Hey--we haven't checked in with Lex Luthor for awhile. How have you been doing, Lex?
Smooth one, Luthor.
How did this happen? Well, old chrome dome had created a creature he called the Galactic Golem, and it was kicking Superman's butt:
Fortunately for all of us, everything is not as it seems...
Let's look at that again:
REMOVED EVERY SINGLE LIVING THING FROM THE PLANET!!!
In a microsecond.
Just by "increasing his vibrations."
And you thought that Superman was too powerful in the Silver Age.
But even Luthor has to smile at this outcome...
From Superman #248 (1972)