Remember that giant meteor that exploded over the Russian city Chelyabinsk back in February? You may have forgotten all about it, but NASA hasn't. The agency today released a new animated video of data collected by its Suomi-NPP weather observation satellite, which reveals after it entered Earth's atmosphere and exploded with 30 times the force of the US atom bomb on Hiroshima due to friction in the atmosphere, it caused a huge dust cloud made of hundreds of tons of debris. The cloud then traveled all the way around the northern hemisphere within four days, and remained remained up in the sky for three months, NASA explains.
via The Verge - All Posts http://www.theverge.com/2013/8/14/4621802/nasa-satellite-russian-meteor-plume-dust-path
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