There is geologic evidence of large rocks from outer space impacting the earth in prehuman history. But will such an event ever take place on our populated planet?
इसका भूवैज्ञानिक प्रमाण है कि मानवपूर्व इतिहास में अंतरिक्ष से बड़ी - बड़ी चट्टानें पृथ्वी पर आ गिरीं ।