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
Cyborg Superman Cyborg Superman Cyborg Superman is a persona that has been used by two fictional characters in the DC Universe, both of which are supervillains that appear in comic books published by DC Comics. Hank Henshaw was an astronaut at NASA until a solar flare hit his space shuttle during an experiment in space, damaging the ship and the crew. Henshaw and the crew found that their bodies had begun to mutate and, after returning to Earth, Henshaw's entire crew (including his wife) eventually committed suicide. After learning that Superman had thrown the Eradicator into the sun in a battle during