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BBC: Chelyabinsk meteor - space rock hit-rate 'underestimated'
2013-11-06 22:20:59| PortlandOnline
News story posted to bbc.co.uk November 6, 2013.
Tags: rock
space
bbc
meteor
Category:Construction and Maintenance
News story posted to bbc.co.uk November 6, 2013.
Tags: rock
space
bbc
meteor
Category:Construction and Maintenance