Twenty years ago, the Spirit and Opportunity rovers landed on Mars. Over the next 15 years, they showed us a planet that was warmer and wetter — and capable of sustaining life — that we now take as read.

中文翻译：

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双漫游车的二十年

二十年前，勇气号和机遇号火星车登陆火星。在接下来的 15 年里，他们向我们展示了一颗更温暖、更湿润、并且能够维持生命的星球，我们现在已经将其视为了现实。