* Astronomy

On the edge of an east London rooftop stands an increasingly bedraggled man. Arms outstretched, the rain lashes at his face and cascades down his beard onto sopping clothes.
In each hand he holds out a dish containing tiny metal crucibles; he grins as the raindrops ping against the containers.
Just another day at the office for University of East London scientist Bruce Moffett and the perfect weather to investigate the biological properties of rain.
The idea that bacteria in the clouds cause rain might, at first, rank as one of the more bizarre scientific theories.

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