On August 6, 1945, Naval engineer Tsutomu Yamaguchi was working on designing ships and oil tankers in Hiroshima, Japan. World War 2 had been profitable for his career, as he’d been there for the past three months working on a project, and was finally about to head home. Upon his journey home, he saw an object falling from a plane when suddenly, he saw an explosion in the sky. Reacting quickly, he reverted to a nearby ditch for cover.

Upon awakening, the sky above him was black with smoke covering the entire city. His arms and face were extremely burned, and his eardrums had ruptured. Panicked and scared, he eventually made his way back home, joining fellow survivors who were then taking the train to leave town. Hiroshima was completely desecrated with a reported death toll of over 80,000.

Upon returning to his hometown of Nagasaki, Tsutomu was unrecognizable to his family. Post recovery, he eventually returned to his work life. While explaining to his superiors the horrors he had seen, he then saw an all too familiar flash in the sky. Yamaguchi had managed to survive yet again, and found his family was just as lucky. Today, Yamaguchi is officially recognized as a “double atomic bomb survivor.” Despite the health challenges that came with surviving two atomic fallouts, Tsutomu lived until 2010 as a strong activist towards nuclear arms disarmament.