Atlas Contingency (en Inglés) - Tristan M Cole

There's a familiar comfort in holding the ones you love. John, a seasoned nurse working for the United Earth Coalition, feels alone. Despite the constant companionship of his friend, Serena, he can't shake the gruesome fate of his closest friend. Though some memories refuse to stay dead as the construct, Keller, takes the name and memories of that same friend. Among the stars there lies a far worse fate for them. Tasked by one, Dr. Greenbaum and the UEC; John, Keller, Serena, a mysterious scientist, and a fatherly pilot take to space to try and uncover a strange signal.