The fireball dragged its long tail of fireworks across the sky from south to north.

A huge flame rose on the horizon, the earth began to tremble, and more than a dozen square kilometers of primeval forest were knocked down by the shock wave.

After the explosion, the sky was shrouded in an eerie orange color.

The place where the fireball hit left a funnel-shaped crater.

The potholes accumulate to form a lake.

This lake is a very regular circular lake that Chen Rui saw when he looked down on the top of the mountain yesterday.

And the fireballs depicted on the petroglyphs of the ancestors of the indigenous people are meteorites.

The fireball and the long pyrotechnic tail dragged by the fireball are because the meteorite enters the earth's atmosphere and burns under the action of high-speed and violent friction with the atmospheric air, forming a fireball and a long pyrotechnic tail dragged by the fireball.

Most of these meteorites come from the asteroid belt between Mars and Jupiter, and a small part from the Moon and Mars.

Most meteorites burn and disintegrate when they enter the atmosphere, but about 500 meteorites as small as a basketball still fall to the ground every year.

A very small number of meteorites are large enough to fall to the ground, because the powerful kinetic energy produced by the mass output of more than ten kilograms or even tons of bullets at the time of impact has knocked out a huge impact crater.

And the petroglyphs of the ancestors of the indigenous people recorded a long time ago meteorites hitting the ground.

As a result, a huge flame rose on the horizon, the earth trembled, and more than a dozen square kilometers of primeval forest near the center of the impact were knocked down by the shock wave, and the impact left a crater with a diameter of 2, 300 meters.

It can be said that the size of this meteorite is very huge.

Because it is located deep in the Amazon rainforest, it is inaccessible, and the local indigenous people do not know the value of meteorites, and may think that they are just ordinary stones, or they may subconsciously have a fear of the lake generated by the 'wrath of the gods', and do not dare to approach the lake or salvage meteorites from the lake.

Therefore, Chen Rui deduced that the meteorite was likely to remain at the bottom of the lake.

Chen Rui decided to dive into the lake to salvage this very valuable meteorite.

The value of meteorites lies in the fact that they are 'cheap and good' scientific samples.

Imagine the cost of a spaceship to retrieve samples from other planets, which is amazingly expensive!

The Apollo spacecraft landed on the moon at a cost of hundreds of millions of dollars, only collecting more than 300 kilograms of samples from the front of the moon on the surface of the moon, and still could not obtain samples from the far side of the moon that could not be seen from the surface of the earth.

For example, among the meteorites found in the Antarctic continent, 9 meteorite samples came from the Moon, and more precious is that 8 lunar meteorites came from the far side of the Moon.

Collecting samples on Mars is more difficult and expensive than collecting samples on the Moon.

These meteorites carry the original information of celestial bodies, which is of great significance for human research in high-energy physics, astronomical evolution, geochemistry, and the origin of life.

For example, humans have found a large amount of organic matter such as ammonia, nucleic acids, fatty acids, pigments and 11 kinds of amino acids in meteorites with high carbon content, and people have speculated that the origin of life on earth has a considerable relationship with meteorites, and life on earth is the spread of life species to earth by meteorites.

About 25% of the magnetite crystal structure of the Martian meteorite 'Allen-Hills 84001' was formed by bacteria, a discovery that provides the strongest evidence that life existed on Mars.

Meteorites not only have very important scientific research value, but also have a very high collection value.

The scarcity of meteorites and the hype in the market have prompted the price of their collections to soar from a few dollars a pound to a huge number comparable to diamonds.

At present, the most expensive meteorites in the world are meteorites from the Moon and Mars, about 1000 US dollars, or 6200+ RMB per gram. The market price of the second stone iron meteorite is in the tens to two or three hundred dollars per gram. Even the cheapest desert meteorite, with a high weathering range, costs 1 yuan per gram, and if there are many witnesses when it falls, the value rises dozens of times, reaching 40 to 50 yuan per gram.

The high price of meteorites has also given rise to a meteorite collecting craze.

In recent years, the number of meteorite searchers has also increased rapidly, and many people will spend 1~2000 US dollars to search for up to several weeks in one place. Some people will not hesitate to spend tens of thousands of dollars to search for a place where a large number of meteorites may be stored, hoping to make a heavy discovery and make a lot of money.

Chen Rui stayed with the indigenous tribe for a week.

During the week, Chen Rui taught many of the indigenous tribes about relatively advanced production techniques.

For example, the indigenous tribes were taught how to use the clay commonly found in the mountains to burn pottery, to make salt from mineral salt, to process and tann animal skins, to use simple tools to build strong and durable houses that can shelter from the wind and rain, how to make zuò tools and how to use them, and so on.

In the end, Chen Rui left a little of the various medicines stored in the space for himself, and gave the rest to the aborigines, and explained how the aborigines used these medicines.

Compared with Chen Rui, the indigenous people living in the rainforest with a harsh environment and a very high rate of disease infection need these medicines more, perhaps a bottle of common cold medicine and penicillin can save a person's life.

Chen Rui left the indigenous tribe, followed by Black Spot.

Come to the lake.

Chen Rui left the black spot on the shore of the lake and let it find food on its own.

Chen Rui jumped into the lake, performed a split-water decision, and dived to the bottom of the lake.

The bottom of the lake is 3 to 40 meters deep, and only a little light can be seen.

Without much effort, Chen Rui found a meteorite buried in the silt in the middle of the lake.

Bring the meteorite into space, then return to shore and enter space, which is where there is time to view the meteorite.

The meteorite is very large, round, without edges and corners, and the surface is covered with pits of different sizes and depths, and the knocking sound is clanging.

According to Chen Rui's analysis of the fracture surface, specific gravity, and magnetic strength of the meteorite, this meteorite is a stony meteorite, and its main component is silicate.

Chen Rui took another tape measure from the space and measured the size of the meteorite.

The meteorite is 3.11 meters long, 2.21 meters wide, 1.57 meters high, and can weigh 40+ tons.

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