The article addresses the historical context of cosmic threats to Earth, underscoring significant events like the Tunguska explosion in 1908, which illustrates the potential devastation caused by asteroid impacts. With advancements in astronomical observation tools, scientists are becoming increasingly aware that the risk of a collision with a large asteroid is not merely hypothetical but a significant statistical possibility. Previous incidents such as the Tunguska explosion serve as reminders of the destructive forces of celestial bodies, leading to annual commemorations like 'Asteroid Day' organized by the International Astronomical Union.

As the article develops, it delves into the mechanisms and debates surrounding the use of nuclear devices to prevent asteroid impacts. The approach raises questions about safety, feasibility, and the ethical implications of deploying such a drastic measure. The discussion points out that while diverting an asteroid with nuclear force might seem like a measure of last resort, it aligns with humanity's increasing understanding of its capability to protect itself from astronomical threats.

Ultimately, the article cautions that awareness and preparedness are key to managing the risks associated with potential asteroid collisions. Encouraging a global dialogue around asteroid monitoring and response strategies could be crucial for future planetary defense efforts. It suggests that with increased cooperation and investment in planetary science, the potential threats from space can be effectively mitigated.