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639-Earth Approachers
Published 4 years, 10 months ago
Description
During a recent 60 day period asteroid hunters discovered 29 space rocks as they passed closer to us than the Moon. These small asteroids averaged 30 feet in diameter and ranged in size from one that could fit under a basketball hoop to one the would fill the whole basketball court. Several times every year a small space rock bursts into fragments some of which strike human structures.