The two space shuttles set sail one after another, and in the following more than a month, the media paid attention to the long-distance flying vehicles day and night, from the history of the aircraft to the modification technology, from the equipment carried to the identity of the crew, and the two space shuttles were comprehensively reported in great detail, and the real-time speed and position were the top priority of the report, almost as daily as the weather forecast. Pen & Fun & Pavilion www.biquge.info

In the interval between the reports, major TV stations invariably inserted the basic knowledge of astronomy, and hundreds of millions of human beings seriously understood the sky above them for the first time.

Although the electromagnetic thruster is more suitable for long-distance voyages than traditional thrusters, the thrust of the electromagnetic thruster is not high, but it does not require chemical fuel, and after 22 days of flight, the Earth finally arrived at the predetermined launch position more than 2.7 million kilometers away from the Earth, which is more than nine times the distance between the Earth and the Moon.

In the minds of ordinary people, the launch position of the two spacecraft should be a certain point in the universe, or a certain position relative to the earth, but in fact, the spacecraft that arrived at the designated place was still speeding up.

As soon as the Earth is in position, it begins to adjust its position and aim its electromagnetic cannon at space in the distance, rather than at the oncoming asteroid swarm!

The asteroid group is flying to the earth at a high speed of more than 30 million kilometers away, and the flight distance is as high as 1.38 million kilometers every day, and the speed of the electromagnetic cannon shells is far lower than the flight speed of the asteroid.

Attention, it's close and not hit!

In fact, several major powers on the ground and astronauts in the air know very well that no matter how accurate the electromagnetic cannon is, in space, where the distance is calculated by tens of millions of kilometers, the dispersion area of ammunition will be very large, and even all shells may miss.

Not to mention an asteroid group, even if it hits the earth 2.7 million kilometers away, it is difficult to say how many shells can hit, and the reason why ordinary projectiles are replaced with missiles is to take into account the problem of hitting accuracy.

These missiles are all special models that were urgently produced, the body of the missile is extremely short, and the fuel carried is also very small, and the warhead installed in the missile has been specially designed to reach the ultra-high acceleration of the electromagnetic cannon during the launch, and it will not be accidentally exploded during the launch process.

Several of these missiles do not carry nuclear warheads, but carry the instruments and equipment needed to detonate them.

The space on the Earth was limited, and there were only more than 300 missiles on board, so the two astronauts used electromagnetic cannons to launch the missiles on the spacecraft one by one in a few days, and each launch, they had to carefully adjust the shooting angle.

When all the ammunition was empty, the speed of the spacecraft also decreased greatly due to recoil, but due to inertia, the spacecraft still flew head-on towards the asteroid swarm, (don't tell me that the electromagnetic cannon has no recoil, and you don't understand it.) ）

Of course, the spacecraft does not have to slow down and return home, if the position of Venus is suitable, it can also fly to Venus and use the gravitational pull of Venus to turn around and return home.

It is not difficult for astronauts to do this, but if they can't, they can also seek support from the ground, and the relevant data will be calculated from the ground, and the astronauts will only be responsible for implementation.

Then Humanity took position and also launched more than 200 specially made missiles at the asteroid group.

The two groups of missiles fly towards the asteroid swarm in the universe, like two swarms of moths swooping down on a campfire, but the position of these two groups of moths is under the monitoring of the earth at all times, and the ground has to fine-tune the position of the missile swarm every day to ensure that the missile swarm continues to fly towards the asteroid swarm.

The inability to adjust the direction of ordinary warheads after launch, and the fact that the universe is full of various unpredictable interference factors, are also important reasons why countries abandon ordinary warheads and switch to missiles, even if they have to pay a huge cost for this.

On the eighth day after the missile launch, the first wave of missiles was about to encounter the oncoming asteroid swarm, at this time the asteroid swarm still maintained a high speed of 16 kilometers per second, and the missile swarm flew at a speed of 11 kilometers per second, with a relative speed of 27 kilometers per second.

Although the relative speed of the two sides is fast, it is not faster than the detection speed of the radar, and the special missiles in the missile group have been turned on in advance under the control of the earth, and the radar waves released quickly determine the direction of the asteroid group, and release a delayed detonation signal to other missiles.

The asteroid group is speeding forward, the first missile launched by the Earth is about to contact the asteroid group, but it receives a detonation signal before the encounter with the asteroid group, the nuclear warhead in the missile body is detonated in advance four seconds before the encounter, and a blazing light suddenly explodes in the dark universe, and the energy of the explosion instantly expands to four hundred and eight directions, and the charged missile body produces a large amount of gas in the high temperature, and turns into a circle of shock waves with the support of the explosion energy.

An asteroid passed near the light cluster at a polar quotient speed, and the original flight trajectory was affected by the shock wave, and the asteroid's direction of flight was shifted unexpectedly.

The explosion of a nuclear bomb lasts for a very short time, but in just a few seconds, it can already have an impact on a dozen or even dozens of small lines.

Subsequently, the second missile, the third...... More than 200 missiles exploded at intervals of three to five minutes, continuously affecting the asteroid's orbit.

The shock wave generated by the nuclear explosion is like a ball with ultra-low elasticity, and the passing asteroid will be bounced by the shock wave before the explosion dissipates, although the force of the bounce is very small, and the impact on the asteroid's orbit is not great, but the number of bounces is superimposed again and again, and finally the asteroid's flight direction is leveraged.

The images of the explosion were transmitted back to the ground through the space telescope, and the heads of state and related personnel who witnessed it did not let out the slightest cheer.

It will take time to see if this method will work, and it is too early to celebrate.

In the following days, the missiles launched by the two spacecraft detonated one after another, and the space telescope and asteroid radar finally determined that the flight trajectory of the asteroid group was deviated, and 60 percent of the asteroid orbit had deviated from the earth.

At this time, it was finally the turn of the Victory.

In the more than 20 days that Earth and Humanity have been flying head-on to the asteroid group, Victory has already installed the electromagnetic thrusters that have been built in a hurry, which comes in handy.

Not only that, but in the future, satellites will be used as carriers to send more missiles into space, forming a near-earth defense network for the purpose of smashing asteroids, and the intercontinental missiles of various countries have also entered a state of full combat readiness, ready to be launched at any time to meet the asteroids rushing towards the earth. (To be continued.) )