The atmospheric carbon dioxide was thought to be the result of the oxidation of oxygen molecules in the exosphere. As a consequence of this discovery, Rhea became the first Saturnian moon, and only ...
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 ...
Astrum on MSN
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 flybys and long-term observation have revealed a world that doesn’t behave ...
Astronomy on MSN
The sky today on Monday, January 26: Saturn's moons in motion
Looking for a sky event this week? Check out our full Sky This Week column. January 25: Aries' Hoofprint Saturn's four ...
Saturn leads the solar system with 274 moons. From Titan’s methane lakes to Enceladus’ geysers, explore the diverse worlds of ...
Astronomy on MSN
The Sky This Week from January 23 to 30: A hoofprint on the Moon
Sky This Week is brought to you in part by Celestron. Friday, January 23Pluto reaches conjunction with the Sun at 5 A.M. EST.
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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