Once you have travelled this far out in time and space, is there ever a way back." Packed weight 270gms. On board, not just decades but eons are passing in the blink of an eye. The ship in the story intended to attain a tau of 0.015, but as they continue to accelerate beyond the original schedule, it decreases. Soon the ship is speeding through galaxies. Therefore, as Anderson writes, 'the closer that the ship's velocity comes to the speed of light, the closer tau comes to zero', and the longer the time that passes outside the ship for a duration inside. But the ship's deceleration system is irreparably damaged when it hits a cloud of inter-stellar dust and its acceleration continues inexorably towards light speed - tau zero. A journey lasting thirty years will pass, for the crew, in less than a decade. The ship will travel at almost the speed of light and as a result subjective time on board will slow down. Fifty men and women set out from earth aboard an inter-stellar craft bound for a planet thirty light-years away. 841 reviews The epic voyage of the spacecraft Leonora Christine will take her and her fifty-strong crew to a planet some thirty light-years distant.This is a book in a new series of classic SF stories by various authors brought out in 2009 by Gollancz. Preview Tau Zeroby Poul Anderson Tau Zero by Poul Anderson 3.84 This is a B format (130 x 198 mm) paperback with a full 1 to 10 number sequence indicating a first printing of THIS edition.
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