"Heir Apparent" by Alan Edward Nourse is a science fiction novel written in the early 1950s. The book explores the themes of aspiration, love, and the conflict between personal dreams and relationships, particularly set against the backdrop of space exploration. Focused on the life of an aspiring astronaut, it examines the emotional struggles that arise when the desire for adventure clashes with romantic commitments. The story follows Bart, a passionate young mandrawn to a life in the stars, as he navigates his ambitions to join an exploratory crew headed into space. His dream leads to a poignant conflict with Marny, the woman he loves, who fears for his safety and struggles to accept the idea of a life where he may constantly be away. As Bart grapples with his yearning for the cosmos and the implications of leaving Marny behind, their relationship becomes strained, ultimately leading him to confront the painful choices between love and the fulfillment of his dreams. The narrative unfolds with rich emotional depth, highlighting the complexity of human desires and the sacrifices that often accompany great ambitions. (This is an automatically generated summary.)