Two children travel to a virtual reality 'theme park' called GulliverZone where they cross paths with a cyber sorceress.

Audiences around the world have been enchanted by James Cameron's visionary Avatar, with its glimpse of the Na'vi on the marvelous world of Pandora. But the movie is not entirely a fantasy; there is a scientific rationale for much of what we saw on the screen, from the possibility of travel to other worlds, to the life forms seen on screen and the ecological and cybernetic concepts that underpin the 'neural networks' in which the Na'vi and their sacred trees are joined, as well as to the mind-linking to the avatars themselves. From popular science journalist and acclaimed science fiction author Stephen Baxter, The Science of Avatar is a guide to the rigorous fact behind the fiction. It will enhance the readers' enjoyment of the movie experience by drawing them further into its imagined world.

Two children travel to a virtual reality 'theme park' called GulliverZone where they cross paths with a cyber sorceress.

Half a million years in the future, on a dead, war-ravaged world at the centre of the Galaxy, there is a mile-high statue of Michael Poole. Poole, born on Earth in the fourth millennium, was one of mankind's most influential heroes. He was not a warrior, not an emperor. He was an engineer, a builder of wormhole transit systems. But Poole's work would ultimately lead to a vast and destructive conflict, a million-year war between humanity and the enigmatic, powerful aliens known as the Xeelee. The Xeelee won, but at a huge cost. And, defeated in a greater war, the Xeelee eventually fled the universe. Most of them. A handful were left behind, equipped with time travel capabilities, their task to tidy up: to reorder history more to the Xeelee's liking. That million-year war with humankind was one blemish. It had to be erased. And in order to do that, a lone Xeelee was sent back in time to remove Michael Poole from history . . .

Michael Poole finds himself in a very strange landscape . . . This is the centre of the Galaxy. And in a history without war with the humans, the Xeelee have had time to built an immense structure here. The Xeelee Belt has a radius ten thousand times Earth's orbital distance. It is a light year in circumference. If it was set in the solar system it would be out in the Oort Cloud, among the comets - but circling the sun. If it was at rest it would have a surface area equivalent to about thirty billion Earths. But it is not at rest: it rotates at near lightspeed. And because of relativistic effects, distances are compressed for inhabitants of the Belt, and time drastically slowed. The purpose of the Belt is to preserve a community of Xeelee into the very far future, when they will be able to tap dark energy, a universe-spanning antigravity field, for their own purposes. But with time the Belt has attracted populations of lesser species, here for the immense surface area, the unending energy flows. Poole, Miriam and their party, having followed the Ghosts, must explore the artefact and survive encounters with its strange inhabitants - before Poole, at last, finds the Xeelee who led the destruction of Earth...

Return to the eon-spanning and universe-crossing conflict between humanity and the unknowable alien Xeelee in this selection of uncollected and unpublished stories, newly edited and placed in chronological reading order. From tales charting the earliest days of man's adventure to the stars to stories of Old Earth, four billion years in the future, the range and startling imagination of Baxter is always on display. As humanity rises and falls, ebbs and flows, one thing is always needed - the ability to endure. Contains eleven short stories and novellas.

Trapped on an alternate Earth, the combined crews of a crashed Russian spaceship, a British expeditionary force and a group of strays from the future must work together to survive, escape, and discover what led them to this point. All are from parallel universes where small changes in history led to different realities, and the tensions between the groups are rising. But some changes were not small. The solar system has been altered, changed, shaped in the various realities, and the World Engineers - unspeakably powerful, completely unknown - are still active. Why have they populated this planet with humanity's ancestors and dinosaurs? What is on the moon of Saturn that gives off such an odd light? And even if they can be found, can they be stopped - and should they be? Malenfant, Deidra and the rest of their party must find a way off the planet, back into space, and into the many dimensions seeking the answer...