Hard Science Fiction Space

Warden Torin Kerr has put her past behind her and built a life away from the war and everything that meant. She's created a place and purpose for others like her, a way to use their training for the good of the Confederation. She has friends, family, purpose. Unfortunately, her past refuses to grant her the same absolution. Big Yellow, the ship form of the plastic aliens responsible for the war, returns. The Silsviss test the strength of the Confederation. Torin has to be Gunnery Sergeant Kerr once again and find a way to keep the peace.

A sequel to Sir Arthur C. Clarke’s Nebula Award–winning novella “A Meeting with Medusa,” this novel continues the thrilling adventure of astronaut Howard Falcon, humanity’s first explorer of Jupiter from two modern science fiction masters. Howard Falcon almost lost his life in an...

Avalon was thriving. The cold sleep colonists from Earth had settled on a verdant, livable world. The fast and cunning predators humans named “grendels” were under control, and the mainland outposts well established. Avalon’s new mainland hydroelectric power station was nearly complete, and when on-line would compensate for the nuclear power systems lost in the Grendel Wars. Humans would have power, and with power came the ability to make all the necessities for life. They would survive. They would not survive as a spacefaring people.

A major new novel from one of science fiction's most powerful voices, Aurora tells the incredible story of our first voyage beyond the solar system. Brilliantly imagined and beautifully told, it is the work of a writer at the height of his powers. Our voyage from Earth began generations ago. Now...

Although the exciting military career she hoped for never got off the ground, Ky Vatta ended up seeing plenty of combat when she took the helm of one of the commercial transport vessels in her family's fleet...and steered it into a full-blown war. Now the lessons she learned in that trial by fire are about to pay off---because this time, the war has come to her. Someone has launched a full-throttle offensive against Vatta Transport Ltd., Ky's father's interstellar shipping empire.

Habitats is the seventh in a series of near future sci-fi/thrillers, whose young heroine Ell Donsaii has a nerve mutation which has made her a genius as well as an athletic phenomenon. In Habitats, she is continuing to find uses for the quantum-entangled wormholes she discovered. These wormholes aren’t big enough to send people through, yet they are making huge changes in our world.

The legendary battle-carrier UFS Phoenix is on the run in Outer Neutral Space. Lieutenant Commander Erik Debogande and Major Trace Thakur are determined to use neutral territory to broker a peace between humanity's warring factions, away from Fleet's strong arm. But as machinations in Fleet Command send a legendary warrior from Trace's past on a sworn path to kill her, there arises in the territory of an insectoid foe an ancient enemy from the nightmares of Spiral history, bent on Phoenix's destruction….

On a privately financed orbital habitat above the planet Uranus, political idealism conflicts with pragmatic - and illegal - methods of financing. Add a scientist who has funding to launch a probe deep into Uranus‘ ocean depths to search for signs of life, and you have a three-way struggle for control. Humans can’t live on the gas giants, making instead a life in orbit. Kyle Umber, a religious idealist, has built Haven, a sanctuary above the distant planet Uranus.

From New York Times bestselling author Cixin Liu comes a short story collection of captivating visions of the future and incredible re-imaginings of the past. In To Hold Up the Sky, Cixin Liu takes us across time and space, from a rural mountain community where elementary students must use...

For five centuries, human life has been restricted to Earth, while posthuman descendants called alloys freely explore the galaxy. But when the Earthlike planet of Meru is discovered, two unlikely companions venture forth to test the habitability of this unoccupied new world and the future of human-alloy relations. For Jayanthi, the adopted human child of alloy parents, it’s an opportunity to rectify the ancient reputation of her species as avaricious and destructive, and to give humanity a new place in the universe.

Mary Robinette Kowal continues the grand sweep of alternate history begun in The Calculating Stars. The Fated Sky looks forward to 1961, when mankind is well established on the moon and looking forward to its next step: journeying to, and eventually colonizing, Mars. Of course the noted Lady Astronaut Elma York would like to go, but there’s a lot riding on whoever the International Aerospace Coalition decides to send on this historic - but potentially very dangerous - mission. Could Elma really leave behind her husband and the chance to start a family to spend several years traveling to Mars?

The gripping sequel to the Locus award winning science fiction adventure, Revenger, tells a story of obsession and betrayal as two sisters hunt for the greatest treasure in the universe. Adrana and Fura Ness have finally been reunited, but both have changed beyond recognition. Once desperate for...

Astronaut Lee Rifkin's life is about to change. NASA has done the math. The space object named Cassandra 22007 is not behaving as expected. He will lead a team on a cutting-edge ship to get a closer look. But another group wants to get there first. Who is this shadow organization that seems to be one step ahead of them? Agent Jenna Haynes works to put together the pieces that will pull the veil off those who seem to have known about Cassandra's arrival since long before NASA spotted it. What is their goal?

The sky is not the limit. From an alley in New York to an interstellar wormhole, the path to the future looks different for everyone. These cosmic short stories from some of today’s most influential Black authors reveal a universe of possibilities.

They’re here. They’ve arrived. And they’re all eyes. The Voltarian scouting party - illegal aliens extraordinaire - on a top-secret expedition led by one Jettero Heller, Royal Officer of the Fleet. His mission: rescue the planet from pollution - and make it safe for the upcoming invasion. His problem: The planet may not want to be saved - and the invasion may just be a trick.

High above the windswept plains of Kazakhstan, three astronauts on board a Russian Soyuz capsule begin their reentry. A strange shimmer in the atmosphere, a blinding flash of light, and the capsule vanishes in a blink as though it never existed. Daniel Rice is a government science investigator. Marie Kendrick is a NASA operations analyst. Together, they must track down the cause of the most bizarre event in the history of human spaceflight. They draw on scientific strengths as they plunge into the strange world of quantum physics.

A novella set in the hard-scrabble world of James S. A. Corey's NYT-bestselling Expanse series, The Vital Abyss is the secret history of the cataclysmic events that occurred on Eros station, and the revelation of what came after. . . Now a Prime Original series. HUGO AWARD WINNER FOR BEST SERIES...

As the leader of the moon's newest "dragon", Adriana has wrested control of the moon's helium-3 industry from the Mackenzie Metal Corporation and fought to earn her family's new status. Now, at the twilight of her life, Adriana finds her corporation, Corta Helio, surrounded by the many enemies she made during her meteoric rise. If the Corta family is to survive, Adriana's five children must defend their mother's empire from her many enemies - and each other.

GSI (Gettnor Space Industries) is beginning to investigate our solar system and mine the asteroids. Aircraft and automobile companies are beginning to switch over to thrusters from their more traditional products. New uses for thrusters are popping up in the healthcare and sports industries. However, at Epsilon Eridani, a race of aliens has so overpopulated their own solar system that they must move many tens of billions of their people to another system before overcrowding destroys them.

The enigmatic Greys have returned, bearing a host of stunning revelations regarding their role in Earth’s history, the Pelarans, and humanity’s place in the cosmos. Griffin, openly declaring his allegiance to both Terran Fleet Command and the world he has helped to build, agrees to accompany the Grey ship Ethereal on a high-risk recruiting operation spanning thousands of light years. Their mission: enlist the help of enough Guardian spacecraft to put an end to the out-of-control, tyrannical AI before its forces can reach Earth.