The mysterious Tunguska event for more than a century

A big explosion occurred in the Tunguska River area, Russia on June 30, 1908, which is still a mystery.

More than 7 am on June 30, 1908, a blazing explosion in the sky swept away 80 million trees and countless animals over an area of ​​more than 2,000km² at the Tunguska River, Russia. So far the cause of this event is still a mystery.

When scientists arrived at Tunguska, they found bare stems without leaves, they were as straight and smooth as electric poles, it seemed that the explosion only tore the branches and leaves, not destroying the trunk. If a bomb is detonated on a tree trunk, it will destroy the entire trunk, not just aiming at the branches and leaves as if it was pre-calculated.

The trunk was bare after the explosion

It seems that this is partly the reason that the local people believe that they have been punished, or as some people think it is an alien attack. However, scientists can explain this.The impact of mechanical waves is so fast that the branches and leaves (weaker) are broken before the impact forces break the trunk. This was verified after the 37-year Tunguska event, when the first atomic bomb exploded on Japan's Hiroshima city

The scenario for this event is widely believed to be the impact of a comet or asteroid with Earth. But it is worth mentioning that on the Tunguska River, even in the center of the explosion there are no traces of collisions or remnants of comets or asteroids.

Scientists have come to assume that the comet has not collided with the ground, it has rushed through the Earth's atmosphere at a speed of more than 50,000 km / hour, friction with hot air, its crust up to At 44,500 degrees Fahrenheit. At a height of 8.5 km, this temperature causes the comet / meteor to burn and decompose itself, it explodes in the air with devastation equivalent to 185 atomic bombs exploding in Hiroshima.

That's why people who witnessed the sky light up before everything is destroyed, and so there are no traces of the impact on the ground. If this scenario is correct, it still seems lucky that the object has exploded in the air because of its speed and size if it hits the ground, it is certain that what it leaves will be even more formidable. much and we can hardly imagine the extent of the damage it caused not only to Russia but also to the whole world.

However, this scenario still has a problem that it does not solve thoroughly the failure to find the fragments of the celestial body because it is hard to believe that such a massive rock could burn in the air without a debris remains.

Location of the explosion

In 2007, a group of scientists arrived at Lake Cheko, a small lake about 8km north of the center of the Tunguska explosion. They thought that a fragment of an object that exploded with a size of about 1 meter fell into this lake. The results of the search and analysis show that under the lake there is a cone-shaped concave and a sediment layer at the bottom of the lake that is only about 100 years old, coinciding with the time of the Tunguska explosion, it seems there was a collision as the hypothesis suggested. the last remaining problem was still not finding any debris left at the bottom of Lake Cheko. Only a dent and age of silt is not enough to confirm that it is related to the Tunguska aerial explosion.

Another scenario proposed by some scientists is an explosion only slightly above the ground, the altitude is very small and may not be derived from comets or asteroids. In the 50s and 60s of the 20th century, the Soviet Union tested nuclear explosions in the forest and obtained similar results with the stems and condition of the ground. It is assumed that there may be some event in the density of some chemicals that created an explosion in the Tunguska River. However, the exact mechanism for it is still not specifically described and no evidence has been found.

So we see the Tunguska explosion is like a case in our society that investigators can imagine many scenarios. All scripts seem reasonable, but there is no way to find the final evidence to prove that scenario. This makes the Tunguska event even more mysterious than before.

Although most scientists in particular and public opinion generally believe in the scenario of a comet or asteroid, the lack of final evidence still makes mankind's curiosity with This event cannot be stopped, even the hypothesis of the attack of aliens has been portrayed by some imaginative people, describing it as an explosion caused by a weapon of destruction. Especially, there is no trace.

Many newspapers for years have been constantly giving information about the study of this event, even in the last few years many newspapers have reported that the mystery of this event has been solved especially since after Research at Lake Cheko.

But in fact, after more than 100 years, questions about the cause of this special event cannot end, not only because of its mystery but also because it relates to the safety of their humanity. me.