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Mars was once covered with Water

Mars was once covered in water for a long time

Nasa announces that the Opportunity robot rover has found evidence that the surface of Mars was drenched in "liquid water" for long enough for mineral and rock formation. Why sequencing the genome of the chicken could be important for the study of avian flu and other diseases. New contoversy over what killed off the dinosaurs. Will "geekster" rap ever replace gangsta rap?

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23 minutes

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成人论坛 World Service Archive

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

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