The Technology Tree of Xueba

On May 1, 2029, the weather was cloudy. Zhou Yu and Spark Science and Technology scientists had already dressed up in space suits and they were about to land on the Endeavour spacecraft.

Zhou Yu comforted Chen Jin, who said goodbye to him at the door of the spacecraft Endeavour: "Xiao Jin, rest assured!

The safety performance of the current spacecraft is very good. The spacecraft has withstood tens of thousands of missions, and it has not had an accident.

The safety performance of the spacecraft is more advanced than that of high-speed trains, and it is far beyond the safety of old-time cars.

I go on scientific research missions. I don't live in space. I will return for a few days or as long as a month or two. "

"Zhou Yu, you must come back safely, my children and I are waiting for you at home." Chen Jinqiang put up tears and waved farewell to Zhou Yu.

"Start boarding." Zhou Yu commanded.

Spark science scientists, spacecraft basic staff, and logisticians began boarding the ship in batches.

The Endeavour spacecraft began to levitate in the air, accelerated rapidly with the help of the sun's gravity, and quickly disappeared into earth space.

The Endeavour spacecraft is a scientific research vessel. Most of the main equipment it carries is used for scientific research activities.

Zhou Yu held a meeting inside Endeavour.

"Our goal this time is the asteroid belt. We will first go to the center of the asteroid belt to inspect the only dwarf planet Ceres there.

After inspecting Ceres, collect some resources and specimens of the asteroid belt, and complete the preliminary exploration of the asteroid. "

Zhou Yu's target this time is the asteroid belt, which is an airspace with relatively concentrated resources in the solar system.

Most of the resources of the asteroid belt still exist in the form of asteroids. They are very easy to screen, and it is not difficult to smelt these resource-rich asteroids.

The Endeavour spacecraft flew out of Earth's orbit, and with the gravitational pull of the Sun and Jupiter, began to gallop towards the asteroid belt.

Scientists are watching the data on the asteroid belt.

The asteroid belt is a dense area of ​​asteroids in the solar system between Mars and Jupiter.

The asteroid belt is the most dense area of ​​asteroids, accounting for 98.5% of the number of asteroids in the solar system. It is estimated that there are up to 500,000. This area is therefore called the main belt.

It is within the space area of ​​about 2.17 ～ 3.64 astronomical units from the sun (an astronomical unit is equal to 149597870700 meters, which is about the distance between the sun and the earth).

More than 500,000 asteroids have gathered to form an asteroid belt.

So many asteroids can be condensed in the asteroid belt. In addition to the gravitational effects of the sun, Jupiter's gravity plays a greater role.

The asteroid belt is formed by a group of stars (precursors smaller than the planet) in the primitive solar nebula.

However, the influence of Jupiter's gravitational resonance prevented these planets from forming planets, causing many planets to collide with each other and form many debris and debris.

The three largest asteroids in the asteroid belt are Mind, Mars, and Vesta, all with an average diameter of more than 400 kilometers.

There is only one dwarf planet in the main belt, Ceres, with a diameter of about 950 kilometers.

The remaining asteroids are smaller, and some are even the size of dust.

The material of the asteroid belt is very thin. The asteroids in the main belt are divided into three types according to their spectrum and main forms, carbonaceous, silicate and metal.

In addition, collisions between asteroids may form asteroid families with similar orbital characteristics and color. These collisions are also the main source of dust that generates ecliptic light.

Asteroids come with four of the most common small planetary families. They are carbonaceous, silicate and metal asteroids, and comet asteroids.

Most of the asteroid belts are carbonaceous and silicate asteroids.

On the outer edge of the asteroid belt, near Jupiter's orbit, are mainly carbonaceous asteroids, which account for more than 75% of the total.

Compared to other asteroids, the color is reddish and the albedo is very low. Their surface composition is similar to that of carbon granite meteorites. Their chemical composition and spectral characteristics are in the early state of the solar system, but they lack some light and volatile substances such as ice.

Near the inside, 2.5 astronomical units from the sun, silicate asteroids are more common.

The spectrum shows that the surface contains silicate and some metals, but the composition of carbonaceous compounds is not obvious.

This indicates that they are significantly different from the components of the original solar system, which may result in the differentiation due to the early melting mechanism of the solar system.

Relative to carbonaceous asteroids, such asteroids have high reflectivity. About 17% of the entire population of the asteroid belt.

There is also a third type of asteroid, which accounts for about 10% of the total metal asteroids.

Their spectra contain iron-nickel-like lines that appear white or slightly red without the characteristics of an absorption line.

Metal asteroids are speculated to be formed by a devastating impact with iron-nickel as the main parent. In the main belt, metallic asteroids are mainly distributed in orbits with a half-length diameter of 2.7 astronomical units.

Metal asteroids are people's favorite asteroids. They are simply moving veins.

The Endeavour spacecraft is very fast, and after only half a month, they have approached the edge of the asteroid belt.

The Endeavour spacecraft has been able to clearly receive and receive the satellites placed in the asteroid belt earlier, and transmitted the signals back.

The high-definition camera on the satellite clearly captures the true face of the asteroid.

Many asteroids have a rugged surface, full of large and small impact craters, and large boulders of varying sizes on the surface.

Like the Earth, they also have many grooves, rifts and fissures on the asteroid.

Unlike most grooves and faults on the earth, the causes of cracks are different. They are formed by severe collisions.

Satellites arranged in the asteroid belt, they even passed back a wonderful video.

In the center of the asteroid belt, due to the gravitational disturbance of Jupiter, a carbonaceous asteroid collided with a metallic asteroid.

The two little stars collided together to form a slightly larger asteroid, and a lot of material broke out and floated in the universe.

This is a very common scene of the asteroid belt ~ www.NovelMTL.com ~ The asteroid belt is mainly attracted by the sun and Jupiter, and asteroids often collide.

Different asteroids will have different results.

Most of the collision results are the two asteroids crushing to form more asteroids.

With only a small number of collisions, it can allow two asteroids to fuse with each other to form a larger asteroid.

The Endeavour spacecraft soon flew into the asteroid belt, and it flexibly shuttled between the asteroids.

Don't look at the number of asteroids in the asteroid belt, but it also covers a very wide area, and there is a large gap between the asteroids.

Some asteroids with small gaps have smaller volumes.

The Endeavour spacecraft tossed around to avoid larger asteroids, and even small asteroids hitting the spacecraft would not cause damage to the Endeavour.

The spacecraft moved quickly in the direction of Ceres.