The invention of the Hotline -- a constant stream of data from a star in the constellation Ophiuchus -- facilitates survival and enables the development of amazing new technologies. Then, after 400 years, humanity's unknown helpers send a bill for their services...and suddenly everything is threatened once again.The Ophiuchi Hotline was John Varley's first novel, and it received nominations for both the Hugo and Nebula awards; he later won both for his book Persistence of Vision.

    The Edenists are genetically engineered space-dwellers with telepathic affinity for their biotechnological homes and ships. The Adamists, effectively the Luddites of the future, are willing to pioneer new worlds, much as their ancestors did hundreds of years ago. The two groups, peopled by fascinating characters, clash on a primitive world called Lalonde, setting in motion a tale of adventure unparalleled in this universe.

    What is it? Who came there to build it?The secret lies, perhaps, in the chaotic decades of the Martian Revolution, in the lost memories of those who have lived for centuries.

    The World Government calls upon him for aid in protecting an alien diplomat from a powerful and hostile member of his own species. Knowing both the importance of the task and his inability to handle it on his own, Singer goes to confront his greatest conquest with a strange bargain. A shape-shifting alien, the last of his species, sits in a special cage at an institute dedicated to the study of extraterrestrial beings. Most frequently he projects the aspect of a one-eyed catlike creature, but he can appear as almost anything.One of Singer’s secrets, and his greatest guilt, is his suspicion that the creature is intelligent. He confronts him and offers his own life for Cat’s cooperation in saving the alien. Cat accepts, and later, their mission fulfilled, demands a refinement on the original bargain. Rather than a simple death he wants a return bout—a chase with Singer as the hunted rather than the hunter.The gods, powers and monsters of Navajo legend provide the backdrop for the working out of Singer’s fate—for the chase is as much for his soul as for his body. As he uses matter transmitters to flit from Paris to London to the Middle East to the American Southwest, he must search back into his own early life as well as the root beliefs of his vanished people and come to terms with a world that has adopted him, made use of his skills, and left him feeling that he has no place to call his own.

    With credits running low, and prospects limited, he has just one hope...to enlist for two years with a deep space commercial freighter. Ishmael, who only rarely visited the Neris Orbital, and has never been off-planet alone before, finds himself part of an eclectic crew sailing a deep space leviathan between the stars. Join the crew of the SC Lois McKendrick, a Manchester built clipper as she sets solar sails in search of profit for her company and a crew each entitled to a share equal to their rating.

    Her demoralized crew blames her for their ship's humiliating posting to an out-of-the-way picket station. The aborigines of the system's only habitable planet are smoking homicide-inducing hallucinogens. Parliament isn't sure it wants to keep the place; the major local industry is smuggling, the merchant cartels want her head; the star-conquering, so-called "Republic" of Haven is Up to Something; and Honor Harrington has a single, over-age light cruiser with an armament that doesn't work to police the entire star system.But the people out to get her have made one mistake.They've made her mad!

    Two archaeologists glean forbidden knowledge from the ruins of a dead world. Robot servants of ruling insectoid Klikiss guard the Klikiss Torch, which has the power to create suns. The reasons for the fall of the Klikiss empire may return.

    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.

    A coming of age story about a teenage girl on the frontiers of space.Pella's father, Clement, has just been swept out of elective office in New York and has set his sights on the next political frontier: joining the first human settlers on the Planet of the Archbuilders. Once the domain of a super-evolved alien species who used "viruses" to alter their ecosystem before abandoning it, the planet is now a hothouse landscape of ruined towers and refuse inhabited only by skittery, mouselike "household deer" and a few remaining Archbuilders.Clement's mission, to forge a community that embraces the Archbuilders, puts him on a collision course with Ephram Nugent, a xenophobic homesteader.

    They are the X-wing fighters. And as the struggle rages across the vastness of space, the fearless men and women who pilot them risk both their lives and their machines. Their mission: to defend the Rebel Alliance against a still-powerful and battle-hardened Imperial foe in a last-ditch effort to control the stars!Its very name strikes fear into enemy hearts. So when Rebel hero Wedge Antilles rebuilds the legendary Rogue Squadron, he seeks out only the best -- the most skilled, the most daring X-wing pilots. Through arduous training and dangerous missions, he weeds out the weak from the strong, assembling a group of hard-bitten warriors willing to fight, ready to die. Antilles knows the grim truth: that even with the best X-wing jockeys in the galaxy, many will not survive their near-suicidal missions. But when Rogue Squadron is ordered to assist in the assault on the heavily fortified Imperial stronghold of Black Moon, even the bravest must wonder if any at all will survive. . . .

    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.

    He is employed by Freeground station as a port traffic controller, a job he took after completing a tour in the military. His only real joy in life is his participation in true-to-life military simulations with a cadre of friends who come together regularly to defeat challenges made to test the brightest military cadets and officers alike. These restricted scenarios stand as an addictive preoccupation that is so enticing that they ignore the potential repercussions of breaking in to participate. When someone betrays their identities to the Freeground Fleet Admiralty, Jonas and his friends are faced with a far greater challenge: to venture out into the more populated regions of the galaxy to acquire technology and knowledge. They are tasked with laying the groundwork for the Freeground Nation in their efforts to reconnect with the rest of humanity, and to secure the armaments they might need to defend themselves from encroaching enemies. Spinward Fringe Broadcast 0: Origins is a collected trilogy that chronicles the early adventures of an ambitious crew. Their leader, Jonas Valent, has the least to lose and everything to gain as he tells the tale of his first tour as Captain of a ship tasked with making allies and discovering new technologies for the good of his people. This simple mission becomes more complicated as the crew ventures further into the settled fringes of the galaxy. This trilogy spawned the best selling Spinward Fringe eBook series. This is where it all began, when one man was challenged to aspire for more than an idle life. A Space Opera Adventure enjoyed across the globe by all ages.

    Only the best and brightest--the strongest and the most courageous--ever manage to become Space Cadets, at the Space Academy. They are in training to be come part of the elite guard of the solar system, accepting missions others fear, taking risks no others dare, and upholding the peace of the solar system for the benefit of all.But before Matt Dodson can earn his rightful place in the ranks, his mettle is to be tested in the most severe and extraordinary ways--ways that change him forever, from the midwestern American boy into a man of the Solar Patrol.

    Lee and his crew travel to a distant planetary system with a habitable moon (named Coyote) with the dream of starting a colony free from governmental and social oppression.The trip lasts 226 years, but while everyone is in biostasis, one of the crew members is accidentally awakened. With his cell permanently deactivated by the ship's AI, communications officer Leslie Gillis is doomed to a solitary life (and death) aboard the starship. When the rest of the crew is eventually reawakened as the ship reaches its destination, what they find is extraordinary. Once the small colony is established on Coyote, they realize just how different their new world is from Earth. Exploration begins, and although a few colonists are killed by predators, the colony survives and even begins to thrive that is, until a strange comet appears in the sky.