For millennia, the Weave, an alliance of species, have fought to resist the telepathic Amplitur, who strive to unite all self-aware life-forms in their great "Purpose." The Weave is slowly losing ground, but for both sides, warfare focuses more on outthinking and outmaneuvering your foe than destruction. In fact, most regard violence as hideously barbaric, and even the thought of harming another sentient being is beyond imagining.

Welcome to Ringworld, an intermediate step between Dyson Spheres and planets. The gravitational force created by a rotation on its axis of 770 miles per second means no need for a roof. Walls 1,000 miles high at each rim will let in the sun and prevent much air from escaping. Larry Niven's novel, Ringworld, is the winner of the 1970 Hugo Award for Best Novel, the 1970 Nebula Award for Best Novel, and the 1972 Ditmars, an Australian award for Best International Science Fiction.

On September 28th, a geologist working in Death Valley finds a mysterious new cinder cone in very well-mapped area. On October 1, the government of Australia announces the discovery of an enormous granite mountain. Like the cinder cone, it wasn't there six months ago.

Something is happening to planet Earth, and the truth is too terrifying to contemplate

Best-selling science fiction superstars Larry Niven and Jerry Pournelle combine their talents with those of Steven Barnes in an extraordinary adventure of humankind’s first outpost in the farthest reaches of space. Light years from Earth, colonists land on a planet they name Avalon. It seems like a paradise—until native creatures savagely attack. It will take every bit of intelligence, courage, and military-style discipline to survive.

The starship Earthling, filled with thousands of hibernating colonists en route to a new world at Tau Ceti, is stranded beyond the solar system when the ship's three organic mental cores - disembodied human brains that control the vessel's functions - go insane. The emergency skeleton crew sees only one chance for survival: build an artificial consciousness in the Earthling's primary computer that can guide them to their destination - and hope it doesn't destroy the human race.

Neal Stephenson, "the hottest science fiction writer in America", takes science fiction to dazzling new levels. The Diamond Age is a stunning tale; set in 21st-century Shanghai, it is the story of what happens what a state-of-the-art interactive device falls into the hands of a street urchin named Nell. Her life, and the entire future of humanity, is about to be decoded and reprogrammed.

After a mysterious global event known only as “The Change”, six strangers wake up in an underground research facility where they learn that they’re part of the Extinction Trials - a scientific experiment to restart the human race. But the Extinction Trials harbors a very big secret. And so does the world outside.

In the year AD 3000, Earth is a dystopian wasteland, plundered of its natural resources by alien conquerors known as Psychlos. Fewer than 35,000 humans survive in a handful of communities scattered across the face of a post-apocalyptic Earth. From the ashes of humanity rises a young hero, Jonnie Goodboy Tyler. Setting off on an initial quest to discover a hidden evil, Jonnie unlocks the mystery of humanity’s demise and unearths a crucial weakness in their oppressors.

When Kyle Wimberly, the hands-on president of Full Cycle Solar, Inc., investigates a unit failure, he finds an alien shuttle has crashed into it. The shuttle's captain is grievously injured, his crew dead. Then, to Kyle's surprise, the captain asks for help, speaking perfect English. Kyle and colleague Alexandra Reyes carry the captain to the shuttle's medical bay for treatment by its auto-doc. This simple act of compassion launches the two down a path that will change their lives and the world forever.

They first appear as a series of dots on astronomical plates, heading from Saturn directly toward Earth. Since the ringed planet carries no life, scientists deduce the mysterious ship to be a visitor from another star. The world's frantic efforts to signal the aliens go unanswered. The first contact is hostile: the invaders blast a Soviet space station, seize the survivors, and then destroy every dam and installation on Earth with a hail of asteriods.