Add Yahoo as a preferred source to see more of our stories on Google. On Dec. 23, 1672, Italian astronomer Giovanni Cassini discovered Rhea, Saturn’s second-largest moon. Rhea is made up of rock and ...
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What makes Rhea one of the strangest moons studied
Rhea, one of Saturn’s largest moons, has been studied for decades, yet much of it remains surprisingly uncertain. Data from ...
LONDON (Reuters) - Saturn's second-largest moon Rhea may have a small ring around it -- the first time a moon has been found to have a ring, an international team of researchers reported on Thursday.
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