On Dec. 23, 1672, Italian astronomer Giovanni Cassini discovered Rhea, Saturn’s second-largest moon. Rhea is made up of rock ...
Astronomy on MSN
Dec. 23, 1672: Saturn's moon Rhea is discovered
Across the span of 1671 through 1684, Italian-French astronomer Giovanni Cassini discovered four moons of Saturn while ...
Saturn sets a new record with a staggering 274 moons, surpassing Jupiter’s total and cementing its position as the planet with the most moons in our solar system. The discovery of 128 new moons, ...
A mere decade ago astronomers knew of just 62 moons around Saturn. Today the ringed planet boasts a staggering 274 official satellites. That’s more than any other world in the solar system—and far too ...
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