电子书下载格式:mobi+epub+pdf+txt
作者:Baxter,Stephen
出版时间:2009-9
书籍简介:
Michael Poole's "wormholes" constructed in the orbit of Jupiter had opened the galaxy to humankind. Then Poole tried looping a wormhole back on itself, tying a knot in space and ripping a hole in time. It worked. Too well. Poole was never seen again. Then from far in the future, from a time so distant that the stars themselves were dying embers, came an urgent SOS–and a promise. The universe was doomed, but humankind was not. Poole had stumbled upon an immense artifact, light-years across, fabricated from the very "string" of the cosmos. The universe had a door. And it was open…