The night sky on Mars, free from light pollution, is dark and crystal clear. The stars shine brightly without twinkling, and the Milky Way appears vivid. Mars' moons, Phobos and Deimos, are visible—Phobos moves quickly across the sky. At times, Earth appears like a bright blue star near the Moon. The thin atmosphere gives the sky a reddish hue near the horizon during twilight.
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