What gives Mars its distinctive reddish-orange color?
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The red color of Mars comes from iron oxide, commonly known as rust, which is abundant in the planet's soil and dust. This same compound gives blood and rust their reddish hues. The fine dust particles, lifted by winds, contribute to the planet's overall rusty appearance, making it easily identifiable in the night sky. Photo: Jonasfolmer, Wikimedia Commons, CC BY-SA 4.0.
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Source: Wikipedia (CC BY-SA)
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