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
1940s in comics under the imprint Frank Comunale Publications. The company would begin publishing under the Charlton name in 1946. Superboy, the adventures of Superman as a boy, first appears in "More Fun Comics" #101. The character is currently the subject of a legal battle between Time Warner, the owner of DC Comics, and the estate of Jerry Siegel. The Siegel estate claims that the original "Superboy" character published by DC Comics is an independent creation that used ideas from Jerry Siegel's original rejected pitch and was created without his consent. The All-Winners Squad, the first superhero team in the Marvel Universe, first