Can a nuclear blast save Earth from incoming asteroid? Scientists test 2 methods

Could a nuclear explosion stop an asteroid heading toward Earth? A new study explores two proposed defense methods, including one that uses a prepared crater to improve energy transfer. Simulations show different changes in asteroid velocity, but neither method has been demonstrated on a real asteroid. Here's what the research reveals about humanity's potential last-resort planetary defense. Video Credit: NASA DART mission footage and imagery: NASA. Additional planetary-defense information: NASA, GettyImages, Lawrence Livermore National Laboratory, Space: Science & Technology, AI generated visuals (Google Gemini & Chatgpt)