Alternate History Space

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.

Our central worldline monitors many of the adjacent worldlines. Are we behind or ahead of other worldlines technologically? Could people cross over and be a threat? Do they have any technology we could use to stay dominant? Of all the alternate Earth timelines, only this one had the North American natives survive and flourish. This, despite enduring a vastly superior Alien invasion centuries previously. Two agents sent from the central worldline to investigate this outlier Earth have disappeared. An agent sent by the Central Worldline, despite his apparent youth, and disregard for protocol,...

In the not-too-distant future, a 21-member crew launches from Earth. Their mission: to establish a temporary colony on Mars. Little do they know that colony will become permanent–and the last stand of the human race. Because, without warning, every single person left on Earth simply...vanishes. Now, a thousand years later, the resources needed to sustain life are running out, and the very existence of the Mars colony is threatened. Humankind has only one option–to return to its home planet.

From the bestselling author of the Noah Hunter series, and Grim Measures, comes a novel that spans centuries as a farmer from the 1700s and an FBI agent travel through time to stop a black hole from destroying the world. "Darling has crafted a truly fantastic time-travel novel. Riveting, page-turning, and mind-bending from end to beginning..." - James Downe, author of Sisters of Jade. FBI Special Agent Bradley Holman has been hand-picked to investigate the mother of all cover-ups: a three-hundred-year-old meteorite fragment, sealed away in Fort Knox, was stolen from under the government’s...

Late in the 26th century, the human race has advanced enough to accidentally trigger the Inhibitors---alien-killing machines designed to detect intelligent life and destroy it. The only hope for humanity lies in the recovery of a secret cache of doomsday weapons---and a renegade named Clavain who is determined to find them. But other factions want the weapons for their own purposes---and the weapons themselves have another agenda altogether.

New York Times best-selling author Eric Flint has received glowing critical praise for his Ring of Fire alternate history series. In this first installment, a West Virginia town is transported from the year 2000 to 1631 Germany at the height of the Thirty Years’ War. Thrust into conflict, the town residents must also contend with moral issues such as who should be considered a citizen.

Author of the New York Times best seller The Beginning of Infinity, David Deutsch, explores the four most fundamental strands of human knowledge: quantum physics, and the theories of knowledge, computation, and evolution - and their unexpected connections. Taken together, these four strands reveal a deeply integrated, rational, and optimistic worldview. It describes a unified fabric of reality that is objective and comprehensible, in which human action and thought are central.

The Narthani, a militant realm who believe their manifest destiny is to rule the entire planet, Anyar, plan to absorb Caedellium into their empire. Yozef Kolsko (a.k.a. Joe Colsco) works to find ways to increase the chances of resistance to the Narthani's planned conquest. The enemy is coming. The odds seem overwhelming, and it will take all Yozef can do, the courage of his new people, and luck, to survive.

On a cold spring night in 1952, a huge meteorite fell to earth and obliterated much of the East Coast of the US, including Washington, DC. The ensuing climate cataclysm will soon render the Earth inhospitable for humanity, as the last such meteorite did for the dinosaurs. This looming threat calls for a radically accelerated effort to colonize space and requires a much-larger share of humanity to take part in the process. Elma York’s drive to become the first lady astronaut is so strong that even the most dearly held conventions of society may not stand a chance against her.

New York Times best-selling author Eric Flint’s 1632 presented listeners with a fascinating alternate history of the Thirty Years’ War, through the eyes of a West Virginia community tossed back in time to 17th-century Germany. Here, Flint teams up with acclaimed science fiction author David Weber to continue his epic tale. In 1633, the West Virginians attempt to use their modern-day knowledge to build a resistance against the forces of France, Spain, and England.

From the #1 bestselling author of the Noah Hunter series, and Grim Measures, comes the sequel to Edge of Time. Where a former FBI agent and time traveler Brad Sheppard is once again thrust into the quantum realm so there will be a future worth returning to. Former FBI agent and time traveler Brad Sheppard witnesses an impossible murder in the Late Middle Ages, but upon returning to the present, his family has vanished. History has been rewritten. With nothing left to lose, Brad tears through the quantum realm and the centuries, desperate to restore his wife and daughter. But he must do so ...

The Balance of Wonder and Terror Learn the truth of the secret war in space with both the Soviets and dark technomancers bent on world domination in Gods in Darkness. Thrill to incredible truths buried in the sands of ages or in our own Area 51 in The Dig. Ride along with some crazed truckers dealing with Lovecraftian horrors in At the Highways of Madness. Know the stark terror of reading a forbidden book of the damned when the stars are not right. Love knows no bounds through time and space--especially for one of Lovecraft's Elder Things in The Queen in Shadow. And finally, go beyond the ...

This book looks at our young race suddenly moving into space. Empires had existed before us but we came from the fringe of the galaxy and older races were near the core. Some races progressed slowly even though they were much older due to their bureaucracy. Others appeared and disappeared in the blink of an eye. We were currently leaving a mark on our galactic arm. We had overcome some of the local competition and are probing deeper toward our galaxy Core. We are searching for the creators of the molecular circuitry that can improve electronics or form intelligent machines. We are also, ...

They tried to kill or capture Yozef Kolsko. The possibility that Caedellium could have peaceful years going forward is refuted. The key is bringing down Narthon. But how? Caedellium is too small, despite innovations by Yozef Kolsko (Joseph Colsco) and Mark Kaldwel (Caldwell), humans cast away on the planet Anyar. Allies are needed. Campaigns to be planned. Risks to be taken. For Yozef Kolsko, it means assuming roles he never imagined or believed himself capable. Anyar will never be the same.

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 year is 1961. The Cold War is in full swing and the space race is on. Russia aims to send humanity to space. But what if space comes to humanity instead? Yuri Gagarin’s epic flight into space is disrupted when an alien Mothership jumps into orbit, causing a cosmic car crash that defies all odds. Everything changes. The US and USSR must quickly put aside their differences. In exchange for the Earth’s help in the rebuilding of their Mothership, the mysterious aliens, the Vulbathi, offer promises of technology beyond humanity's wildest dreams.

Since Anabelle’s mother left for Earth to care for her own ailing mother, her days in New Galveston have been spent at school and her nights at her laconic father’s diner with Watson, the family Kitchen Engine and dishwasher, as her only companion. When the Silence came, and communication and shipments from Earth to its colonies on Mars stopped, life seemed stuck in foreboding stasis until the night Silas Mundt and his gang attacked.

Far from the fury of The Great War, the citizens of the Liberty Federation live in peace and prosperity. The Dawn Empire’s light is fading. Admiral Ikson Koto has one chance to renew the flame before it is extinguished forever. To save the Empire from a slow death, he must destroy the Federation’s fleet in one fell swoop. His plan calls for a brutality that has never been seen before. For Lieutenant Shannon Reeve, the horrors of battle still burn strong in her mind. Her posting to a fighter squadron in the paradise of the Federation’s premier base, Azure Anchorage, should be a welcome...

Beginning the Star Force Phase 2 timeline, the Mak'to'ran serial details the defeated V'kit'no'sat fleet commander's days following the attack on Earth and the fallout within the Dinosaur empire that results from it. For as bad as the treason regarding the Humans and the bastardized Hadarak is, and the implications that one of the two founding V'kit'no'sat races are behind it, a much larger rift within the empire is being exposed that has the potential to do what neither the Zak'de'ron culling nor the Rit'ko'sor rebellion accomplished. A full Dinosaur civil war.

It’s the 1980’s, the Cavill Family and their multi-national megacorporation have established human settlements on both the Moon and Mars. Their work in space has now significantly overshadowed their still substantial mining, energy, communications, defense and manufacturing operations still on Earth. The Cavills are also the leaders in the development of affordable clean energy on Earth and in space. But while the Cavills have continued to oppose the development of nuclear weapons because they had been the cause of humanity’s demise in Harold Cavill’s original timeline, multiple ...