Last year’s successful double asteroid redirection experiment, which involved firing a satellite bomb into an asteroid, has been followed by a detailed simulation of a nuclear deflection scenario, similar to the plot of the 1998 space disaster movie Armageddon.
Researchers at Lawrence Livermore National Laboratory, led by Mary Varkey, have published a paper advancing the active field of research on planetary defense against asteroid threats. They propose that detonating a nuclear explosive device as close as possible to an incoming asteroid may be the best strategy, considering that using satellites as missiles is not always practical.
The challenge, however, lies in precisely deflecting the asteroid’s nucleus to avoid potential impact with Earth, as depicted in the movie Armageddon, or the widespread destruction scenario depicted in the film Deep Impact.
In their paper published in the Planetary Science Journal, Burkey et al. explain the complexities involved in simulating the energy storage and the interaction of X-rays from a nuclear explosion with the asteroid’s surface, emphasizing the high computational cost and the need to break down the problem into stages for accurate modeling.
The team’s efforts have resulted in a comprehensive simulation of the nuclear deflection scenario, offering insight into the potential outcomes of such an event. The team also highlights the need for faster simulations, potentially utilizing machine learning to optimize response times for specific threats.
Image credits: Varkey et al.
By simulating the nuclear deflection scenario, the team aims to further advance the understanding of potential strategies for planetary defense against asteroid threats and minimize response times for future events.
Source: techcrunch.com
