by Milky Way Maid
Scientists suspected there might be a ring of debris around Saturn's moon Rhea. But when the Cassini spacecraft flew by and took pictures, it found nothing. Hmmm.
From the article in the Monitor: "There are very strong and interesting and unexplained electromagnetic effects going on around Rhea," said Matthew Tiscareno from Cornell University, who led the imaging campaign. "But we're making a pretty strong case that it's not because of solid material orbiting the moon….For the amount of dust that you need to account for [the earlier] observations, if it were there, we would have seen it."
Full story is at http://www.csmonitor.com/Science/Cool-Astronomy/2010/0729/What-s-that-weird-thing-around-Saturn-s-second-largest-moon
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