Essentially, it’s rust. That red-tinted iron oxide disintegrated into dust and spread across the planet on wind currents for billions of years—as it continues doing today. However, different ...

As Martian winds spread this dust everywhere, it created the planet’s iconic red appearance.” The findings of the study also provide tantalizing clues about Mars’ ancient climate.

New research finally explains why. Researchers have revealed that New Zealand’s Southern Alps turned red after a massive dust storm in southeast Australia sent clouds of red dust across the sea ...