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Did an Asteroid cause this Extintion Event?

Did an asteroid cause the Permian-Triassic extinction event 250 million years ago?

New geo-chemical research into the theory that a massive asteroid wiped caused the Permian-Triassic extinction event 250 million years ago. African cassava crops and the green mite that attacks them both come from South America, so could a Brazilian mite-eating predator be the farmers' friend? Medical imaging telling us about causes of mental illness. Mutant protein that causes leukemia is now being turned against the disease. Physicists at Fermilab near Chicago prepare to hunt the Higgs boson particle.

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26 minutes

Βι¶ΉΤΌΕΔ World Service Archive

This programme was restored as part of the World Service archive project

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