Starman's Quest by Robert Silverberg

This Halcyon Classics ebook is Robert Silverberg's sci-fi adventure STARMAN'S QUEST. The Lexman Spacedrive gave man the stars--but at a fantastic price. Interstellar exploration, colonization, and trade became things of reality. The benefits to Earth were enormous. But because of the Fitzgerald Contraction, a man who shipped out to space could never live a normal life on Earth again.