This picture of Mars was taken on July 9th 2016 at 10;04 pm from my back
yard. Here is the reason why Mars looks blue in this picture.
On
Earth, blue light from the Sun is scattered by air molecules and spreads
around the sky to create a blue canopy. Mars has less the 1% of Earth's
atmosphere, so we only notice the blue when looking through the
greatest thickness of the Martian air (and dust) around the time of
sunset and sunrise
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