Mars looks distinctly red through a telescope. What gives it that color?

Question

Accepted Answer

A. Iron oxides in its soil

1. The color comes from the ground itself, not from the thin air above it.
2. Iron oxides in the martian soil give the surface its rusty red tone.
3. That color is why many early cultures linked the planet with war and blood.
_Source: OpenStax Astronomy (CC BY 4.0), section 10.1 The Nearest Planets: An Overview_

Answer

Red dust in its clouds

Answer

Warm rock under ice

Answer

Sulfur across its poles

Mars looks distinctly red through a telescope. What gives it that color?

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