The Invisible Ray is a 1936 American science fiction horror film directed by Lambert Hillyer. The film concerns a scientist who creates a telescope-like device that captures light waves from the Andromeda Galaxy, giving him a way to view the distant past. Using this knowledge, he travels to Africa to locate a large, unusual meteorite that fell there a billion years earlier. He discovers that the meteorite is composed of a poisonous unknown element, "Radium X". After exposure to its rays begins to make him glow in the dark, his touch becomes deadly, and he begins to be slowly driven mad.