Winner of both the Hugo and Nebula Awards for Best Novel, Ringworld remains a favorite among science fiction readers.

The artifact is a vast circular ribbon of matter, some 180 million miles across, with a sun at its center. Pierson's puppeteers—strange, three-legged, two-headed aliens—discovered this "Ringworld" in a hitherto unexplored part of the galaxy. Curious about the immense structure, but frightened by the prospect of

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From the 31st century, scientist Hanville Svetz travels back in time to collect life specimens from Mars and Earth before they become extinct. A novella and five stories by the author of Destiny's Road.

Sequel to; The Mote in God's Eye.

The first interstellar starship, John Glenn, fled a Solar System populated by rogue AIs and machine/human hybrids, threatened by too much nanotechnology, and rife with political dangers. The John Glenn's crew intended to terraform the nearly pristine planet Ymir, in hopes of creating a utopian society that would limit intelligent technology. But by some miscalculation they have landed in another solar system and must shape the gas giant planet Harlequin's...

"Avalon was thriving. The cold sleep colonists from Earth had settled on a verdant, livable world. The fast and cunning predators humans named "grendels" were under control, and the mainland outposts well established. Avalon's new mainland hydroelectric power station was nearly complete, and when on-line would compensate for the nuclear power systems lost in the Grendel Wars. Humans would have power, and with power came the ability to make all the...

"Now, ten years later, Scatterbrain collects an equally engaging assortment of Larry Niven's latest work, all in one captivating volume. Here are choice excerpts from several of his most recent novels, including The Ringworld Throne and Destiny's Road, as well as numerous short stories, nonfiction articles, interviews, editorials, collaborations, and correspondence. True to its title, Scatterbrain roams all over a wide variety of fascinating topics,...

Like Earth, the space colony of Destiny has its trading caravans, except on Destiny they don't deal in spices but speckles, an ingredient necessary for mental health. The hero is a member of a caravan and as the novel follows his adventures it describes the colony's unusual culture.

Having recently escaped from hell, Allen Carpenter is haunted by the imprisonment of unfairly tortured souls and partners with suicide-victim poet Sylvia Plath for a mission to return to hell and rescue the damned.

Since fleeing the supernova chain reaction at the galactic core, the cowardly Puppeteers of the Fleet of Worlds have--just barely--survived one crisis after another, but now a fresh disaster looms, and the beleaguered fleet needs a hero.

In the distant future, when man has conquered space and colonized the planets, a space ship arrives from an alien world that threatens the future of man.