7月20日,美国加州理工学院喷气推进实验室教授、美国航空航天局“星尘计划”副首席科学家邹哲称,根据对从彗星上捕获的尘土的研究初步发现,彗星成分远比想象复杂,目前关于彗星的内容可能都需要改写。彗星由什么物质组成?这是人们长期关注的问题。由于彗星的速度达到数万千米每小时,所以很难捕 July 20, California Institute of Technology Jet Propulsion Laboratory, NASA “Stardust Plan ” deputy chief scientist Zou Zhe said that based on the dust from the comet captured preliminary study found that comet composition far Imagine the complex, the current content of comets may need to be rewritten. What comets come from? This is a long-term concern. Since comets reach tens of thousands of kilometers per hour, it’s hard to catch