今年2月8日北京时间5时4分15秒,在美国佛罗里达州卡纳维拉尔角航天中心,一艘名为“星尘”号的空间探测器,由德尔塔Ⅱ型火箭发射升空。它的目标是与81P/怀尔德2号彗里相会,采集其彗尾和彗发中的尘埃颗粒,并将其送回地球。这一探测活动或许能帮助科学家从彗里尘埃中更多地了解行星形成的过程。为何选择怀尔德2号彗星该彗星是1978年由瑞士天文学家怀尔德发现的。1974年9月10日以前它尚在太阳 At 5:04 am and 15 seconds Beijing time on 8 February this year, at the Cape Canaveral National Aerospace Center in Florida, United States, a space probe named “Stardust” was launched by the Delta II rocket Take off. Its goal is to meet with 81P / Wilder 2 Comet, collect dust particles from its comet and coma and send it back to Earth. This exploration may help scientists learn more about the process of planet formation from Comedy’s dust. Why Comet Wilder 2 This comet was discovered in 1978 by the Swiss astronomer Wilder. It was still in the sun before September 10, 1974