Lex Luthor genetically engineered a human to be like a living H-Bomb to try and kill Superman on his voyage to the sun with some of Earth's scientists: (please log in to view the image)
How intense is the corona you ask? Its the same as having 100 billion H-Bombs per second explode in your face: (please log in to view the image)
Superman it returning to the ship where the scientists are, and the human bomb attacks him, and they fall towards the sun: (please log in to view the image)
Superman uses his powers to get this genetically altered human bomb off of him, which allows his body to absorb an immense ammount of solar radiation: (please log in to view the image)
Superman displays a new power obtained from absorbing this immense ammount of solar rays by using his own bio-electric field to shield the scientists' ship: (please log in to view the image)
Now they are beginning to do so extensive tests, and Superman displays what is possibly the most impressive strength feat to date, by pushing against the equivelent of 200 Quintillion tons (with one arm). The scientist estimates his strength more then tripled: (please log in to view the image)
Superman now decides to show Lois his Fortress of Solitude. Superman leaves the key to his Fortress out in the open, when Lois remarks on how that dosen't seem safe, Superman tells her that he is the only person on Earth who can lift it because, the key is composed of an ultra-dense material, and weighs 500,000 tons: (please log in to view the image)
Superman obtained a creature from the Phantom Zone (possibly Solaris), and to keep it alive, he feeds it miniature Suns which he himself created on New Olympus: (please log in to view the image)
Superman reveals to Lois, that his trip to the sun did much more then just triple his strength, and give him new abilities: (please log in to view the image)
Lois is somewhat frightened by Superman's new found honesty towards her, she dosen't believe him at first, and she is afraid for her life. So she then goes to an armory of confiscated weapons Superman had, and she takes the Kryptonite gun: (please log in to view the image)
Superman finds Lois, and she is so paranoid that she fires the Kryptonite gun at him, only to find out that Superman no longer has a weakness to Kryptonite, he remarks on how it tickles: (please log in to view the image)
At this point in the story Superman becomes infected with black Kryptonite that Jimmy Olsen had obtained, and this version of Kryptonite turns Supes into a mindless, and evil brute. He breaks free of the lab, and is confronted by Voyager and Bizarro clones that had been engineered as safeguards: (please log in to view the image)
Luthor (who had been convicted for crimes against the world) was in prison and Clark Kent came to interview him. In the middle of this, a riot insued. Clark effortlessly saved Lex's life without him even knowing: (please log in to view the image)
This is just kind of a funny scan, Clark is interviewing Lex Luthor while he works out, and Luthor pauses to have Clark feel his "guns" (please log in to view the image)