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Post by Mistress Rell on Mar 14, 2008 7:15:45 GMT -5
Craters come in all shapes and sizes, some more bizarre than others. Recent photos of Mercury have revealed two new categories of crater that scientists are puzzling over how to explain. When NASA's MESSENGER spacecraft flew by the planet Jan. 14 it snapped pictures of several craters with strange dark halos and one crater with a spectacularly shiny bottom. "The halos are really exceptional," said MESSENGER science team member Clark Chapman of the Southwest Research Institute in Boulder, Colorado. "We've never seen anything like them on Mercury before and their formation is a mystery." Full Article
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Post by Enchant on Mar 15, 2008 9:05:53 GMT -5
Those are huge. I wonder what caused them. The only thing I can think of is some kind of severe impacts, only I would think something that big would have been seen.
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