It was previously found only in the ice of Antarctica.
Scientists first discovered dust in earth’s cities, namely in Paris, Oslo and Berlin. It was previously found only in the ice of Antarctica.
Their discovery, the researchers from Imperial College London reported in the journal Geology.
To find particles of cosmic dust, they had to sift through about 300 pounds of dirt collected from the rooftops of European cities.
With the help of magnets, scientists have extracted particles containing magnetic minerals, and thus has allocated a total of more than 500 space dust measuring just 0.03 mm.
The study showed that discovered in the cities of cosmic dust enter the atmosphere at a speed of about 12 kilometers per second.
This work is important to scientists because it can help them to reconstruct the geological history of the Solar system.
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