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NASA’s InSight mission on Mars—first glimpses of the planet’s interior from seismology

机译:美国宇航局在火星的洞察使命来自地震术中的星球内部的瞥见

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摘要

Unlike all previous Mars missions, which explored the geology, chemistry, and atmosphere of the red planet in great detail, the Interior exploration using Seismic Investigations, Geodesy and Heat Transport (InSight) mission is focused on the interior structure and processes of Mars. It is high time to address these topics as our knowledge of the Martian interior—or, in fact, that of any other terrestrial planet—is poorer than our knowledge for the Earth was 100 years ago. While it is generally assumed that differentiation processes early in the formation of terrestrial planets lead to a subdivision into a brittle rocky crust, a silicate mantle, and an iron-rich core1, the finer details are widely uncertain for Mars. This lack of knowledge hampers our understanding of its geodynamic history, and the formation and evolution of terrestrial planets in general. The three experiments carried out by InSight, and specifically the Seismic Experiment for Interior Structure (SEIS), are about to change this.
机译:与以前的所有MARS任务不同,探索了红色星球的地质,化学和气氛,使用地震调查,大地测量和热传输(见解)使命的内部勘探集中在火星的内部结构和过程中。这是一个很好的时间来解决这些主题作为我们对火星内部的了解,或者实际上,任何其他地球行星的知识 - 比我们100年前的知识更差。虽然通常假设在形成陆地行星的形成过程中,虽然陆地行星的形成导致脆性岩壳的细分,硅酸盐地幔和富铁核心1,但更细的细节对于火星广泛不确定。这种知识妨碍了我们对其地球动力学历史的理解,以及一般地球行星的形成和演变。通过洞察力进行的三个实验,特别是室内结构(SEIS)的地震实验即将改变这一点。

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