In Depth | Mars – NASA Solar System Exploration
Jul 08, 2021· The Red Planet is actually many colors. At the surface, we see colors such as brown, gold, and tan. The reason Mars looks reddish is due to oxidization – or rusting – of iron in the rocks, regolith (Martian "soil"), and dust of Mars. This dust gets kicked up into the atmosphere and from a distance makes the planet appear mostly red.
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