On This Day In Space: Oct. 25, 1671: Saturn's Yin-Yang Moon Iapetus Discovered by Giovanni Cassini

On Oct. 25, 1671, the Italian astronomer Giovanni Cassini discovered a new moon at Saturn! See how it happened in our On This Day In Space series.

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Oct 25, 2022 - 12:00
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On This Day In Space: Oct. 25, 1671: Saturn's Yin-Yang Moon Iapetus Discovered by Giovanni Cassini
On Oct. 25, 1671, the Italian astronomer Giovanni Cassini discovered a new moon at Saturn! See how it happened in our On This Day In Space series.