subjects were injected with plutonium, six with uranium, five with polonium, and at least one with americium in order to better understand the effects of radioactive materials on the human body.

In January 1950, President Truman made the controversial decision to continue and intensify research and production of thermonuclear weapons.

How to separate the much more potent U-235 from its abundant relative, U-238 consumed thousands of hours and millions of dollars.

In the aftermath of the attack on Pearl Harbor, President Roosevelt ordered the "evacuation" of Japanese Americans to relocation and internment camps under Executive Order 9066.