The researchers also noticed that the dust inside the magnetically shielded zone is brighter than the surrounding areas, which might have something to do with the solar wind weathering that surface differently over the eons. "I think this is a very exciting observation," said lunar researcher Jasper Halekas of the Space Science Laboratory at the University of California at Berkeley. "There have been a number of indications that theses things were taking place. (But) this is the first directed study that really tells you 'they are there.'"

Interesting ...