Dust From the Russian Meteor Was in the Atmosphere for Months

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Dust From the Russian Meteor Was in the Atmosphere for Months
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Masked in the chaos, however, was an enormous plume of dust that the Russian meteor left behind in Earth's atmosphere. This cloud, which had hundreds of tons of material in it, was still lingering three months after the Feb. 15 explosion, a new study has found. Scientists created a video of the Russian meteor explosion's dust cloud to illustrate the phenomenon.