Mars Curiosity rover takes selfie with 'Mont Mercou'

Photos: The best photos of Mars
NASA's Curiosity rover used two cameras to create this selfie in front of "Mont Mercou," a rock formation that stands 20 feet tall.
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Photos: The best photos of Mars
This perspective of Mars' Valles Marineris hemisphere, from July 9, 2013, is actually a mosaic comprising 102 Viking Orbiter images. At the center is the Valles Marineris canyon system, over 2,000 kilometers long and up to 8 kilometers deep.