NASA scientist Kelly Fast is sounding the alarm about a potential cosmic catastrophe. She warns that Earth is vulnerable to an army of undetected asteroids, each capable of wiping out an entire city. These 'city killers' are small enough to evade detection but large enough to cause catastrophic damage. Fast, a planetary defense officer, is particularly concerned about the 500-foot-wide asteroids that are currently beyond our radar. With an estimated 25,000 of these interstellar travelers passing near Earth, and only 40% of them accounted for, the situation is dire. Fast emphasizes the need to 'find asteroids before they find us' and develop methods to intercept them before they reach our planet. However, even with the recent success of the Dart mission, which demonstrated the ability to nudge asteroids off course, the challenge of defending against 'city killers' remains daunting. The lack of funding and the difficulty of replicating the Dart mechanism with these smaller asteroids could leave us vulnerable. As scientists continue to study these asteroids, the race is on to develop effective defense strategies before it's too late. The question remains: Are we prepared for the next asteroid impact?
