Over the years as Superman's mythos has expanded, we've been given relatively plausible explanations for his superhuman abilities(I'm not going to say it makes scientific sense for a difference in solar radiation to enhance his physical abilities but I'm willing to accept that explanation). However, he has a handful of abilities, mostly related to his vision powers, that don't make quite as much sense.
As his senses are all enhanced over a normal human's, I'm willing to accept (to a certain degree) his telescopic and microscopic vision powers. But what's the explanation for him being able to look through solid, opaque objects or fire laser beams ftom his eyes? Even with enhanced senses that stretches the credibility of what he should be able to do.
Yes, I'm well aware I'm talking about a fictional character that's had stories written about him by hundreds of different people olin the past, many of whom did not have a Mort Weisinger looming over their shoulders to make silure the continuity lined up. Still, this is just something I'm curious about.