As three nations prepare to send spacecraft to Mars, a planetary scientist offers her personal tour of those who led the way. By Alexandra Witze As three nations prepare to send spacecraft to Mars, a planetary scientist offers her personal tour of those who led the way. By Alexandra Witze

中文翻译：

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通往红色星球的许多道路——回忆录

在三个国家准备向火星发射航天器之际，一位行星科学家亲自参观了那些带路人。作者：Alexandra Witze 当三个国家准备将航天器送上火星时，一位行星科学家亲自参观了那些带路人。亚历山德拉·维茨