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Science 28 July 2000:
Vol. 289. no. 5479, p. 503
DOI: 10.1126/science.289.5479.503a
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NetWatch

Snow falls not only as six-sided dendritic crystals but also as needles, columns, and plates (and stuck-together combinations). But scientists got a really close look at these shapes just 7 years ago when cytologist William Wergin's group at the Agricultural Research Service chose a snowflake to test a liquid nitrogen-cooled scanning electron microscope stage. The lab's snow imaging techniques have since yielded pictures that are not just stunning--they're also in demand for everything from avalanche research to estimating the amount of water locked in the winter snowpack. Take a cool break from the summer heat at Wergin's site: www.lpsi.barc.usda.gov/emusnow

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Science. ISSN 0036-8075 (print), 1095-9203 (online)