When NASA's Sentinel I satellite detects an impossible reflection and a mysterious signal from Shackleton Crater, the world is thrown into chaos. The discovery points to one chilling truth: an alien artifact lies hidden beneath the lunar surface—and it wants to be found. As China scrambles to exploit the revelation, a new moon race ignites, pushing humanity to the brink.

The only hope for mankind is Project Orpheus, an unprecedented initiative on the part of the allied governments to enable human life to continue on Kepler-442b, a planet over a thousand light years from Earth. Two spaceships are under construction, which will leave for that remote solar system with a specialized crew to terraform the planet and make it habitable. Steven Rhodes, the director of Project Orpheus, will travel in the first of them. His daughter Emily, a specialist technician in Artificial Intelligence, will follow on the second ship, five years later.

As a Marine, Henry Morgan would have said it was more likely he’d die from enemy fire than from being struck by a flying lawnmower while at a baseball game. But it was the lawnmower that ended up taking him out. A century later, Henry wakes up as a reconstituted intelligence, and is promptly drafted to be the governing AI for America’s first military starship. After decades of model-trained AIs wreaking havoc across the globe, humanity is ready to try something a little more…human.

A vast battlecruiser moves silently through space—a ghost ship, abandoned decades ago. There could be treasure inside… or monsters. I’m the sucker who’s going to find out. Once I was a hero. An elite soldier fighting for the Paragon military. Now the Paragon’s wars are won and I’m nobody—a gun for hire, working illegal salvage operations. There’s money to be made out in the dark. Ships filled with valuable tech, left to drift between the stars. A smart salvage crew can get rich. Or at least die trying.

Sera leads a simple life. A little smuggling, some drinking contests, and captaining her star freighter, Sabrina. But when she picks up a mysterious shipping container on Coburn Station, things begin to go wrong. She finds herself at odds with The Mark, a dangerous pirate organization that wants the cargo on her ship. Inside the container she not only finds a woman, but a secret thought lost millennia ago.

Get ready to experience two more origin stories in the Backyard Starship universe.

A wicked snowstorm had blown in from the north and the roads were a mess. Recently split from his one-time girlfriend, there was now nothing holding Cameron Decker here in the little backwater mountain town of Larksburg Stand. Time to get back to college, back to Stanford. Seeing a guy knee-deep in slush at the side of the road, he pulled to the curb and waved him over. The guy smacked his head getting in—knocked his watch cap askew. Only then did Cameron notice—noticed that the individual couldn’t possibly be human.

The year is 2322. Humanity has expanded into the stars, inhabiting over 100 worlds across a third of the galaxy. Though thriving as never before, they have discovered neither alien life nor the key to utopia. Earth struggles to retain authority over far-flung planets and free-wheeling corporations, while an uneasy armistice with a breakaway federation hangs by a thread as the former rebels rise in wealth and power.

After a fateful expedition to Antarctica, Alexander Hawkes finds himself catapulted across the stars into a galaxy in chaos. The Emperor is assassinated. The Eternum Empire, already fading, has collapsed. But he has a starship now. And friends. Alongside a crew of unlikely allies—Ban Tarro, an honorable Barundi soldier; Diliseth, a genetically-engineered Nacendo handmaiden; and Four, a sentient AI—Alexander witnesses the brutal aftermath of imperial collapse on the planet Twilight. Driven by an innate sense of justice, Alexander proposes a radical solution.

This audiobook box set collects the first three installments of John Hindmarsh's epic Jack Foster Space Opera series: Violent Graduation, Rescue the Princess, and Jack's Planet. Join Jack and his team—ever increasing—in their epic adventures.

They say you can’t run from your past, and now she’s reached the other side of the galaxy, Sparks wonders if they’re right … Living on a distant planet with a transient population for the past year, ducking in and out of spaceport dive bars, mixing with pirates, bounty hunters, and criminals, she’s become just another being in the crowd.

Will Vandolah is stationed on the gigantic research outpost, GAIA 3, on Saturn’s moon, Titan. However, its living ecosphere is dying, and oxygen deprivation slowly throws the crew into delirium. As the crew races against time to solve the problem, Will discovers a new and far worse threat. An enormous comet hurtling through space passes close to Saturn and triggers a chain of events that detonates the rings into a glowing inferno, blasting deadly radiation into space.

When Thomas heard the cries for help, he didn’t hesitate to do the right thing. It was his chance for redemption. Until everything went wrong. The cave should have been deserted. The perfect place to hide. Instead, it’s crawling with soldiers and engineers working to unearth the impossible: Excalibur.

Robots are building a colossal telescope on the far side of the moon, with just two people supervising its completion. After a minor incident, these scientists become aware of an obstacle in the lunar soil. It's located outside the area reserved for the hypertelescope and is therefore none of their business. But their curiosity gets the better of them. The artifact seems to have properties that completely defy physics as they know it.

Captain Cirilo Webster is a loyal officer of the Santiago Corporation, the multistellar megacorporation that controlls all travel between the Seventy-Seven human colonies. Finally given command of his first interstellar freighter, he is determined to do well by both his crew and his employers—but nothing is ever that simple. His crew is used to Captains passing through on their way to better ships. The Company’s policies have made more enemies than he can count. Their mission is unusual and the client might be lying to him. And if all of that wasn’t enough?