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前年的12月20日,可能是国际天文学界最伤心的日子。这一天,美国康奈尔大学行星研究试验室主任、世界最大的行星探测组织——美国行星学会的发起人之一和前任主席卡尔·萨根教授因患骨髓癌并发肺炎去世。不到1年,1997年夏天,在美国的火星飞船探路者号登上火星表面,进行了成功的探险之后,美国宇航局宣布,“火星探路者”号降落的地点,将被命名为卡尔·萨根试验地。提起卡尔·萨根教授,热心天文学的朋友都会竖起大拇指。这位生于1934年,死时才仅仅62岁的行星学大师,曾经主持过“水手9号”、“旅行者号”、“先锋10号”等著名的行星探险计划,他还是地球人第一封发往天外的金属信件(由“旅行者2号”携带飞出太阳系)的设计者。他主持行星探测杂志《伊卡洛斯》整整12年,对行星科学研究的发展作出了重要贡献。
The year before December 20 may be the saddest day for the international astronomy community. On this day, Cornell University planetary research laboratory director, the world’s largest planetary exploration organization - the American Planetary Society, one of the sponsors and former President Professor Carl Sagan suffered from bone marrow cancer complicated with pneumonia died. In less than a year, in the summer of 1997, following the successful exploration of the U.S. spacecraft Mars Pathfinder on the surface of Mars, NASA announced that the location of Mars Pathfinder would land on Called Carl Sagan experiment. Professor Karl Sagan, enthusiastic astronomical friends will be thumbs up. The planet master, born in 1934 and only 62 years old at the time of death, has presided over the famous Planet Adventures such as Sailor No. 9, Traveler No., Pioneer No. 10, He was also the designer of the first earth-based metal letters sent out of the sky by the “traveler 2” to fly out of the solar system. He presided over a full 12 years as the planet exploration magazine Icarus and made an important contribution to the development of planetary science research.