As Japan solemnly marks the 80th anniversary of the atomic bombings on Hiroshima and Nagasaki this week, the world reflects on one of the darkest and most defining moments of modern history. On 6 ...

The first reports were met with disbelief. A single bomb with the explosive force to level a city; a bomb, detonated with such intensity it burned as bright as — maybe, even brighter than — the sun.