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
Superman and Lois Lane was killed off by Doomsday in "Superman" #75 (Jan. 1993). After a year of mourning, searching and resurrecting in "The Death and Return of Superman" storyline, Superman returned to the land of the living and the arms of Lois Lane. However, because Clark and Lois on the television series met as strangers when the show debuted in September 1993. DC Comics launched a series of stories designed to keep them apart in the comics, including a broken engagement arc. When Clark and Lois on the television series finally married in October 1996, so did their comic book counterpart in the