内容简介：
2033年，中国"致远号"深空探测器在前往天王星的途中，发现一颗直径六公里的小行星正朝地球飞来。公元2036年，地球遭受MACU光幕降智打击，人类文明覆灭。"后土计划"正式实施。
3000万个人类基因和20万个地球生命基因就像一朵朵越过深谷、溪涧、江河的蒲公英，向着一个前景不明的未来飞去......
作者简介：
龙智慧，作家、导演，1979年生。曾在湖南某发电厂担任技术员和工程师九年，后进入人民日报社等媒体工作，历任记者、编辑、主编、总编助理等职。
2015年赴芝加哥艺术学院电影专业深造。2017年创作长篇科幻小说《后土记》，并以小说为蓝本拍摄科幻短片《侵入者》，入围2017洛杉矶独立电影节等影展。
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