"Better Living Through Atomic Power"

Atomicus appears in the Astro City Trade Paper Back Local Heroes.
He is basically a cross between Superman and The Nuclear man Firestar.

Local Heroes tells the story of a woman and her pursuit of a 1950's super hero - Very much like Lois Lane and Superman/Clark Kent. Except in this tale, the relationship goes sour.

I really enjoy all the Astro City Stories, and I thought this character in particular looked really cool