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Superb images of Mars reveal swarming dust storms raging on the surface of the planet for weeks and are similar to the one that killed NASA's rover Opportunity.
- Experts from the European Space Agency in Cologne have watched
- These storms form at the North Pole of Mars before dispersing towards the Equator
- Storms of a few days or weeks are commonplace on the surface of Mars.
- Two cameras aboard Mar Express have swept the storms recently
Dusty storms at the North Pole of Mars have ravaged the surface of the planet in recent weeks, revealed satellite images of the European Space Agency.
Experts from the German Aerospace Center in Cologne watched local and regional storms form at the pole before dispersing towards the equator.
Storms that last a few days or weeks and are limited to a small area are common places on Mars.
As at its peak, last year, during a storm that surrounded the Red Planet for many months, the entire planet was the most severe, killing NASA's rover Opportunity.
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Dusty storms at the North Pole of Mars have ravaged the surface of the planet in recent weeks, revealed satellite images of the European Space Agency. Pictured: This image, taken by HRSC on May 26, shows a spiral-shaped dust storm
ESA's Mars Express observed at least eight different storms at the edge of the North Pole ice cap between May 22nd and June 10th.
These formed and dissipated very quickly over a period of one to three days.
Two cameras on board the Space Shuttle, the High Resolution Stereo Camera (HRSC) and the Visual Surveillance Camera (VMC), have been monitoring the storms in recent weeks.
"We are currently in the spring in the northern hemisphere of Mars," said a spokesman for ESA in a written statement.
"Clouds of water ice and small dust rises are frequently seen along the seasonally retreating ice cap.
"Many spacecraft on Mars broadcast daily weather reports from orbit or from the surface.
"They provided global and local impressions of changing weather conditions."
Experts have observed local and regional storms form at the pole before dispersing towards the equator. The montage of images (above) shows three different storms developing on May 22 and 26 and between June 6 and June 10.
Vaporous patches of clear clouds can be seen at the outer edge of the polar cap.
It is several thousand kilometers from the pole, near the volcanoes Elysium Mons and Olympus Mons.
Mars Express observed that when dust storms reached large volcanoes, orographic clouds that had previously developed began to evaporate as the air mass is heated by the influx of dust.
These are clouds of water ice driven by the influence of the leeward slope of the volcano on the airflow.
These regional dust storms only last a few days; the high dust is transported and dispersed by the world traffic in a fine mist in the lower atmosphere, between 20 and 40 km (12 to 24 miles).
Some traces of dust and clouds remained in the volcanic province until mid-June.
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