The Angel’s Glow. At the Battle of Shiloh, some wounded Civil War soldiers saw their injuries glowing blue in the dark. And somehow, those men were more likely to survive. For more than a century, “Angel’s Glow” sounded like battlefield folklore. Then two high school students helped crack the case: the light likely came from bioluminescent bacteria carried by tiny worms, which may have killed off deadlier infections. It wasn’t exactly divine intervention. But in that muddy, freezing battlefield, it was close enough.
—Andrew Daniels, Director of News