Humans call them Monument-Makers. An unknown race, they left stunning alien statues scattered on distant planets throughout the galaxy, encoded with strange inscriptions that defy translation. Searching for clues about the Monument-Makers, teams of 23rd century linguists, historians, engineers and archaeologists have been excavating the enigmatic alien ruins on a number of planets, uncovering strange, massive false cities made of solid rock. But their time is running out.

From a remote corner of the galaxy, a message is being sent. The continuous beats of a pulsar have become odd, irregular, and artificial. It can only be a code. Frantically, a research team struggles to decipher the alien communication. And what the scientists discover is destined to shake the foundations of empires around this world - from Wall Street to the Vatican.

When prospector Bob Broadhead went out to Gateway on the Heechee spacecraft, he decided he would know which was the right mission to make him his fortune. Three missions later, now famous and permanently rich, Robinette Broadhead has to face what happened to him and what he is...in a journey into himself as perilous and even more horrifying than the nightmare trip through the interstellar void that he drove himself to take!

When Van Tudor returns to his childhood home, he inherits more than the family farm. His grandfather used to tell him fantastic stories of spacemen and monsters, princesses and galactic knights. Little did Van realize, the old man's tales were more than fiction; they were real. Hidden beneath the old barn, Van’s legacy is waiting: a starship, not of this world. With his combat AI, an android bird named Perry, Van takes his first steps into the wider galaxy. He soon finds that space is far busier and more dangerous than he could have ever conceived.

Earth is no longer the center of the universe. After the invention of the faster-than-light jump drive, humanity is rapidly establishing new colonies. But the vast distances of space mean that the old order of protection and interstellar law offered by Earth has ceased to exist. When a nearby world attacks, the new colony of Glenlyon turns to Robert Geary, a young former junior fleet officer, and Mele Darcy, a onetime enlisted marine.

Geary believed in the Alliance. Even when he uncovered overwhelming evidence that the highest echelons of the government and fleet command were involved in secret programs and prison camps, he believed it was worth saving. He believed his duty was to see that justice was served even though some factions feared that revealing the truth would cause the Alliance to crumble. But after narrowly surviving two assassination attempts when he brings evidence of the misdeeds to the capital star system, Geary realizes that some want to get rid of him.

Fleet of Worlds takes a closer look at Human-Puppeteer (Citizen) relations and the events leading up to Niven's first Ringworld novel. Kirsten Quinn-Kovacks is among the best and brightest of her people. She gratefully serves the gentle race that rescued her ancestors from a dying starship, gave them a world, and nurtures them still. If only the Citizens knew where Kirsten's people came from.

When Enae's grandmaman passes away, Enae inherits something unexpected: a diplomatic assignment to track down a fugitive who has been missing for over 200 years. No one actually expects Enae to succeed; it's an empty assignment meant to keep hir occupied. But Enae has never had a true purpose—no one ever expected hir to do more than care for grandmaman—so sie is determined to accomplish this task to the best of her ability.

The Mote In God's Eye is their acknowledged masterpiece, an epic novel of mankind's first encounter with alien life that transcends the genre. No lesser an authority than Robert A. Heinlein called it "possibly the finest science fiction novel I have ever read".

In the 1800s, a sailing ship crashes off the coast of Norway. In the 1900s, a Zepellin explores an icy canyon in Antarctica. In the far future, a spaceship sets out for an alien artifact. Each excursion goes horribly wrong. And on every journey, Dr. Silas Coade is the physician, but only Silas seems to realize that these events keep repeating themselves. And it's up to him to figure out why and how. And how to stop it all from happening again.

The half-mad Prince Boleso has been slain by a noblewoman he had intended to defile. It falls to Lord Ingrey kin Wilfcliff to transport the prince to his burial place and to bring the accused killer, Lady Ijada, to judgment. The road he travels with his burden and his prisoner is fraught with danger. But in the midst of political chaos, magic has the fiercer hold on Ingrey's destiny, and Ijada herself may turn out to be the only one he dares trust.

A short story set in the universe of James S. A. Corey's NYT best-selling Expanse series. Now a Prime Original series. This story will be available in the complete Expanse story collection, Memory’s Legion.

Two centuries after the Confederation staved off an invasion by the robotic Locusts, Captain Jack Romanoff faces mandatory retirement from an ever-shrinking navy. Actions speak louder than words. The Confederation doesn’t think the Locusts are coming back. But what if the politicians are wrong?

Academy graduate Natalya Regyri stood first in line for her pick of engineering officer jobs, until, at the graduation party, a classmate turned up dead. Now, betrayed by her friends and framed for murder, she must flee beyond the reach of the Confederation...and any semblance of civilized society. With a damaged second-hand ship and TIC interceptors dogging her step, she nets a smuggling contract that might just get her back on her feet and in control of her destiny. But only if she's willing to make an ore run back to the place she's wanted for murder.

Joe Colsco boarded a flight from San Francisco to Chicago to attend a national chemistry meeting. He would never set foot on Earth again. On planet Anyar, Joe is found unconscious on a beach of a large island inhabited by humans where the level of technology is similar to Earth circa 1700. He awakes amid strangers speaking an unintelligible language and struggles to accept losing his previous life and finding a place in a society with different customs, needing a way to support himself and not knowing a single soul.

Humans call them Monument-Makers. An unknown race, they left stunning alien statues scattered on distant planets throughout the galaxy, encoded with strange inscriptions that defy translation. Searching for clues about the Monument-Makers, teams of 23rd century linguists, historians, engineers and archaeologists have been excavating the enigmatic alien ruins on a number of planets, uncovering strange, massive false cities made of solid rock. But their time is running out.

The Mote In God's Eye is their acknowledged masterpiece, an epic novel of mankind's first encounter with alien life that transcends the genre. No lesser an authority than Robert A. Heinlein called it "possibly the finest science fiction novel I have ever read".

Cities were crushed by the falling spacecraft, but one ship didn't crash. It remained intact and disgorged hordes of alien soldiers determined to fight to the death. The abandoned vessels also contained a wealth of advanced technology. Led by David Levinson, the greatest minds of our world developed deadly new hybrid weapons. Bases were built on the moon, Mars, and beyond. A new generation of defenders had to be trained, for the invaders would return.

People love easily. Look at most of your relatives or coworkers. How lovable are they? Really? Yet most have mates and children. The vast majority are still invited to family gatherings and their relatives will speak to them. Many have pets to which they are devoted. Some even call them their fur-babies. Is your dog or cat or parakeet property or family? Not in law but in your heart? Can a pet really love you back? Or is it a different affection? Are you not kind to those who feed and shelter you? But what if your dog could talk back? Would your cat speak to you kindly?

On June 30, 1908, an object fell from the sky, releasing more energy than a thousand Hiroshima bombs. A Siberian forest was flattened, but the strike left no significant crater. The anomaly came to be known as the Tunguska Event, and scientists have never agreed whether it was the largest meteor strike in recorded history - or something else. Alien artifacts have been uncovered since the 1908 event, and a new star drive is discovered.

Captain Vince Lombard, G-Marine company commander, is tasked with tracking down a stray ship. The Alliance Military Ship StarFire has gone silent, and previous attempts to locate her have resulted in the loss of more ships. After two previous wars with xenospecies humanity bumped into while expanding into space, no one knows what might be the cause of StarFire's missing in action status.

The date is 1966 of the Galactic Era, almost three thousand years from now, and the Republic, created by the human race - but not yet dominated by it - finds itself in an all-out war. They stand against the Teroni Federation, an alliance of races that resent Man's growing military and economic power. The main battles are taking place in the Spiral Arm and toward the Core. But far out on the Rim, the Theodore Roosevelt is one of three ships charged with protecting the Phoenix Cluster.

Kris Longknife is a daughter of privilege, born to money and power. Her father is the prime minister of her home planet, her mother the consummate politician's wife. She's been raised only to be beautiful and marry well. But the heritage of the military Longknifes courses through Kris' blood - and, against her parents' objections, she enlists in the Marines.

Boss loves to dive historical ships, derelict spacecraft found adrift in the blackness between the stars. Sometimes she salvages for money, but mostly she's an active historian. She wants to know about the past--to experience it firsthand. Once she's dived the ship, she'll either leave it for others to find or file a claim so that she can bring tourists to dive it as well. It's a good life for a tough loner, with more interest in artifacts than people.

They first appear as a series of dots on astronomical plates, heading from Saturn directly toward Earth. Since the ringed planet carries no life, scientists deduce the mysterious ship to be a visitor from another star. The world's frantic efforts to signal the aliens go unanswered. The first contact is hostile: the invaders blast a Soviet space station, seize the survivors, and then destroy every dam and installation on Earth with a hail of asteriods.

Aliens are spying on Earth from one of the four worlds that make up the Warden Diamond. But it is impossible to send agents to any of the four worlds because of unique microscopic symbionts that make it impossible for visitors to leave the Diamond. Seeking a unique solution, each of the four worlds making up the Diamond is sent a person whose mind has been stripped of everything and who is now controlled by an agent of the Confederacy. Lilith is the first planet to be visited.

Pilot X is Ambassador of the Alendans, a race with the ability to move through space and time as guardians of the timeline. Locked in ongoing conflict with the Sensaurians, an organic hive mind that can send messages in thought throughout its own history, and the Progons, a machine race who can communicate backwards in time, Pilot X finally manages to create peace among the three races.

Roger Torraway watched in horror as the monster lurched, toppled over and died. Project Man Plus had gone suddenly and drastically wrong. The race to colonize Mars was too important, too costly, and America was already too committed, for plans to be scrapped. They would have to make a new Martian. And Roger Torraway was it, candidate for the endless surgery, operation after painful operation, that would enable him to survive on that faraway planet.

Young Carmen Dula and her family are about to embark on the adventure of a lifetime - they're going to Mars. Once on the Red Planet, however, Carmen realizes things are not so different from Earth. There are chores to do, lessons to learn, and oppressive authority figures to rebel against.

Jason Burke was a man hiding from himself in a small cabin high in the American Rocky Mountains when his simple, quiet life was shattered one night by what he first assumed was an aviation mishap. But when he investigates the crash, what he finds will yank him out of his self-imposed exile and thrust him into a world he could have never imagined.