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Foot-and-mouth disease still spreading across Europe, despite the slaughter of tens of thousands of farm animals. Kenyanthropus platyops, the latest fossil hominid to be found in Kenya, might complicate the human family tree. World Water Day this week highlighted the deadly problems of contaminated and poor water supplies. The new science of asteroseismology, the study of the internal structure of stars by "listening" at their frequency spectra. "Hearing" the infrasound of a meteor exploding in the atmosphere.