China: virus death toll rises as more cities shut down

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China has widened a lockdown in Hubei province - the centre of the coronavirus outbreak - as the death toll climbed to 26. Research on the ancient bones of skeletons found in Cameroon has shed new light on our ancestors from 8000 years ago. A new study, using data from a NASA mission, suggests that chemical reactions on the moon could mean there are enough energy sources to support life.