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Weather satellites play a critically important role in today's high-tech weather forecasting by providing a reliable, routine set of 'images' of...
Jan 2009
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Astronomers now recognise the importance of cosmic dust, but many questions still remain, in particular, where does it come from?
Jan 2009
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Over the past decade the risk of asteroids and comets colliding with Earth has emerged as one of the most significant natural hazards faced by the...
Jan 2009
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