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 fan Shaquille O'Neal. Eradicator received a limited series, Superboy remained a fixture of the DC Universe until he was killed in "Infinite Crisis" (2005–2006), and the Cyborg Superman became a recurring enemy of Superman and Green Lantern. Later comics featuring Doomsday included "" (1995), which explores his origin, and "Reign of Doomsday" (2011), which heavily references "The Death of Superman" and features him hunting down the Supermen. In 2011, DC relaunched its entire comics line in an initiative called The New 52, which revamped the DC Universe and erased certain events. The relaunch altered Superman considerably, characterizing him as