A newly discovered molecular phenomenon is responsible for the spectral balls of light seen in swamps and cemeteries ...

Hovering blue flames that flicker over bogs and marshes have inspired ghostly folktales for centuries. Known as “will-o’-the-wisp,” “jack-o’-lantern,” “corpse candle” and “ignis fatuus” (“foolish fire ...

For centuries, people have reported strange, flickering lights over marshes and cemeteries. In folklore, these lights were called “will-o’-the-wisp” in Britain or “lygtemænd” in Scandinavia. Some ...