“We found that the coldest places near the Moon’s south pole are also the brightest places — brighter than we would expect from soil alone — and that might indicate the presence of surface frost,” said Elizabeth Fisher, a graduate student at Brown University and lead author of a paper published in the journal Icarus.
The icy deposits appear to be patchy and thin, and it’s possible that they are mixed in with the surface layer of soil, dust and small rocks called the regolith.
“We’re not seeing expanses of ice similar to a frozen pond or skating rink. Instead, we are seeing signs of surface frost,” the researchers said.
“The frost was found in cold traps close to the Moon’s south pole.”
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