Photo Gallery: Moon Sand and Earth Sand Grain Close-Ups
Watch documentary "A Grain of Sand" by Dr Gary Greenberg
Artist, inventor, and scientist, Dr Gary Greenberg has devoted his life to revealing the secret beauty of nature. Beginning his career as photographer and filmmaker, he worked on the first Superman film where he transformed human pancreatic cancer cells into the planet Kyrpton. After earning a Ph.D. in biomedical research, he went on to invent the high-definition, three-dimensional light microscope, for which he was issued eighteen US patents.