This is a view of the sunset over Mars and Earth. The sun appears somewhat smaller on Mars than on Earth, as it is farther from Mars. When the sun sets on Earth, it paints the sky red. The sun appears blue when viewed from Mars. The sunset on Mars was captured by a robot from the National Aeronautics and Space Administration (NASA) in 2015. A photo of the sun setting on Earth was taken in France in 2012.
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