When a celebrated science fiction writer takes to space on his first trip to Mars, he's sure to be in for some heckling from the spaceship crew. But Martin Gibson, man about space, takes it all in his stride. That is, until he lands on the red planet. Once there the intrepid author causes one problem after another as he stumbles upon Mars's most carefully hidden secrets and threatens the future of an entire planet!

    Then came the announcement that the whole thing was a hoax. End of story. Case closed.Except that two agents of the most secret intelligence agency in the U.S. government were on the scene and disappeared without reporting back. Then four more follow up agents also disappeared. So the head of the agency and his two top agents went in and managed to get out with their discovery: an invasion is underway by slug-like aliens who can touch a human and completely control his or her mind. What the humans know, they know. What the slugs want, no matter what, the human will do. And most of Iowa is already under their control.Sam Cavanaugh was one of the agents who discovered the truth. Unfortunately, that was just before he was taken over by one of the aliens and began working for the invaders, with no will of his own. And he has just learned that a high official in the Treasury Department is now under control of the aliens. Since the Treasury Department includes the Secret Service, which safeguards the President of the United States, control of the entire nation is near at hand.

    Once she was somebody’s enemy. Now the former Canadian special forces warrior lives on the hellish streets of Hartford, Connecticut, in the year 2062. Racked with pain, hiding from the government she served, running with a crime lord so she can save a life or two, Jenny is a month shy of fifty, and her artificially reconstructed body has started to unravel. But she is far from forgotten. A government scientist needs the perfect subject for a high-stakes project and has Jenny in his sights. Suddenly Jenny Casey is a pawn in a furious battle, waged in the corridors of the Internet, on the streets of battered cities, and in the complex wirings of her half-man-made nervous system. And she needs to gain control of the game before a brave new future spins completely out of control.

    Now, with the entire city corrupted -from the people to the very buildings they inhabit- only the most wretched sort of existence remains. For security operative Tanner Mirabel, it is the landscape of nightmares through which he searches for a low-life postmortal killer. But the stakes are raised when his search brings him face to face with a centuries-old atrocity that history would rather forget.

    The title is a play on words, one meaning "the force which pulls" & the other being "extremely serious or important". It was serialized in Astounding Science Fiction, 4–7/53. Its 1st cloth publication was in '54. It was 1st published in paper in '58. Along with the novel itself, many editions (& most recent editions) of the book also include Whirligig World, an essay on creating the planet Mesklin that was published in the 6/53 Astounding. He published two sequels, a '70 novel called Star Light & a '73 short story called Lecture Demonstration. Mission of Gravity was nominated for a Retro Hugo Award for '54.For a profit & adventure Barlennan would sail thousands of miles across uncharted waters, into regions where gravity played strange tricks. He'd dare the perils of strange tribes & stranger creatures--even dicker with those aliens from beyond the skies, though the concept of another world was unknown to the inhabitants of the planet of Mesklin. But in spite of the incredible technology of the strangers & without regard for their enormous size, Barlennan had the notion of turning the deal to an unsuspected advantage for himself--a considerable enterprise for a being very much resembling a 15" caterpillar!

    In the twenty-third century pioneers have escaped the crowded earth for life in self-sustaining orbital colonies.  One of the colonies, Rotor, has broken away from the solar system to create its own renegade utopia around an unknown red star two light-years from Earth:  a star named Nemesis.  Now a fifteen-year-old Rotorian girl has learned of the dire threat that nemesis poses to Earth's people--but she is prevented from warning them.  Soon she will realize that Nemesis endangers Rotor as well.  And so it will be up to her alone to save both Earth and Rotor as--drawn inexorably by Nemesis, the death star--they hurtle toward certain disaster.

    Stanton and Abraham Lincoln. The problem is that the only prospective buyer is a rapacious billionaire whose plans for the simulacra could land Louis in jail. Then there's the added complication that someone--or something--like Abraham Lincoln may not want to be sold.Is an electronic Lincoln any less alive than his creators? Is a machine that cares and suffers inferior to the woman Louis loves--a borderline psychopath who does neither? With irresistible momentum, intelligence, and wit, Philip K. Dick creates an arresting techno-thriller that suggests a marriage of Bladerunner and Barbarians at the Gate.

    Did some cryptic patron race begin the job long ago, then abandon us? Or did we leap all by ourselves? That question burns, yet a greater mystery looms ahead, in the furnace of a star. Under the caverns of Mercury, Expedition Sundiver prepares for the most momentous voyage in our history – into the boiling inferno of the sun, seeking our destiny in the cosmic order of life.

    NASA, NATO, and the UN sent explorers to the asteroid's surface...and discovered marvels and mysteries to drive researchers mad.For the Stone was from space--but perhaps not our space; it came from the future-but perhaps not our future; and within the hollowed asteroid was Thistledown. The remains of a vanished civilization. A human--English, Russian, and Chinese-speaking--civilization. Seven vast chambers containing forests, lakes, rivers, hanging cities...And museums describing the Death; the catastrophic war that was about to occur; the horror and the long winter that would follow. But while scientists and politicians bickered about how to use the information to stop the Death, the Stone yielded a secret that made even Earth's survival pale into insignificance.

    Twenty astonishing stories from acclaimed author Ursula K. Le Guin that carry us to worlds of wonder and horror, desire and destiny, enchantment and doom.

    She cannot speak the Ariekei tongue, but she is an indelible part of it, having long ago been made a figure of speech, a living simile in their language.When distant political machinations deliver a new ambassador to Arieka, the fragile equilibrium between humans and aliens is violently upset. Catastrophe looms, and Avice is torn between competing loyalties—to a husband she no longer loves, to a system she no longer trusts, and to her place in a language she cannot speak yet speaks through her.

    The mysterious Captain Morgan has a starship. But if she goes with him, who will be at risk? Meet the Clan, shadowy figures of unfathomable power. Meet Huido, the lobster-like restauranteur. Meet the Trade Pact Enforcers, who have their own intentions. For events are beginning to unfold that will affect them all.Originally the first of the Trade Pact Universe Trilogy, THOUSAND is now book 4 of The Clan Chronicles. The three books of the Stratification Cycle, REAP THE WILD WIND, RIDERS OF THE STORM, and RIFT IN THE SKY tell the story of the Clan through the eyes of Sira's direct ancestor. The series will conclude with the Reunification Cycle, currently pestering the author.

    The one place that they cannot go is the bulge, the bright, hot center of the galaxy. There dwell the Aloof, who for millions of years have deflected any and all attempts to communicate with or visit them. So when Rakesh is offered an opportunity to travel within their sphere, in search of a lost race, he cannot turn it down.Roi is a member of that lost race, which is not only lost to the Amalgam, but lost to itself. In their world, there is but toil, and history and science are luxuries that they can ill afford.Rakesh's journey will take him across millennia and light years. Roi's will take her across vistas of learning and discovery just as vast.

    Leading humanity was the powerful Remillard family, but somebody--or something--known only as "Fury" wanted them out of the way.Only Rogi Remillard, the chosen tool of the most powerful alien being in the Milieu, and his nephew Marc, the greatest metapsychic yet born on Earth, knew about Fury. But even they were powerless to stop it when it began to kill off Remillards and other metapsychic operants--and all the suspects were Remillards themselves.Meanwhile, a Remillard son was born, a boy who could represent the future of all humanity. His incredible mind was more powerful even than his brother Marc's--but he was destined to be desroyed by his own DNA...unless Fury got to him first!From the Paperback edition.

    The world known as Virga is a fullerene balloon three thousand kilometers in diameter, filled with air, water, and aimlessly floating chunks of rock. The humans who live in this vast environment must build their own fusion suns and "towns" that are in the shape of enormous wood and rope wheels that are spun for gravity.Young, fit, bitter, and friendless, Hayden Griffin is a very dangerous man. He's come to the city of Rush in the nation of Slipstream with one thing in mind: to take murderous revenge for the deaths of his parents six years ago. His target is Admiral Chaison Fanning, head of the fleet of Slipstream, which conquered Hayden's nation of Aerie years ago. And the fact that Hayden's spent his adolescence living with pirates doesn't bode well for Fanning's chances...