[Mb-civic] BBC E-mail: Ray burst is extinction suspect

[Hecate]

Hecate saw this story on BBC News Online and thought you
should see it.



** Ray burst is extinction suspect **
A huge cosmic explosion could have caused a mass extinction on Earth 450 million years ago.
< http://news.bbc.co.uk/go/em/fr/-/2/hi/science/nature/4433963.stm >


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