联盟TMA-12 联盟TMA-12号载人宇宙飞船返回地球，降落在哈萨克斯坦阿尔卡雷克市附近。[http:--news.xinhuanet.com-mil-2008-04-20-content_8013549.htm 新华网]url=http:--news.xinhuanet.com-mil-2008-04-20-content_8013549.htm [http:--news.bbc.co.uk-chinese-simp-hi-newsid_7350000-newsid_7356100-7356145.stm BBC中文网]url=http:--news.bbc.co.uk-chinese-simp-hi-newsid_7350000-newsid_7356100-7356145.stm