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 to tell him that "The Death of Superman" impressed him. The four bestselling issues of 1993 were "The Adventures of Superman" #500, "Action Comics" #687, "Superman" #78, and "Superman: The Man of Steel" #22. Additionally, the first installments of "Reign of the Supermen!" were among the top five bestselling comic books of June 1993. Valiant Comics timed the release of "Bloodshot" #1 to the release of #75, and "" #1 to the release of "The Adventures of Superman" #500 to take advantage of the increased customers and boost sales. Both books included cover enhancements to attract customer attention. However, many