Category: Photo Winter > snowflake
Photo: snowflake
Keywords: snowflake, ,
Image informationPD 8 - This image originally came from the Agricultural Research Service, <br>the research agency of the United States Department of Agriculture.<br><br>Ordinary hexagonal dendrite snowflake, highly magnified by a low-temperature scanning electron microscope. <br>This version has been artificially colorized to emphasize the central flake.
