Today's installment of the Space Advent Calendar features the Grand Canyon, which was in the news last week. I visited the canyon for the first time last year, which deepens my appreciation of this satellite picture. (We're the teeny tiny dots at upper left.)

http://photoblog.nbcnews.com/_news/2012/12/01/15605806-holiday-calendar-satellite-shows-a-grander-canyon?lite 

Photo: NASA / GSFC / METI / ERSDAC / JAROS
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