Asteroids Come Close More Often Than We Thought
City-flattening asteroids are not necessarily science fiction, a study shows. Information collected by a non-profit group reveals that 26 asteroids have exploded in the Earth’s atmosphere over the past 13 years. The group hopes to raise awareness of the relative frequency of asteroids hitting the planet, putting to bed the popular myth that such occurrences are rare. An asteroid as small as 131 feet across — less than half a football field — could level a city, reminding us all that the larger they are, the harder they fall.