The 2009 satellite collision was the first accidental hypervelocity collision between two intact artificial satellites in Earth orbit. The collision occurred at 16:56 UTC on February 10, 2009, at 789 kilometres above the Taymyr Peninsula in Siberia, when Iridium 33 and Kosmos-2251 collided. Read more
On 10 February this year, a defunct Russian communications satellite crashed into an American commercial spacecraft, generating thousands of pieces of orbiting debris. At the time, some observers put the odds of such an event occurring at millions, maybe billions, to one. But experts had been warning for years that useable space was becoming crowded, boosting the possibility of a serious collision. They have argued both for better monitoring of the space environment and for policies aimed at controlling the production of debris.