2009 satellite collision
First hypervelocity spacecraft collision / From Wikipedia, the free encyclopedia
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On February 10, 2009, two communications satellites—the active commercial Iridium 33 and the derelict Russian military Kosmos 2251—accidentally collided at a speed of 11.7 km/s (26,000 mph) and an altitude of 789 kilometres (490 mi) above the Taymyr Peninsula in Siberia.[1][2][3][4][5][6] It was the first time a hypervelocity collision occurred between two satellites; previous incidents had involved a satellite and a piece of space debris.[7]