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Robert A. Heinlein was the most influential science fiction writer of his era, an influence so large that, as Samuel R. Delany notes, "modern critics attempting to wrestle with that influence find themselves dealing with an object rather like the sky or an ocean." He won the Hugo Award for best novel four times, a record that still stands. The Moon is a Harsh Mistress was the last of these Hugo-winning novels, and it is widely considered his finest work.

It is a tale of revolution, of the rebellion of the former Lunar penal colony against the Lunar Authority that controls it from Earth. It is the tale of the disparate people--a computer technician, a vigorous young female agitator, and an elderly academic--who become the rebel movement's leaders. And it is the story of Mike, the supercomputer whose sentience is known only to this inner circle, and who for reasons of his own is committed to the revolution's ultimate success.

The Moon is a Harsh Mistress is one of the high points of modern science fiction, a novel bursting with politics, humanity, passion, innovative technical speculation, and a firm belief in the pursuit of human freedom.

A Finalist for the 2014 Hugo Award for Best Novelette. Thirty years ago, Elma York led the expedition that paved the way to life on Mars. For years she's been longing to go back up there, to once more explore the stars. But there are few opportunities for an aging astronaut, even the famous Lady Astronaut of Mars. When her chance finally comes, it may be too late. Elma must decide whether to stay with her sickening husband in what will surely be the final years of his life, or to have her final adventure and plunge deeper into the well of space.

Read this story online for free at Tor.com.

A Dragon is dead.

Corta Helio, one of the five family corporations that rule the Moon, has fallen. Its riches are divided up among its many enemies, its survivors scattered. Eighteen months have passed .

The remaining Helio children, Lucasinho and Luna, are under the protection of the powerful Asamoahs, while Robson, still reeling from witnessing his parent's violent deaths, is now a ward--virtually a hostage-- of Mackenzie Metals. And the last appointed heir, Lucas, has vanished of the surface of the moon.

Only Lady Sun, dowager of Taiyang, suspects that Lucas Corta is not dead, and more to the point--that he is still a major player in the game. After all, Lucas always was the Schemer, and even in death, he would go to any lengths to take back everything and build a new Corta Helio, more powerful than before. But Corta Helio needs allies, and to find them, the fleeing son undertakes an audacious, impossible journey--to Earth.

In an unstable lunar environment, the shifting loyalties and political machinations of each family reach the zenith of their most fertile plots as outright war erupts.

Luna: Wolf Moon continues Ian McDonald's saga of the Five Dragons.

From Emma Newman, the award-nominated author of Between Two Thorns, comes a novel of how one secret withheld to protect humanity's future might be its undoing...

Renata Ghali believed in Lee Suh-Mi's vision of a world far beyond Earth, calling to humanity. A planet promising to reveal the truth about our place in the cosmos, untainted by overpopulation, pollution, and war. Ren believed in that vision enough to give up everything to follow Suh-Mi into the unknown.

More than twenty-two years have passed since Ren and the rest of the faithful braved the starry abyss and established a colony at the base of an enigmatic alien structure where Suh-Mi has since resided, alone. All that time, Ren has worked hard as the colony's 3-D printer engineer, creating the tools necessary for human survival in an alien environment, and harboring a devastating secret.

Ren continues to perpetuate the lie forming the foundation of the colony for the good of her fellow colonists, despite the personal cost. Then a stranger appears, far too young to have been part of the first planetfall, a man who bears a remarkable resemblance to Suh-Mi.

The truth Ren has concealed since planetfall can no longer be hidden. And its revelation might tear the colony apart...

The Moon wants to kill you. Whether it's being unable to pay your per diem for your allotted food, water, and air, or you just get caught up in a fight between the Moon's ruling corporations, the Five Dragons. You must fight for every inch you want to gain in the Moon's near feudal society. And that is just what Adriana Corta did.

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.

Amelia dreams of Mars. The Mars of the movies and the imagination, an endless bastion of opportunities for a colonist with some guts. But she's trapped in Mexico City, enduring the drudgery of an unkind metropolis, working as a rent-a-friend, selling her blood to old folks with money who hope to rejuvenate themselves with it, enacting a fractured love story.

And yet there's Mars, at the edge of the silver screen, of life.

This novella can also be found in the anthology The Year's Best Science Fiction: Thirty-Fifth Annual Collection (2018), edited by Gardner Dozois.

It is thirty years from now, and we have colonized the moon.

American Fred Fredericks is making his first trip, his purpose to install a communications system for China's Lunar Science Foundation. But hours after his arrival he witnesses a murder and is forced into hiding.

It is also the first visit for celebrity travel reporter Ta Shu. He has contacts and influence, but he too will find that the moon can be a perilous place for any traveler.

Finally, there is Chan Qi. She is the daughter of the Minister of Finance, and without doubt a person of interest to those in power. She is on the moon for reasons of her own, but when she attempts to return to China, in secret, the events that unfold will change everything - on the moon, and on Earth.

Hugo-nominated Novella

This is the short novel that started the entire Retrieval Artist series, introducing Miles Flint and his unique profession to the world -- creating an entire universe, and Flint himself became what io9 calls "one of the top ten science fiction detectives ever."

Part CSI, part Blade Runner, and part hard-boiled gumshoe, the retrieval artist of the series title, one Miles Flint, would be as at home on a foggy San Francisco street in the 1940s as he is in the domed lunar colony of Armstrong City.

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. And when she ventures out into the bleak Mars landscape alone one night, a simple accident leads her to the edge of death until she is saved by an angel—an angel with too many arms and legs, a head that looks like a potato gone bad, and a message for the newly arrived human inhabitants of Mars:

We were here first.

Jazz Bashara is a criminal.

Well, sort of. Life on Artemis, the first and only city on the moon, is tough if you're not a rich tourist or an eccentric billionaire. So smuggling in the occasional harmless bit of contraband barely counts, right? Not when you've got debts to pay and your job as a porter barely covers the rent.

Everything changes when Jazz sees the chance to commit the perfect crime, with a reward too lucrative to turn down. But pulling off the impossible is just the start of her problems, as she learns that she's stepped square into a conspiracy for control of Artemis itself -- and that now, her only chance at survival lies in a gambit even riskier than the first.

A stark and inhospitable place, its landscape poses a challenge to survival; yet its strange, silent beauty has long fascinated scientists and adventurers. Now Antarctica faces an uncertain future. The international treaty that protects the continent is about to dissolve, clearing the way for Antarctica's resources and eerie beauty to be plundered. As politicians and corporations move to determine its fate from half a world away, radical environmentalists carry out a covert campaign of sabotage to reclaim the land. The winner of this critical battle will determine the future for this last great wilderness....

Finalist in Asimov's 30th Annual Readers' Award Poll; selected for three 2015 Year's Best anthologies

This novella is set in the Retrieval Artist universe, as part of the background for the Anniversary Day saga.

Detective Noelle DeRicci is called in when the body of a woman is discovered in a waste crate in Armstrong, the largest dome on the Moon -- found by the owner just before the crate's contents were sent to the Growing Pits to be made into compost. The coroner she has summoned identifies the body as the nanny to the child of a local crime boss named Luc Deshin, who subsequently tells DeRicci he had fired the victim that day because she was not affectionate enough with his infant son.

Originally published in Asimov's Science Fiction, March 2015. The story can also be found in the anthologies The Year's Best Science Fiction: Thirty-Third Annual Collection (2016), edited by Gardner Dozois, and The Year's Best Science Fiction & Fantasy Novellas 2016, edited by Paula Guran.

Read this story online for free at Asimov's Science Fiction.

Matt Cairns is a 21st-century outlaw Programmer who takes on the shady jobs no one else will touch. Against his better judgment, he accepts an assignment to crack the Marshall Titov, a top-secret orbital station operated by the European Space Agency. But what Matt will discover there will propel him on an extraordinary and quite unexpected journey.

Gregor Cairns is an exobiology student and descendant of one of Terra Nova's first families. Hopelessly infatuated with a lovely young trader's daughter, he is unaware that his research partner, Elizabeth, has fallen in love with him. Together, Gregor and Elizabeth confront the great work his family began three centuries earlier-to rediscover the secret of interstellar travel.

Ranging from a gritty near-future Earth to a distant alien world, Cosmonaut Keep is contemporary science fiction at its highest level, a visionary epic filled with daring individuals seeking a place for themselves in a vast, complex, and enigmatic universe.

Melanie Stryder refuses to fade away. The earth has been invaded by a species that takes over the minds of their human hosts while leaving their bodies intact, and most of humanity has succumbed.

Wanderer, the invading 'soul' who has been given Melanie's body, knew about the challenges of living inside a human: the overwhelming emotions, the too-vivid memories. But there was one difficulty Wanderer didn't expect: the former tenant of her body refusing to relinquish possession of her mind.

Melanie fills Wanderer's thoughts with visions of the man Melanie loves - Jared, a human who still lives in hiding. Unable to separate herself from her body's desires, Wanderer yearns for a man she's never met. As outside forces make Wanderer and Melanie unwilling allies, they set off to search for the man they both love.

Written by a highly regarded expert on space travel and exploration, Allen Steele's Arkwright features the precision of hard science fiction with a compelling cast of characters. In the vein of classic authors such as Robert Heinlein, Isaac Asimov, and Arthur C. Clarke, Nathan Arkwright is a seminal author of the twentieth century. At the end of his life he becomes reclusive and cantankerous, refusing to appear before or interact with his legion of fans. Little did anyone know, Nathan was putting into motion his true, timeless legacy.

Convinced that humanity cannot survive on Earth, his Arkwright Foundation dedicates itself to creating a colony on an Earth-like planet several light years distant. Fueled by Nathan's legacy, generations of Arkwrights are drawn together, and pulled apart, by the enormity of the task and weight of their name.

This is classic, epic science fiction and engaging character-driven storytelling, which will appeal to devotees of the genre as well as fans of current major motion pictures such as Gravity and Interstellar.

The aliens are here. And they want to help. The extraordinary new project from one of the country's most acclaimed and consistently brilliant SF novelists of the last 30 years.

The Jackaroo have given humanity 15 worlds and the means to reach them. They're a chance to start over, but they're also littered with ruins and artifacts left by the Jackaroo's previous clients.

Miracles that could reverse the damage caused by war, climate change, and rising sea levels. Nightmares that could for ever alter humanity - or even destroy it.

Chloe Millar works in London, mapping changes caused by imported scraps of alien technology. When she stumbles across a pair of orphaned kids possessed by an ancient ghost, she must decide whether to help them or to hand them over to the authorities. Authorities who believe that their visions point towards a new kind of danger.

And on one of the Jackaroo's gift-worlds, the murder of a man who has just arrived from Earth leads policeman Vic Gayle to a war between rival gangs over possession of a remote excavation site.

Something is coming through. Something linked to the visions of Chloe's orphans, and Vic Gayle's murder investigation. Something that will challenge the limits of the Jackaroo's benevolence...