Close Encounter of the Rocky Kind (Asteroid 2005 YU55)
Close Encounter of the Rocky KindUniversity of Arizona, Tucson, AZ press release 7NOV2011 Discovered by a University of Arizona astronomer six years ago, a city-block-sized space rock will race past the Earth closer than the moon in what will be the closest encounter of an object of this size in more than 60 years. When an asteroid the
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