Friday, February 8, 2008

An Upward Flow of Warmer Gases

CARD IMAGE:

Saturn Storm

This image of the ringed planet Saturn shows a rare storm that appears as a white arrowhead-shaped feature near the planet's equator. The storm's white clouds are ammonia ice crystals that form when an upward flow of warmer gases shoves its way through Saturn's frigid cloud tops. The east-west extent of this storm is equal to the diameter of the Earth (about 7,900 miles),

Courtesy of Reta Beebe (New Mexico State Univ.), D. Gilmore, L. Bergeron (STScl), and NASA

Dear Robert,

Welcome to the winter you've only heard about. Watch for falling ice. Also be sure to visit us sometime after it gets warmer (April, maybe.)

Yr. Uncle Dees
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