Thursday, December 04, 2003

The Mothership has landed

lenticular_hawaii

Astronomy Picture of the Day's explanation:

Can a cloud do that? Actually, pictured above are several clouds all stacked up into one striking lenticular cloud. Normally, air moves much more horizontally than it does vertically. Sometimes, however, such as when wind comes off of a mountain or a hill, relatively strong vertical oscillations take place as the air stabilizes. The dry air at the top of an oscillation may be quite stratified in moisture content, and hence forms clouds at each layer where the air saturates with moisture. The result can be a lenticular cloud with a strongly layered appearance. The above picture was taken last week near Mauna Kea, Hawaii, USA.

Science is cool . . .



Astronomy Picture of the Day via common sense & wonder

Posted at 11:31 AM in Science, SciFi | Permalink

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