Tuesday , January 25 2022

Studies show that nuclear missiles can stop the impact of asteroids



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Extreme levels of flood danger were announced in at least two places. One solution that could use nuclear weapons or similar destructive methods is common in science-fiction movies, but has angered many scientists because of the potential for significant damage to the asteroid’s fragments.

But according to new research, this may not be as harmful as previously thought.

The study was published in the journal Academic Astronomy Act Patrick King, of the Applied Physics Laboratory at Johns Hopkins University, was commissioned to study parts of an asteroid destroyed by a nuclear missile or similar destructive object.

The study used a simulation program called a sphere designed to find parts of an asteroid destroyed by such a process known as an asteroid barrier.

An asteroid shows an artist crashing into the Earth during an event that scientists believe led to the extinction of dinosaurs about 65 million years ago in the Caribbean and Cretaceous periods of Earth's geological history.  (Thanks: Owners)An asteroid shows an artist crashing into the Earth during an event that scientists believe led to the extinction of dinosaurs about 65 million years ago in the Caribbean and Cretaceous periods of Earth’s geological history. (Thanks: Owners)

The simulation used was a one-megaton model of a nuclear bomb exploding on the surface of a 100-meter-long asteroid, causing various orbits, the sun, and gravity to be caused by other large objects in space. It was also assumed that the asteroid was bombed a few months before the planned impact on Earth.

The simulations gave the researchers the promised results. After the destruction of some asteroids, more than 99% of the fragments missed Earth.

This alleviates one of the main concerns about disruption: damage from fragments.

“Simply put, when we expect a 100-meter object to fall to Earth, if we use strong nuclear intercept technology at least a month before the impact, we can prevent 99% or more of its impact from hitting the Earth,” the Gizmodo news service said. said.

The one-month feature is also significantly important. During an exercise earlier this year, NASA’s Jet Propulsion Laboratory Center near Earth activated its biennial impact simulation, this time focusing on the hypothetical asteroid 2021 PDC, which was designed to detect the impact of the planet six months earlier. Was. Was remote, and participants were forced to find some sort of solution to the effect.

Because of the risk of asteroid impact, NASA scientists and other agencies around the world have studied and listed NEOs such as asteroids, some of which are close to the planet and have been designated as Dangerous Asteroids (PHA). Since many of these can be seen from afar, it may not take months for an incoming asteroid to see humanity, but the possibility remains large, especially since it is difficult to fully predict many aspects. And even a small one can cause significant damage.

For comparison, the last known asteroid impact occurred on February 15, 2013, when an asteroid exploded in the sky over the city of Chelyabinsk, Russia. The asteroid is only 17 meters wide and caused no casualties, but the shock wave from the blast shattered the windows of six different Russian cities and left 1,500 people in need of medical treatment.

One way to stop an asteroid’s impact is to use deflection, which means launching something to slightly change the asteroid’s trajectory. The most notable of these efforts is the Dual Asteroid Reversal Test (DART) mission, due to be launched in November, as a result of efforts by NASA and the Applied Physics Laboratory.

According to the layman, it means that an asteroid strikes fast enough to change its direction one hundred percent with a rocket.

However, this method has its drawbacks, especially over time. A lot of time and resources have been spent on developing and launching the spacecraft used in Operation Dart. Under the influence of an asteroid that appears very instantaneously, such a time can be an unbearable luxury for the Earth.

Airbus proposed another option in July 2021, which was to essentially hijack TV satellites and reuse them. For this Receptor deviation medium.

The science behind this method seems good, but despite its shortcomings, it looks like the asteroid could be diverted a considerable distance from the planet. It hypothesized that it would take more than six months.

On the contrary, interruptions can be made at short notice. However, it also has its drawbacks.

King told Gismodo, “Instead of creating one effect, we can multiply the threat by creating several pieces. “On the other hand, obstacles have their advantages, and obstacles can succeed where there is no deviation. All of this is part of the technology evaluation process to be used. ”

However, it is possible to at least minimize the threat of catastrophic destruction that could destroy cities or worsen the situation to a lesser degree. Therefore, the study states that “interruptions may be too late, but we find that they can be a very successful planetary defense strategy, and failures that require a long warning period should be considered as an effective backup strategy if they are to intervene.”

However, even stopping an asteroid that has been around for a month is sometimes not enough.

NASA estimates that the Earth will not be affected by an asteroid for the next 100 years, but this is especially true for asteroids that come from the “front”, meaning the Earth and the Sun. Asteroids backing away from the Sun and coming “back” to Earth are still difficult to find.

On September 16, the 2021 SG asteroid flew across the Earth at a magnitude of 42 to 94 meters, and scientists never even knew it existed, but flew past the Earth until the next day.

This may be smaller than the asteroid in the simulation world dosage, but it was much larger than the asteroid that exploded above the city of Chelyabinsk, and therefore could have caused damage if it had been affected.



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