Russian Meteor Blast Bigger Than Thought, NASA Says

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Tariq Malik Published: February 18, 2013


Highway from Kazakhstan to Chelyabinsk, Russia



The meteor that exploded over Russia Friday was slightly larger than previously thought and more powerful, too, NASA scientists say.The Russian meteor explosion over the city of Chelyabinsk, on Friday (Feb. 15), injured more than 1,000 people and blew out windows across the region in a massive blast captured on cameras by frightened witnesses. Friday afternoon, NASA scientists estimated the meteor was space rock about 50 feet (15 meters) and sparked a blast equivalent of a 300-kiloton explosion. The energy estimate was later increased to 470 kilotons


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