Europa's icy surface and possible ocean beneath it may emit a glow into space. Credit: NASA/JPL-Caltech/SETI Institute By replicating conditions that may be present on the surface of Europa, one of ...
Scientists in China have created rainbow, glow-in-the-dark succulents by injecting colorful "afterglow" particles into the leaves that absorb, and then gradually release, light. The luminescent ...
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 ...