According to NASA [1], asteroid needs to be larger than 25 meters to cause localized damage. It’d need to be larger than 1-2km to cause globally observable cons

According to NASA [1], asteroid needs to be larger than 25 meters to cause localized damage. It’d need to be larger than 1-2km to cause globally observable consequences. [1] https://www.nasa.gov/solar-system/asteroids/asteroid-fast-facts/ https://www.nasa.gov/solar-system/asteroids/asteroid-fast-fa...