In October 2009 , one asteroid of radius 10 meters came very close to earth to the point that in a city of indonesia , fire balls were visible which resulted from asteroif getting burnt , even in november another huge asteroid came as close as few thousand miles to earth and in both this occasion NASA did not have any prior information about these asteroids .
Do you still believe NASA's tall claim that if any asteroid is with collision path with earth , NASA will know it 25 years before the collision actually happens.