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Following is a summary of current science news briefs.
Russia cleans up after meteor blast injures more than 1,000
CHELYABINSK, Russia (Reuters) - Thousands of Russian emergency workers went out on Saturday to clear up the damage from a meteor that exploded over the Ural mountains, damaging buildings, shattering windows and showering people with broken glass. Divers searched a lake near the city of Chelyabinsk, where a hole several feet wide had opened in the ice, but had so far failed to find any large fragments, officials said.