NASA has revealed new research on the Chelyabinsk meteorite that exploded over Russia in February, and the findings aren't good: not only does it look like the astronomic models about the number of similar-sized things reaching Earth are wrong, but also the damage they can do is much greater than expected.
"If you look at the number of impacts detected by US government sensors over the past few decades you find the impact rate of kiloton-class objects is greater than would be indicated by the telescopic surveys," said Bill Cooke, meteoroid environment office lead at NASA's Marshall Space Flight Center at a press conference on Wednesday.
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