The European Space Agency's Mars Express has spotted dozens of dust devils churning across Mamers Valles, a striking valley system on the Red Planet. These tornado-like whirlwinds appear as dark streaks against the dusty surface, captured in fresh imagery from the orbiter.
Dust devils are common on Mars, particularly during spring and summer, when solar heating drives convective vortices. The new observations offer scientists a rare, high-resolution look at how these features shape the landscape over time.
The images reveal multiple active dust devils at once, some casting shadows that hint at their height. The dark tracks they leave behind expose underlying rock, providing clues about surface composition and wind patterns.
Understanding dust devil activity helps researchers refine models of Martian weather and dust transport, which are critical for planning future robotic and crewed missions. Dust can affect solar panel efficiency and equipment performance.
A key limitation is that Mars Express can only capture snapshots; continuous monitoring of individual devil evolution remains challenging. Future orbiters may offer better temporal resolution.