Postmark Ganymede by Robert Silverberg Episode #411

Robert Silverberg | August 31, 2025

Postmark Ganymede by Robert Silverberg Episode #411
Robert Silverberg

POSTMARK GANYMEDE

Episode #411 · Written by Robert Silverberg · Narrated by Scott Miller

A disgraced space patrolman is reassigned to the most humiliating post imaginable—ferrying mail across the Solar System. But when his route to Ganymede turns into a life-or-death gauntlet of pirates and alien predators, delivering the mail may be the most dangerous mission of his career.

In Postmark Ganymede, Hal Preston is furious, humiliated, and certain that his career is over. Once a proud member of the Space Patrol, he’s been reassigned to the Postal Service—a fate he interprets as an insult and a punishment. His new mission seems like an embarrassment: fly a stripped-down patrol craft with no weapons and deliver mail to a far-flung colony on Ganymede. But as soon as he lifts off, the universe reminds him that danger doesn’t care about pride. Pirates lurk in the asteroid belt, patrol ships fall in desperate combat, and the colony he’s meant to serve is trapped behind a living barricade of monstrous iceworms.

As the situation spirals into chaos, Preston’s bitterness gives way to something deeper—a rediscovery of duty, courage, and the thrill of doing real, meaningful work. The story is brisk, engaging, and full of that vintage sense of wide-open solar system adventure. It’s a tale of grit, ingenuity, and unexpected heroism, wrapped in the pace and color that Silverberg brought so naturally to print.

ABOUT THE AUTHOR

Robert Silverberg stands as one of the great architects of science fiction’s mid-century expansion. Beginning his career as a prodigious young writer, he quickly became one of the field’s most productive and versatile talents, contributing hundreds of stories across magazines and anthologies. His work spans space adventure, deep philosophical fiction, alternate history, and thought-provoking speculation. Over the decades, he earned multiple Hugo and Nebula Awards, cementing his reputation as a true master of the genre. Silverberg’s stories remain vibrant, clever, and eternally readable, and Postmark Ganymede showcases the energetic storytelling that helped launch his legendary career.

LISTEN TO THE STORY

Listen to Postmark Ganymede by Robert Silverberg — a vintage sci-fi adventure of danger, duty, and courage as a disgraced pilot faces pirates and alien threats to deliver the mail.