Solidot: 需要多少人才能殖民另一个星系

Solidot

奇客的资讯，重要的东西

需要多少人才能殖民另一个星系
http://solidot.org.feedsportal.com/c/33236/f/556826/s/39085cfe/sc/17/l/0L0Ssolidot0Borg0Cstory0Dsid0F390A31/story01.htm
Apr 6th 2014, 03:50

离我们最近的恒星是半人马座的比邻星，它距离地球4.2光年——这个距离非常遥远，如果要向它发射殖民飞船，那么到达目的地前将会有几代人在飞船上出生和死亡。一个问题是：为了维持足够的遗传多样性，星舰上至少要多少人？根据波特兰州立大学人类学家Cameron Smith的估算，最少1万人，而4万人最安全。William Gardner-O'Kearney帮助Smith建立MATLAB模拟，认为星际殖民成功的关键取决于起始人口，500人远远不够维持遗传多样性，而1万-4万人是比较安全的赌注。This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers.



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