Superman (1939). Certain materials such as lead can block his X-ray vision. Superman can project beams of heat from his eyes which are hot enough to melt steel. He first used this power in "Superman" #59 (1949) by applying his X-ray vision at its highest intensity. In later stories, this ability is simply called "heat vision". Superman can hear sounds that are too faint for a human to hear, and at frequencies outside the human hearing range. This ability is introduced in "Action Comics" #11 (1939). "Action Comics" #1 (1938) explained that Superman's strength was common to all Kryptonians because they
The Death of Superman Superman" (). DC published another collection, "Superman: Doomsday", around the same time; it compiles comics that feature Doomsday's return (). "The Death of Superman" is divided into a trilogy of story arcs; the first is known as "Doomsday!", which leads to Superman's death at the hands of Doomsday. The second story arc, "Funeral for a Friend", which focuses on the immediate aftermath of Superman's death, began with "The Adventures of Superman" #498 (January 1993). The final story arc, "Reign of the Supermen!", began with a prologue in "The Adventures of Superman" #500 and introduced the Supermen. The title of this