Cygnus Rising: Humanity Returns to Space (Cygnus Space Opera Book 1) by Craig Martelle

From the ashes of their past, Cygnus was rising.

Following in the footsteps of their forefathers, humanity returns to space to explore, learn what the galaxy has to offer, maybe even return to Earth. Cain, the great-great-grandson of the ones who brought peace and free trade back to Planet Cygnus VII, finds himself challenged to live up to the deeds of his ancestors, driven to excel he joins the Space Exploration Service trying to earn a position on the latest deep space exploration vessel.