He observed the phases of Venus and discovered the moons of Jupiter, which had theological experts up in arms.

他观察金星的相。他发现了木星的卫星，这让神学家们惶惶不安。

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Of course Galileo made great use of the telescope, and his discoveries--that Jupiter has its own moons, that the Milky Way is made of stars, that Venus has phases just like the moon--were turning points.

FORBES: The Universe and Mrs. Ferguson