NASA hit this mark in 2010, but by then, the space agency had already been re-tasked to find 90% of all NEOs larger than 140 meters by the end of 2020 … read more
NASA hit this mark in 2010, but by then, the space agency had already been re-tasked to find 90% of all NEOs larger than 140 meters by the end of 2020 … read more