Lemire is great a pulling the heartstrings, and he did it again with his Starman expy Black Hammer series. In it, the title character "Doctor Star" used his star energy rod to explore the universe when his son was a young boy. On one adventure, saved some aliens from a threat, and ended up facing time dilation because of a nearby black hole.
He left Earth in 1951, and returned in 1969. His son got maimed in Vietnam when he was gone, and their relationship deteriorated to nothing.
In the present time, he has learned that his son is dying of cancer, and he seeks out those aliens that he saved before because he observed that they had strong healing abilities. When he returned to space, he saw that the aliens formed an equivalent of the Green Lantern corps using Doctor Star's power source.
They tell him that they cannot save his son, but are about to embark on a galactic space mission to explore the universe.
Doctor Star (Jim Robinson) has to make a choice.
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