Near invulnerability: In the 1940s, "nothing less than a bursting artillery shell could break his skin"; by the 1970s he could fly through a star and shrug off a nuclear blast. In 1986, Superman was somewhat depowered. Still able to withstand artillery shells, lasers, and even nuclear explosions, he would be killed if he flew into a star. His powers have since increased, allowing him to fly into the sun unharmed. Because Superman's powers are partly due to Earth's yellow sun, in Action Comics #782 (October, 2001), during the "Our Worlds at War" series, Superman flies through the sun, which gives him enough strength and power to move an entire planet. In addition, his immune system protects him from toxins and diseases.
