Encouraging computer simulation results point to the use of nuclear devices as a viable defense against the earth.Threatening asteroids that suddenly appear blue.
Of Center for Near Earth Object Studies. On NASA’s Jet Propulsion Laboratory Once every two years, the asteroid carries out the simulation effect. Of Exercise from Earlier this year Uniquely, the imaginary threatening asteroid called “2021 PDC” was discovered just six months before the scheduled surface-to-earth meeting. It was considered insufficient time to devise a mitigation strategy, so participants focused primarily on disaster response. This Served as a rude reminder of our weakness to these discoveries. کشودرگرہ
Ideally, we would have a few years. Or even decades. Extending an answer, such as gently removing an asteroid from a path connected to Earth using the gravitational effect of a large spacecraft. Alternatively, we can use dynamic effects to change the direction of an object. Or a nuclear device to break it. In thousands of pieces This latter strategy, known as disruption, is the kind of thing we’d expect in stupid Hollywood movies, but it could work if done decades ago. Over the years, the coming pieces will likely go on their orbit and will no longer pose a threat to Earth.
But as promised. research Published in the Acta Astronautica show, the barrier strategy can even be Work on asteroids that are only a few months away from hitting the Earth. This is very good news, as it shows that we have the opportunity to fight the oncoming asteroid that suddenly and unexpectedly appears on our radar.
An atomic bomb or other powerful device could be used to destroy an asteroid, this is hardly a revelation. The big question in the new study was. The fate of the resulting pieces. It seemed that the oncoming debris would continue their work. Journey to The earth is probably making a bad situation worse. Scientists led by physicist Patrick King from the Johns Hopkins University Applied Physics Laboratory conducted simulations to study the new paper.Trends in orbit of disintegration from a small asteroid.
The study served as a King’s PhD thesis while Lawrence Livermore was a student at the National Laboratory (LLNL). King’s colleague Michael Owens also developed a software program at LLNL called Spiral, which modeled the long-term effects of nuclear disruption on a fictitious asteroid. The sphere traced the pieces from the moment of the explosion and the cloud continued to move in pieces. the sun. The simulation even took into account the gravitational effects of the bodies of other planets.
The simulation showed the effects of a megaton bomb measuring 328 feet (100 meters) longAsteroid scientists have simulated many times, The asteroid travels in five different orbits.
The results were very encouraging. For all asteroids, nuclear strikes significantly reduced the amount of material that preceded the impact months ago.
“Simply put, for a 100-meter object that is estimated to have hit the ground, if we use strong nuclear disruption techniques at least a month before the impact, we would be 99 percent or more affected. They can stop hitting the ground on a large scale. ” Explained in the email.
Some of the simulation results were particularly good, including scenarios that have faded. When it failed two months ago, a planet lost 99.9 percent of its mass. The results of the large asteroid were not so impressive. But still extraordinarily good, if 99 of their total mass is missing from the ground if nosed six months before the effect.
Of course, these results were derived from simulations, so the new results should be viewed with caution.
Addressing the study’s limitations, King noted, “We have made several estimates to make the study possible, but we believe that we have captured the physics necessary for general observations about nuclear disruption.” “Most of our uncertainty is due to our inherent uncertainty in the characteristics of the asteroid itself. We definitely need to support more space missions to investigate their characteristics in more detail.
When asked if an asteroid could break into several smaller pieces? To make matters worse, King said, this is one of the trade-offs that must be made when deciding whether to use disruption techniques.
“By making several pieces instead of one effective, it is possible that we increase the risk,” he wrote. “On the other hand, the barrier has its advantages, and the barrier can be successful where there is no defect. It’s all part of the assessment process of what technique to use. Encouragingly, King said, For scenarios suggested in the study, this may be possible – but there is no guarantee that if we minimize something, the disruption technique will “significantly reduce the scale of destruction.” “Two weeks before the effect.”
ultimately , As the scientists wrote in their article: “We have learned that disruption can be a very effective planetary defense strategy for a very long time. … Interventions, and should be considered an effective backup strategy, should be preferred to methods that require a long warning time to fail.
We are not ready to make anyone a nuclear power. Asteroid, but we are taking the necessary steps to get on the planets. DefendsNASA is on its way to deployment. Dart. Mission, It is set to launch on November 24 Hoping to change the speed and velocity of the asteroid. The conceptual mission could pave the way for more meaningful and potentially life-saving measures.Especially in case of launching a kinetic impactor in an emergency.