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Richard A. Lovett A newly discovered asteroid called 2012 DA14 will pass so close to Earth in February that it might hit a communications satellite, scientists say. "That's very unlikely, but we can't rule it out," said Paul Chodas, a planetary astronomer at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California.

Richard A. Lovett A newly discovered asteroid called 2012 DA14 will pass so close to Earth in February that it might hit a communications satellite, scientists say. "That's very unlikely, but we can't rule it out," said Paul Chodas, a planetary astronomer at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California.

An asteroid that is 400m (1,300ft) wide has passed by Earth, much to the delight of astronomers.