Snow Crystals

[earthling]

Snow Crystal Photo ... Capturing the fleeting beauty of snowflakes ...
These pictures show real snow crystals that fell to earth in Northern Ontario, Alaska, Vermont, the Michigan Upper Peninsula, and the Sierra Nevada mountains of California.  They were captured by Kenneth G. Libbrecht using a specially designed snowflake photomicroscope.

http://www.its.caltech.edu/~atomic/snowcrystals/photos/photos.htm
http://www.its.caltech.edu/~atomic/snowcrystals/photos2/photos2.htm
http://www.its.caltech.edu/~atomic/snowcrystals/photos2/photos3.htm
A Guide to Snowflakes  ... A look at the different types of falling snow ...
http://www.its.caltech.edu/~atomic/snowcrystals/class/class.htm

[earthling]

Electron Microscopy Unit Snow
pictures of snow taken by high powered microscopes.

The images were obtained using a Low Temperature Scanning Electron Microscope (LT-SEM) that is located in the Beltsville Agricultural Research Center in the Electron Microscopy Unit, Bld. 177-B, Beltsville Maryland 20705.
http://emu.arsusda.gov/snowsite/

[earthling]

Wilson Alwyn Bentley was the first person to successfully photograph snow crystals, which are commonly known as snowflakes. A brilliant, unique individual—largely self-taught—Bentley was born in a Vermont farmhouse which remained his lifelong home. Through remarkable determination and vision he became a gifted and pioneering scientist and photographer, passionately dedicated to capturing and sharing nature’s beauty, mystery, and magnificent design as seen in snow crystals.
The Bentley Snow Crystal Collection of the Buffalo Museum of Science is a digital library providing a high-quality collection of stunning, un-retouched images of Wilson A. Bentley’s original glass slide photographs of snow crystals, and includes dynamic resources to further an appreciation and understanding of Bentley and his work.

http://www.bentley.sciencebuff.org/collection.asp