Asteroid Buzzes Earth Highlighting Cosmic Blind SpotBy Robert Roy Britt Senior Science Writer 3-21-2002 An asteroid large enough to have flattened a city buzzed Earth earlier this month and was not seen until after if flew harmlessly by. The space rock approached Earth in the glare of the Sun, a blind spot that made it impossible to see during the day or night from any terrestrial vantage point. The event illustrates the potential of a surprise hit by an asteroid, astronomers said. The object, now named 2002 EM7, was probably between 40 and 80 meters (130-260 feet) in diameter, said...