Giovanni Cassini (1625-1712) was the first to observe four of Saturn’s moons, including Iapetus.
Source: tatoeba (3951884)
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Giovanni Cassini (1625-1712) was the first to observe four of Saturn’s moons, including Iapetus.
Source: tatoeba (3951884)
Prometheus was the son of Iapetus and Clymene.
Source: tatoeba (11746824)
So, in the early Ordovician, Iapetus was wide enough to have one side in high latitudes and the other in the tropics: a massive ocean, indeed.
Source: wiktionary
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.