Ah, will the Pofis asteroid cause harm to China

Impact speed: 210,000 km/h, km/s.

Impact energy: 100 million tons of TNT explosives.

Killing Effect: 1Optical radiation:

When an asteroid hits the surface, it instantly generates a high temperature of 300,000 degrees Celsius, creating a large fireball with a diameter of 10 kilometers. Everything within a radius of 15 km from the point of impact will be vaporized, 90% of objects within a radius of 30 km will be melted by hot flames, 70% of objects within a radius of 60 km will be incinerated by the flames, and 50% of objects will still be burned within a radius of 90 km. The radius of the impact point is 160 kilometers, and the area with a diameter of 320 kilometers has become a fire zone, and the closer to the impact point, the higher the temperature and the more intense the fire.

2.High-pressure shock wave and air wave: An asteroid impact will produce a shock wave with a high air pressure that will be driven at a speed far greater than the speed of sound, destroying everything within a radius of 300 kilometers and a diameter of 600 kilometers.

The closer you are to the point of impact, the stronger the shock wave.

3.Meteorite projectiles and debris smoke and dust flow: due to the small number of meteorite projectiles produced and the mass is not large, but the impact of debris smoke flow is still very large, debris smoke and dust with a high temperature of 800 degrees Celsius, at a speed of 200 kilometers per hour to expand outward, about the impact point radius of 200 kilometers, the diameter of 400 kilometers of the area will be covered by meteorite debris smoke.

4.**: The impact of the Apophis meteorite on the ground will produce a large **, so the impact will be accompanied by the tremor of the landslide and ground crack.

5.Tsunami: When the Apophis meteorite hits the sea, it causes a 3-kilometer splash, and the waves remain 200 meters high even when they reach 2,000 kilometers away.

6.Electromagnetic pulse: Electrical appliances in areas 5,000 km away from the point of impact and 10,000 km in diameter are damaged to varying degrees.

7.Impact Smoke: The smoke from the impact obscures the light, enough to cause no summer for 2 years.

The crater is 10 km long, 7 km wide and 5 km deep.

The impact mushroom cloud is 76 km high, 420 km wide at the top, and 120 km wide at the stem.

It could fall on Mexico or nearby areas, if it fell on land it might have little impact on China, and if it fell into Mexico along the waters of the Pacific Ocean, the tsunami would cause a tsunami on China's coastal cities.

Extremely dangerous. Wherever it falls, it will have a big impact on the global climate in a few years.

No, the 2014 observations have ruled out the possibility of hitting the Earth. In 2036, perigee will be more than 20 million kilometers away and will not have any perceptible impact on Earth.

News in 2014 about ruling out the possibility of its impact.

If you need first-hand information, you can go to the wikipedia Apophis entry.

So far, humanity has escaped collective extinction for 200,000 years, but if the world lasts for an eternity, so will humanity. Even if our generation is not annihilated, there will come a time when our descendants will have to pay the price, and it may be sooner than we expected, on April 13, 2029.

This is a dangerous date for the asteroid Apophis, a near-Earth object discovered by humans in 2004, who seems very likely to hit Earth, with a higher chance of actually throwing two dice at the same time than two dice throwing 6 points at the same time.

Apophis' high-velocity bullet, about the width of 3 or 4 football fields, would kill millions of people if it hit a densely populated area, and the force of the impact would destroy an area hundreds of kilometers wide, and he expected to be very close to Earth in 2029, but to see how close the asteroid was to Earth at that time, it was possible to hit Earth when he came back in seven years.

In fact, scientists have calculated that the Earth will miss the Apophis asteroid, which is only 18,600 miles apart, which sounds very far away, but this distance is closer than the distance between the satellite and the Earth, but there are still hundreds of thousands of near-Earth objects, and I am afraid that sooner or later there will be a way to return the evolutionary history of mankind to the original point.

1. We can use rockets to push the asteroid away from its original orbit and prevent it from hitting the Earth. 2. Archimedes once burned the enemy ship with a concave mirror to reflect the sun's rays, and we can launch a laser emitter to heat the asteroid and make it evaporate partially, and the vapor after evaporation will push the asteroid off the orbit to prevent it from hitting the earth. But we will have to see if the asteroid "Apophis" can pass through a place called in April 2029; The area of the "gravity keyhole" will crash into the Earth if it passes through it.

Apophis is now flying at a speed of 45,000 per second, and if it hits the earth, the speed will reach 120,000 per second, and the weight of 20 million tons is equivalent to the total energy released by the global nuclear ** at such a huge impact speed, and 80% of 90% of the species on the earth will be extinct.

Scientists from all over the world have now begun to discuss how to solve the planetary crisis, and it is impossible to blow it up, and now people in the United States are discussing pulling Apophis out of the gravitational pull of the earth after 2029.

You worry a lot, the chance of loading the earth is 1 in 100,000, and the chance of hitting China is even smaller. In addition, even if you have to hit it, you can solve it if you worry about it? In addition, this asteroid is only 400 meters in diameter, and even if it hits, it will only cause millions of casualties, and if it falls into the Pacific Ocean, it will have even less impact.

But the United States and Russia, two Cold War powers, have signed a contract to build space nuclear missile technology, so don't worry too much, but the United States and Russia, two Cold War powers, have signed a contract to build space nuclear missile technology, so don't worry too much.

This asteroid will not hit China, well, the Facebook asteroid will have a collision with the Earth in 2029, and the gravity of the Earth can change the planet's orbit until 2036 It will hit the Americas close to Europe, both of which are dangerous, and it could also go directly into the Pacific Ocean, triggering a devastating tsunami that will affect all parts of Europe, and these two places may disappear from the face of the earth!

On the Chinese side, I just saw some foreigners who seem to have come from Europe yesterday, and it seems that after hearing the news, they immediately moved here. But what, if the planet hits China, I can tell you, run as soon as possible! ヘ(

I don't agree, because if it hits the Pacific Ocean, it will trigger a global tsunami, which means a global catastrophe

I think it should be, and it can only hit part of China.

There will be no problem if you hit it, just move the track.

In 2029, an asteroid named Apophis may collide with Earth under certain circumstances. This was stated by Boris Shustov, director of the Institute of Astronomy of the Russian Academy of Sciences, at the international forum "Cosmos: Science and Topics for the 21st Century", held on October 1.

"In 2004, astronomers discovered an asteroid named 'Apophis', which is expected to pass over 10,000 kilometers above Earth in 2029," he said. The error of the asteroid's orbit is about 3,000 kilometers.

If it collides with the Earth, then the consequences of the Tunguska meteorite will be greater than the consequences of the Tunguska meteorite". Shustov said that the asteroid must be detected early and a small spacecraft must be launched, which will be put into the asteroid flight orbit, and after landing on the asteroid, the spacecraft engine will be activated to generate enough reaction force to push the asteroid away from its intended orbit so that it no longer poses a threat to Earth. He added that "now that we have mastered such technology, a few tens of kilograms of spacecraft fuel will be enough to complete the task".

At the same time, he pointed out that "some impatient scholars have proposed to blow up the asteroid, which will have extremely unpredictable consequences." The best solution for now is to take a more cautious approach."

It is understood that in recent years, the United States, Britain, France, Germany, Japan, Russia and other countries have jointly established an international monitoring network for near-Earth objects, and more than 1,640 potentially threatening near-Earth asteroids have been discovered. Among them, astronomers are most concerned about a near-Earth asteroid called "Apophis".

According to the American "Discovery Channel"**: Scientists discovered in 2004 that the asteroid Apophis is a threat to the Earth, and its size is large enough to wipe out life on Earth. The Apophis asteroid was discovered in 2012 and is more than two football fields wide and 400 meters wide.

It has attracted the attention of scientists in recent years due to the possibility of impacting the Earth in the relatively recent future. Scientists once thought that if"Apophis"An asteroid impact on Earth will not cause global destruction, but it may cause a serious regional catastrophe.

The United Nations Committee on the Peaceful Uses of Outer Space (COSP) convenes an annual meeting of the Scientific and Technical Group, which includes a special discussion on the topic of NEOs, summarizes the observation and early warning of NEOs in the current year, and guides follow-up observation and research plans. As a representative of China's NEO researchers, Zhao Haibin, chief researcher of the NEO Telescope Group of the Purple Mountain Observatory, has been invited to participate in the conference for three consecutive years.

Humanity's ability to protect against asteroids is improving. Zhao Haibin said that on the basis of monitoring potential threat asteroids and effectively calculating their orbits, once an asteroid or comet with a serious threat to the earth is found, a rocket or spacecraft carrying a device can be launched to detonate near the asteroid to change its speed and direction, so as to ensure the safety of the earth.

An asteroid named Apophis will pass by the Earth in 2015. But in 2036 it will travel 100 kilometers above the Earth and collide with the Earth. However, as soon as it flies close to the Earth, scientists can launch an intercontinental nuclear bomb (an intercontinental nuclear bomb is a type of intercontinental missile that can fly to the Earth's ozone layer to intercept low-flying enemy satellites, and occasionally comets and meteorites) to smash it into pieces or change its orbit to prevent it from crashing into the Earth.

If you want to destroy it before it comes, it will be difficult, you have to consider how to issue a command (now the transmission of information is using electromagnetic waves, the speed is not fast, if "Apophis" is near the moon, to destroy it, it will take about 30 seconds to issue a command, if it is near Mars, it will take a few minutes, issue a command, "Apophis" will run, it will not be able to destroy it) and fuel problems.

Apophis is about 400 meters in diameter, and its specific composition has not yet been determined, and it will not work to destroy an asteroid similar to Apophis, and other technical issues will not be discussed. Suppose an asteroid is blown up with a nuclear bomb, first of all, gravity will come into play and put some of the pieces back together, and the threat to humanity will still exist; Second, it does not change the asteroid's orbit (because the asteroid is already very close to Earth), but rather turns one trouble into thousands of pieces (the countless debris of various sizes that are created when the asteroid is blown up). And now Apophis for the earth impact probability is only four in a million, the specific need to wait until 2029 to see whether Apophis will pass the "gravity keyhole", if it really passes, it is expected to hit the earth in April 2036, of course, the probability of passing the gravity keyhole is also very small, as early as 2006 Apophis in the "Doolin danger level" downgraded from level 4 to level 0, that is, according to the current observation, Apophis almost does not pose a threat to the earth.

Don't worry too much about it ...

It can't be destroyed, it's far away from the earth now! There is also a probability of impact of one in 10 million, according to the decimal place, there is no place from the tenth to the millionth place, so there is no need to worry about it.

A Soviet cosmonaut retired and studied Apophis, believing that it would pass by Earth in 2027 and return in 2036. Since the Destroyer is more than 700 miles in diameter, the missile may not be able to blow it up!

Scientists have calculated the asteroid's orbit and found that Apophis will hit the Earth in 2036, which will be much more destructive than the Indian Ocean tsunami. On April 13, 2029, millions of people will be outside, looking up and rejoicing in their good fortune.

Because, on that day, "Apophis" will pass the earth at an altitude of 30,000 kilometers. But don't be too happy, when the asteroid Apophis passes by the Earth in 2029, its orbit will change due to the Earth's gravitational pull, a change that will cause it to turn around and collide with the Earth in seven years. The impact velocity of kilometers per second will have a huge destructive force:

enough to make the US state of Texas or two European countries disappear; If it lands in the ocean, it will cause a devastating tsunami, even more violent than the 2004 Indian Ocean tsunami. In such a devastating impact, any living thing on Earth is in a catastrophe. At the "Symposium on Asteroid Security" held in Russia, astronomers have made a model, assuming that "Apophis" hitting the Pacific Ocean will set off a 200-meter-high wave, and the dust kicked up by its shock wave will cover most of the earth, where animals, plants and humans will die because of the severe cold and the destruction of living space.