Huge Block Of Ice Falls From Sky In Oakland

OAKLAND, Calif. -- Even the experts are having trouble explaining a solid block of ice that fell from the sky, crashed into earth and left behind a three-foot hole in the grass.
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But Hirsch said the airplane "would have to descend through what we call visible moisture, rain or clouds, for ice to build up." The skies were partly cloudy Saturday morning.

from: http://www.ktvu.com/news/8575846/detail.html

Sarà anche normale che dagli aerei precipitino dei blocchi di ghiaccio....ma a parte la curiosità lo trovo anche un filo inquietante....