SPUTNIK / SCIENCE PHOTO LIBRARY SPUTNIK / SCIENCE PHOTO LIBRARY
Chebarkul meteorite fragments research. Researcher at the Vernadsky Institute, Moscow, Russia, analysing fragments of the Chebarkul meteorite using a microscope. The meteoroid and meteor (Chelyabinsk Event) that produced these meteorite fragments occurred at around 09:20 local time (03:20 UTC) on 15 February 2013 over Russia's Chelyabinsk region. The meteoroid weighed several thousand tons, reaching an altitude of around 20 kilometres before exploding in an airblast. Most fragments found so far are less than a few centimetres across. Photographed on 28 February 2013.
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