Fragmentos do meteorito caem em lago na Russia
Source : http://www.bbc.co.uk
A large fragment from a meteor which crashed in Russia has landed in an icy lake, police say.
Scientists are keen to analyse the remnants, found near Chebarkul, a town in Chelyabinsk region.
The Russian Academy of Sciences estimates that the meteor weighed about 10 tonnes and entered the Earth's atmosphere at a speed of at least 54,000 km/h (33,000mph).
As BBC science reporter Rebecca Morelle explains, most of the meteor would have burnt up before hittin
19 Feb 2013
