University of California, Merced professor Sean Malloy recently unearthed 10 previously-unpublished photographs illustrating the aftermath on the Hiroshima bombing. They are not for the weak of stomach.

"I came across these will research my recent book on the bomb, Atomic Tragedy," he tells DANGER ROOM. "They were found in a cave outside Hiroshima by a U.S. serviceman who was part of the occupation forces. We have no information about who took the photos, what became of him/her, or why the photos ended up in a cave. The serviceman held onto to them in his personal collection until 1998, when he donated them to the Hoover Archives [at Stanford University] with the provision that they not be reproduced until 2008. I included three of these photos in my book, but I wanted to make them all publicly available."