Lunar eclipse 月食

The Earth (unseen) casts a faint shadow over the southwestern part of a full moon during the penumbral lunar eclipse in Cairo, Egypt. A penumbral lunar eclipse occurs when the moon crosses the Earth's shadow, causing a slight dimming on the moon. October 19, 2013  http://www.voanews.com/media/photogallery/1773044.html

Watch the Lunar Eclipse Tonight. It’s Free Science in Your Back Yard! | Geekosystem
http://www.geekosystem.com/lunar-eclipse-october-18/

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