The microscopic examination of the Apollo-11 and -12 sample and the quest for life forms.
D000128:Acholeplasma laidlawii; D001419:Bacteria; D005118:Extraterrestrial Environment; D008853:Microscopy; D008854:Microscopy, Electron; D008855:Microscopy, Electron, Scanning; D012988:Soil Microbiology; D013026:Space Flight