The Invisible Woman (Susan "Sue" Storm-Richards), previously known as the Invisible Girl, is a fictional super-heroine appearing in American comic books published by Marvel Comics. The character is a founding member of the Fantastic Four and was the first female superhero created by Marvel during the Silver Age of Comics. Sue Richards receives her powers by being exposed to a cosmic storm. Her primary power deals with light waves, allowing her to render herself and others invisible. She can also project powerful fields of invisible psionic energy which she uses for a variety of offensive and defensive effects. Richards plays a central role in the lives of her hot-headed younger brother Johnny Storm, her brilliant husband Reed Richards, her close friend Ben Grimm, and her children (Franklin and Valeria). She was also romantically involved with Namor the Sub-Mariner for a time, and they remain close friends.