The red color of Mars is mere inches deep
Briefly

Observing Earth from space reveals a myriad of colors: blue skies, green and brown continents, and white icecaps. In stark contrast, Mars presents a persistent red hue, dominating its landscape and atmosphere. This red color is attributed to iron oxide, and it has greatly influenced how Mars has been represented throughout history. Interestingly, beneath the red surface, colors shift, further captivating scientists studying the planet's geological history and atmospheric conditions.
The captivating interplay of colors on Earth—blue skies, green forests, and brown soils—contrasts sharply with Mars, where a singular, persistent red dominates its surface and atmosphere.
Mars's surface appears uniformly red, a color derived from iron oxide. This dominant hue has influenced its naming across cultures, noted for its striking presence in the night sky.
Read at Big Think
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