These crashes are seldom dangerous to humans, mainly because of the relatively small size of these flying rocks. In fact, most meteors are caused by meteorites no larger than a grain of sand.
असल में, अधिकांश उल्काओं का जन्म ऐसे उल्काश्‍मों से होता है जो बालू के एक कण से बड़े नहीं होते ।