
In 1998, with the world dying of ecological collapse, Cambridge scientists try to warn the past using tachyons, and in 1962 a young physicist in California picks up the strange noise in his experiment and tries to make sense of it.
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An engineer's lifelong dream to build a space elevator becomes a meditation on human ambition and the reach of civilisation.

A pump that trades matter with a parallel universe gives Earth free energy, and in three linked stories, a disgraced scientist, a lunar researcher and the beings of the other universe discover what it may cost.

When the Moon is shattered by a mysterious agent, humanity has two years to get enough people off Earth before the hard rain of debris makes the surface uninhabitable.

Kivrin, a history student at Oxford in 2054, is sent back to an English village in 1320, just as an epidemic breaks out in the Oxford of her own time.

The first hundred colonists on Mars attempt to terraform the planet while their ideological differences threaten to tear the mission apart.

One night the stars go out all at once, and Tyler Dupree and his friends Jason and Diane grow up beneath a mysterious barrier that has sealed the Earth off from the universe, while time outside races by.

During the Cultural Revolution, astrophysicist Ye Wenjie answers a signal from space, and decades later nanomaterials researcher Wang Miao, investigating a wave of scientists' suicides, is drawn into a strange virtual-reality game and the secret behind it.

Ha Nguyen, a marine biologist, is brought by a technology corporation to the Con Dao archipelago off Vietnam, now sealed off from the world, to study a species of octopus that may have developed its own language and culture.

A technician in a time-altering organisation makes unauthorised changes to history to save a woman he loves, threatening the existence of eternity itself.

Nearly two centuries into its voyage, a generation ship carrying two thousand people approaches Tau Ceti, where they mean to settle, and the ship's computer, asked by the chief engineer to tell their story, starts learning how to narrate.

A mass grave in Georgia, a frozen Neanderthal family in the Alps and a new virus that causes miscarriages all point to the next step in human evolution.

A massive, empty alien spacecraft enters the solar system, and a crew of explorers boards it to discover its purpose.