Watch how the first atomic bomb test unfolded, as scientists pushed the limits of physics in a race to end the war. Behind the scenes, there were real fears that the explosion could trigger a chain ...

Add Yahoo as a preferred source to see more of our stories on Google. The only well-exposed color image of the Trinity test. (Jack W. Aeby/Manhattan Project/Public Domain) We don't always get to ...

In a chilling reminder of the destructive power of nuclear weapons, scientists continue to study a rare radioactive mineral that was accidentally created during humanity's first-ever atomic bomb test ...