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Ready for a city-killer?

“To make sure that we are prepared if a ‘city-killer’ comes calling, we must embrace innovation, make the most of our technological prowess, and work as one species.


Fears of cosmic threats have been rekindled by the discovery of asteroid 2024 YR4, one that has a slim but real risk of striking Earth in 2032. Even when experts tell us there isn’t any reason to panic right now, should we still be concerned? More importantly, what are our options?

With an estimated width of 130 to 300 feet, 2024 YR4 is classified as a “city-killer.” A large metropolitan region might be devastated by an impact, resulting in extensive damage and fatalities.

Even if there is a little over one percent chance of impact with a rock the size of a football field, the potential destruction makes attention necessary.

After all, the dinosaurs did not see the asteroid that wiped them out. But we are not helpless like the dinosaurs were. We have the resources and science to identify and possibly thwart such dangers.

By demonstrating that a “kinetic impactor”— a spacecraft colliding with an asteroid — can change its trajectory, the successful DART mission in 2022 was a turning point in planetary defense. Yes, this method is still in its infancy, but it still provides a concrete countermeasure against risks such as 2024 YR4.

Scientists are investigating alternative deflection techniques in addition to kinetic impactors. Parts of an asteroid’s surface may be vaporized by powerful lasers, producing a propulsive force that would push it off course.

Another idea, known as the “gravity tractor,” is a spacecraft hovering close to an asteroid and gradually guiding it away with the help of its gravitational pull. These concepts demonstrate the continued dedication to planetary defense, even though they are still speculative.

The eight years leading up to the possible impact of 2024 YR4 provide time for observation, trajectory improvement, and, if necessary, the creation of a deflection plan. Unlike the dinosaurs, we have the benefit of lead time. We can become active participants in our cosmic destiny instead of passive onlookers as a result.

It is imperative that funding for asteroid tracking and detection programs continue. To better comprehend the risks, we need to find and describe as many potentially dangerous asteroids as we can. It is equally important to investigate deflection technologies further. To handle upcoming dangers, we require a strong toolkit.

International collaboration is also essential. An asteroid impact is a worldwide threat that calls for a coordinated response rather than a domestic one. Our shared safety depends on exchanging information, organizing observation activities, and combining resources.

How we should handle our concerns is more important than whether we should worry at all. Knowledgeable worry can inspire, while fear can paralyze. We need to encourage international cooperation, support scientific research, and push for more funding for planetary defense. Ignoring the repercussions of inaction is too costly.

The chances of 2024 YR4 striking Earth are slim, but not zero. The possible repercussions are too serious to ignore. To make sure that we are prepared if a “city-killer” comes calling, we must embrace innovation, make the most of our technological prowess, and work as one species.

Acting now, while we still have the opportunity to change the course of cosmic events and save our planet, is more important than waiting for the asteroid to come crashing down on us.

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Credit belongs to: tribune.net.ph

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