The clouds glow red over a house with solar collectors on its roof in Leipzig, Germany, 17 June 2010. A weather proverb says 'Red sky in the morning, shepherd's warning - red sky at night, shepherd's delight' ('Morgenrot - Schlechtwetter droht, Abendrot - Gutwetterbot'). Red sky at night can only occur when the setting sun in the west stands low and illuminates clouds farther east.

- Image ID: D599YT

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