Resumen de There's no good way to warn of meteor strikes
The next Russian-style meteor strike may come as a surprise. A study of a potential early-warning system has found that it will be unlikely to spot incoming space rocks the size of the one that burst apart above Chelyabinsk, Russia, a year ago. However, the chances of such a meteor causing a dangerous crash are so low that catch-all warning systems are not worth the cost. The Chelyabinsk meteor was a 20-meter rock that unexpectedly hurtled into the atmosphere on 15 February 2013.
