Tags
Angel's Glow, Folklore, Gothic Fiction, J. R. R. Tolkien, Mental Floss Magazine, Photorhabdus luminescens, Spawn, Superstition, The Rime of the Ancient Mariner, Todd McFarlane, Vampirism
From comic book hero Spawn to the undead in Tolkien’s Middle-Earth, undead creatures are often portrayed with glowing eyes, or glowing body parts.
Which looks rather dramatic, but is easy to explain – as this article does:
Mental Floss – Why Some Civil War Soldiers Glowed in the Dark
Now, the article tells this story as if it was something new and sensational, which is not true: I remember to have heard similar explanations for similar phenomena many years ago already, I think in connection with explanations of vampirism.