Dozens of active dust devils spotted in Mars canyon system

The European Space Agency's Mars Express has captured images of dozens of active dust devils swirling through Mars's Mamers Valles, a vast canyon system. These whirlwinds, formed by warming surface temperatures, lift dust into the air and play a critical role in redistributing material across the planet.

Mars Express uses its High Resolution Stereo Camera to create detailed images by combining multiple views from different camera channels. This method allows scientists to detect moving objects like dust devils, which appear as yellow dots with pinkish shadows in the images. The spacecraft has previously observed similar phenomena in other regions of Mars, including the Deuteronilus Mensae.

Mamers Valles, named after the ancient Oscan language, stretches over 1,000 km and features steep cliffs, mesas, and debris-covered glaciers. The region, dating back to the late Noachian period around 3.8 billion years ago, shows signs of past water, lava, and ice activity. Despite the current arid conditions, some water ice remains protected beneath layers of rock and dust.

The new images, captured using advanced imaging techniques, provide insights into the movement of dust devils and help scientists track wind patterns across Mars. These findings contribute to a broader understanding of the planet's dynamic environment and its geological history.