Researchers at Lawrence Livermore National Laboratory (LLNL) have developed a modeling tool to assess the use of nuclear devices for defending against asteroid impacts. The tool simulates the energy deposition from a nuclear device on an asteroid’s surface, providing new insights into radiation interactions and shockwave dynamics. This model builds on NASA’s recent Double Asteroid Redirection Test (DART) mission, but nuclear deflection is seen as a viable alternative due to limitations in lifting mass to space. Mary Burkey, a physicist at LLNL, highlights the potential of launching a nuclear device to deflect or disrupt an asteroid heading towards Earth. This research aims to provide decision-makers with actionable information to prevent asteroid impacts and protect lives.
https://www.llnl.gov/article/50716/new-nuclear-deflection-simulations-advance-planetary-defense-against-asteroid-threats