Malin space science systems, MGS, JPL, NASA
Temperature differences spawned this storm at Mars’s north pole
LARGE dust storms on Mars might have far-reaching effects. They can affect the entire atmosphere, possibly seeding new weather systems that can combine to form planet-wide storms unlike anything we see on Earth.
Dust storms are not uncommon on Mars. Local ones are those that cover an area less than 100,000 square kilometres – roughly half the size of the UK – and these occur several hundred times every year, although they last less than a Martian day. Regional ones can be as large as 1 million square kilometres – roughly the size of Alaska – and happen a dozen times every year. They are also more persistent.
Global storms blanket Mars in a thick haze and can last for hundreds of days. Luckily these only come about every three to four Martian years. But how
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