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" ... She's studying a process called space weathering, that is, the chemical and microstructural changes of the minerals located on the surfaces of the planetary bodies that lack atmospheres, produced by micrometeorite impact and solar wind irradiation. ... "
" ... Yet for all practical purposes, the athletes in this study did not report any clinically relevant symptoms after returning to play, essentially calling into question the clinical importance of such lingering microstructural and metabolic findings on such specialized MRI scans. ... "