Italian astronomer Giovanni Cassini discovered Iapetus, Saturn’s third-largest moon.
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Astronomer Richard Walker discovered Saturn's moon, Epimetheus.
The Cassini–Huygens spacecraft became the first to enter Saturn's orbit.
Astronomer Nicolaus Copernicus made his first observation of Saturn.
A conjunction of Sun, Mercury, Venus, Mars, Jupiter, Saturn, and the Moon occurred.
German-British astronomer William Herschel discovered the moon of Saturn, 'Mimas.'
