Author: Greg Egan
Year: 2011
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Genres/categories:
Science fiction, Hard science fiction
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ISBNs:
9781597802925
9780575095113
1597802921
0575095113 |
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In Yalda's universe, light has no universal speed and its creation generates energy.
On Yalda's world, plants make food by emitting their own light into the dark night sky.
As a child Yalda witnesses one of a series of strange meteors, the Hurtlers, that are entering the planetary system at an immense, unprecedented speed. It becomes apparent that her world is in imminent danger - and that the task of dealing with the Hurtlers will require knowledge and technology far beyond anything her civilisation has yet achieved.
Only one solution seems tenable: if a spacecraft can be sent on a journey at sufficiently high speed, its trip will last many generations for those on board, but it will return after just a few years have passed at home. The travellers will have a chance to discover the science their planet urgently needs, and bring it back in time to avert disaster.
This book is part of the "Orthogonal" series. Here are some other books from this series:
 | "The Arrows of Time"
First published in 2013
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 | "The Eternal Flame"
First published in 2012
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