The Collapsing Empire


John Scalzi - 2017
    Humanity flows away from Earth, into space, and in time forgets our home world and creates a new empire, the Interdependency, whose ethos requires that no one human outpost can survive without the others. It’s a hedge against interstellar war -- and a system of control for the rulers of the empire.The Flow is eternal -- but it is not static. Just as a river changes course, The Flow changes as well, cutting off worlds from the rest of humanity. When it’s discovered that The Flow is moving, possibly cutting off all human worlds from faster than light travel forever, three individuals -- a scientist, a starship captain and the Empress of the Interdependency -- are in a race against time to discover what, if anything, can be salvaged from an interstellar empire on the brink of collapse.

The Pride of Chanur


C.J. Cherryh - 1981
    Naked-hided, blunt toothed and blunt-fingered, Tully was the sole surviving member of his company -- a communicative, spacefaring species hitherto unknown -- and he was a prisoner of his discoverer/ captors the sadistic, treacherous kif, until his escape onto the hani ship The Pride of Chanur. Little did he know when he threw himself upon the mercy of The Pride and her crew that he put the entire hani species in jeopardy and imperiled the peace of the Compact itself. For the information this fugitive held could be the ruin or glory of any of the species at Meetpoint Station. Cover art by Michael Whelan

Hyperion


Dan Simmons - 1989
    There are those who worship it. There are those who fear it. And there are those who have vowed to destroy it. In the Valley of the Time Tombs, where huge, brooding structures move backward through time, the Shrike waits for them all. On the eve of Armageddon, with the entire galaxy at war, seven pilgrims set forth on a final voyage to Hyperion seeking the answers to the unsolved riddles of their lives. Each carries a desperate hope—and a terrible secret. And one may hold the fate of humanity in his hands.

The Ship Who Sang


Anne McCaffrey - 1969
    But first she had to choose a human partner—male or female—to share her exhilarating escapades in space!Her life was to be rich and rewarding . . . resplendent with daring adventures and endless excitement, beyond the wildest dreams of mere mortals.Gifted with the voice of an angel and being virtually indestructible, Helva XH-834 anticipated a sublime immortality.Then one day she fell in love!

Singularity Sky


Charles Stross - 2003
    It pushed Earth through the greatest technological evolution ever known, while warning that time travel is forbidden, and transgressors will be eliminated.Distant descendants of this ultra high-tech Earth live in parochial simplicity on the far-flung worlds of the New Republic. Their way of life is threatened by the arrival of an alien information plague known as the Festival. As forbidden technologies are literally dropped from the sky, suppressed political factions descend into revolutionary turmoil.A battle fleet is sent from Earth to destroy the Festival, but Spaceship engineer Martin Springfield and U.N. diplomat Rachel Mansour have been assigned rather different tasks. Their orders are to diffuse the crisis or to sabotage the New Republic's war-fleet, whatever the cost, before the Eschaton takes hostile action on a galactic scale.

The Forever War


Joe Haldeman - 1974
    A reluctant conscript drafted into an elite Military unit, Private William Mandella has been propelled through space and time to fight in the distant thousand-year conflict; to perform his duties without rancor and even rise up through military ranks. Pvt. Mandella is willing to do whatever it takes to survive the ordeal and return home. But "home" may be even more terrifying than battle, because, thanks to the time dilation caused by space travel, Mandella is aging months while the Earth he left behind is aging centuries.

A Princess of Mars


Edgar Rice Burroughs - 1912
    It's the beginning of an incredible odyssey in which John Carter, a gentleman from Virginia and a Civil War veteran, unexpectedly finds himself on to the red planet, scene of continuing combat among rival tribes. Captured by a band of six-limbed, green-skinned savage giants called Tharks, Carter soon is accorded all the honor of a chieftain after it's discovered that his muscles, accustomed to Earth's greater gravity, now give him a decided advantage in strength. And when his captors take as prisoner Dejah Thoris, the lovely human-looking princess of the city of Helium, Carter must call upon every ounce of strength, courage, and ingenuity to rescue her-before Dejah becomes the slave of the depraved Thark leader, Tal Hajus!Excerpt:Her oval face was beautiful in the extreme, her every feature finely chisled and exquisite, her eyes large and lustrous and her head surmounted by a mass of coal black, waving hair, caught loosely into a strange yet becoming coiffure. Similar in face and figure to women of Earth, she was nevertheless a true Martian--and prisoner of the fierce green giants who held me captive, as well!

Gateway


Frederik Pohl - 1977
    and on reaches of unimaginable horror. When prospector Robinette 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, Rob Broadhead has to face what happened to him and what he has become... 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!

Dune


Frank Herbert - 1965
    Coveted across the known universe, melange is a prize worth killing for...When House Atreides is betrayed, the destruction of Paul’s family will set the boy on a journey toward a destiny greater than he could ever have imagined. And as he evolves into the mysterious man known as Muad’Dib, he will bring to fruition humankind’s most ancient and unattainable dream.***Original, first edition from 1965 can be found here.

Midnight at the Well of Souls


Jack L. Chalker - 1977
    A hidden stargate hurls him and his passengers to the Well World, the master control planet for the cosmos created by the now-gone godlike race who designed the universe. Now someone wants to find the Well of Souls to seize control of all the cosmos--and it's up to Nathan to stop them.

Consider Phlebas


Iain M. Banks - 1987
    Billions had died, billions more were doomed. Moons, planets, the very stars themselves, faced destruction, cold-blooded, brutal, and worse, random. The Idirans fought for their Faith; the Culture for its moral right to exist. Principles were at stake. There could be no surrender.Within the cosmic conflict, an individual crusade. Deep within a fabled labyrinth on a barren world, a Planet of the Dead proscribed to mortals, lay a fugitive Mind. Both the Culture and the Idirans sought it. It was the fate of Horza, the Changer, and his motley crew of unpredictable mercenaries, human and machine, actually to find it, and with it their own destruction.

Tau Zero


Poul Anderson - 1970
    But, because the ship will accelerate to close to the speed of light, for those on board subjective time will slow and the journey will be of only a few years' duration.Then a buffeting by an interstellar dustcloud changes everything. The ship's deceleration system is damaged irreperably and soon she is gaining velocity. When she attains light-speed, tau zero itself, the disparity between ship-time and external time becomes almost impossibly great. Eons and galaxies hurtle by, and the crew of the Leonora Christine speeds into the unknown.

The Engines of God


Jack McDevitt - 1994
    Now, as faster-than-light drive opens the stars to exploration, humans are finding other relics of the race they call the Monument-Makers - each different, and each heartbreakingly beautiful. But except for a set of footprints on Jupiter's moon Iapetus, there is no trace of the enigmatic race that has left them behind. Then a team of scientists working on a dead world discover an ominous new image of the Monument-Makers. Somehow it all fits with other lost civilizations, and possibly with Earth's own future. And distant past. But Earth itself is on the brink of ecological disaster - there is no time to search for answers. Even to a question that may hold the key to survival for the entire human race...

Pandora's Star


Peter F. Hamilton - 2004
    The Intersolar Commonwealth, a sphere of stars some four hundred light-years in diameter, contains more than six hundred worlds, interconnected by a web of transport "tunnels" known as wormholes. At the farthest edge of the Commonwealth, astronomer Dudley Bose observes the impossible: Over one thousand light-years away, a star... vanishes. It does not go supernova. It does not collapse into a black hole. It simply disappears. Since the location is too distant to reach by wormhole, a faster-than-light starship, the Second Chance, is dispatched to learn what has occurred and whether it represents a threat. In command is Wilson Kime, a five-time rejuvenated ex-NASA pilot whose glory days are centuries behind him.Opposed to the mission are the Guardians of Selfhood, a cult that believes the human race is being manipulated by an alien entity they call the Starflyer. Bradley Johansson, leader of the Guardians, warns of sabotage, fearing the Starflyer means to use the starship's mission for its own ends.Pursued by a Commonwealth special agent convinced the Guardians are crazy but dangerous, Johansson flees. But the danger is not averted. Aboard the Second Chance, Kime wonders if his crew has been infiltrated. Soon enough, he will have other worries. A thousand light-years away, something truly incredible is waiting: a deadly discovery whose unleashing will threaten to destroy the Commonwealth... and humanity itself. Could it be that Johansson was right?

The Many-Coloured Land


Julian May - 1981
    Each sought his own brand of happiness. But none could have guessed what awaited them. Not even in a million years....