Skyscraper-sized asteroid and 4 others speed past Earth on the same day
CBS News   a day ago
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Skyscraper-sized asteroid and 4 others speed past Earth on the same day  CBS News4 large asteroids, including a skyscraper-size 'city killer,' will zoom past Earth in a 12-hour span today (Oct. 24)  Livescience.com‘City killer’ asteroid is one of 4...