Dinosaur-killing rock 'was a comet'
The space rock that hit Earth 65m years ago and is widely implicated in the end of the dinosaurs was probably a speeding comet, US scientists say.
Continue Reading http://www.bbc.co.ukThe space rock that hit Earth 65m years ago and is widely implicated in the end of the dinosaurs was probably a speeding comet, US scientists say.
Continue Reading http://www.bbc.co.uk
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