出现金星凌日天象 亚洲、大洋洲、北美洲、欧洲大部、非洲东部、南美洲西北部金星凌日">出现金星凌日天象，为21世纪最后一次金星凌日。[http:--www.bbc.co.uk-news-science-environment-17745366 BBC]url=http:--www.bbc.co.uk-news-science-environment-17745366 [http:--www.bbc.co.uk-zhongwen-simp-science-2012-06-120606_venus_trek_across_sun.shtml BBC]url=http:--www.bbc.co.uk-zhongwen-simp-science-2012-06-120606_venus_trek_across_sun.shtml