Media :
Listen now (55 minutes)
Availability:
Available to listen.
Last broadcast on Tue, 13 Dec 2011, 18:05 on BBC World Service.
Synopsis
Scientists say they have found evidence of the "god particle". An expert takes your questions on what this actually means. And we bring you the latest on the attacks in Liege, Belgium.
Broadcast
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Tue 13 Dec 201118:05
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