In a galaxy 100 light-years away in the constellation Dorado sits a planetary system named TOI 700. It is home to TOI 700 d, the first Earth-size habitable-zone planet discovered by TESS, NASA’s Transiting Exoplanet Survey Satellite.

Image Credit: NASA/Goddard Space Flight Center

在离我们100光年的多拉多星系中,有一个名为TOI 700的行星系统。它是TOI 700d的家园,这是NASA凌日系外行星勘测卫星TESS发现的第一颗地球小的适居带行星。

图片来源:NASA/Goddard Space Flight Center

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