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The Kennedy Years: From the Pages of The New York
The year 2013 is the 50th anniversary year of the assassination of John F. Kennedy, who still ranks as one of the top five presidents in every major annual survey. To commemorate the man and his time in office, the New York Times has authorized a book, edited by Richard Reeves, based on its unsurpassed coverage of the tumultuous Kennedy era. The Civil Rights Movement, the Bay of Pigs, the Cuban Missile Crisis, Vietnam, the space program, the Berlin Wall—all are covered in articles by the era's top reporters, among them David Halberstam, Russell Baker, and James Reston. Also included are new essays by leading historians such as Robert Dallek and Terry Golway, and by Times journalists, including Sam Tanenhaus, Scott Shane, Alessandra Stanley, and Roger Cohen. With more than 125 color and black-and-white photos, this is the ultimate volume on one of history's most fascinating figures.天文:太空深处的发现
金星的自转非常缓慢,周期为243天,比它的公转周期还要长。金星的自转方向与别的大行星相反,即自东向西旋转。究竟是什么原因造成金星的逆向旋转呢?至今这还是一个谜。在太阳系已发现的八大行星之中,有七颗行星自转方向是顺时针自转,只有金星的自转方向与众不同,呈逆时针方向。也就是说,如果人类生活在金星上的话,人们看到的太阳将是西升东落。金星一般被人看作是地球的姊妹星,它的自然条件与地球非常相似。