Coming of Blue Star

This is the story of Blue Star a superhero who came to earth from a planet devastated by an accident at a chemical plant, which contaminated the entire planet making it unlivable for the foreseeable future, maybe forever. He believes that only himself and his sister survived. After landing on earth they were adopted by a normal seeming family, who were part of a secret organization that was formed to care for and protect refugees from other planets. Other refugees from different planets arrive, some are friendly and join him fighting evil, and others are not and become his enemies. He finds love, becomes a galactic marshal, and finds a missing princess, he survives seven nuclear explosions, becomes more powerful, gains new powers then has to learn to use them. Then has to defend earth from threats coming from space like a giant robot that wants to eradicate all life on earth, all while dealing with family emergencies and trying to live a normal life.