Satellite crash 'worse than missile blast'

Read our related editorial: Even space is now brimming with trash SPACE weapons are destructive enough, but out-of-control satellites can be worse. So says a space scientist who has calculated that last week’s collision between a US Iridium satellite and the defunct Russian craft Cosmos 2251 delivered far more destructive energy than China’s anti-satellite missile test in 2007. In 2003 Hugh Lewis at the University of Southampton in the UK calculated the debris field created in a hypothetical collision of an Iridium satellite with a 1-kilogram object (Acta Astronautica, vol 54,
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