Word: mccaulay
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...other interpretations. Cornell University Astronomer Thomas Gold, who believes that Copernicus was formed, like most other lunar craters, by the impact of a meteorite, theorizes that its smooth floor consists of compacted dustlike material that is continually being knocked off crater walls by micrometeorites. U.S. Geological Survey Geologists John McCaulay and Richard Eggleton were fascinated by the apparent presence of erosion channels on the far wall of the crater. They suggest that the channels may have been formed by solid particles flowing down the crater wall...