The two space shuttles set off one after another. In the following more than a month, the media paid close attention to the long-distance aircraft day and night. From the history of the aircraft to the modification technology, from the equipment carried to the identity of the crew, the two space shuttles were analyzed in detail.
The space shuttle conducts a comprehensive report, with real-time speed and position being the top priority of the report. It is broadcast on a rolling basis every day almost like the weather forecast.
During the reporting period, major TV stations invariably broadcast basic astronomical knowledge. For the first time, hundreds of millions of people got to know the sky above them seriously.
Although electromagnetic thrusters are more suitable for long-distance voyages than traditional thrusters, the thrust of electromagnetic thrusters is not high, but they do not require chemical fuel. After 22 days of flight, the Earth finally arrived at a distance of more than 2.7 million kilometers from the earth.
At the scheduled launch location, this distance is more than nine times the distance between the Earth and the Moon.
In ordinary people's minds, the launch site of the two spacecrafts should be a certain point in the universe, or a position that is stationary relative to the earth. However, in fact, the spacecraft arriving at the designated location is still accelerating.
After the Earth was in position, it immediately began to adjust its position and aim its electromagnetic gun at the distant space, not at the oncoming asteroids!
The asteroid swarm is flying toward the earth at high speed from a distance of more than 30 million kilometers, with a flight distance of up to 1.38 million kilometers every day. The speed of the electromagnetic gun's shells is far lower than the flight speed of the asteroid. It aims at the location where the asteroid is currently located.
You can't hit anything at this position. You must aim at a certain point in front of the asteroid's orbit and launch at a precise position and speed. Only then can you get close to the asteroid.
Note, it's close, not hit!
In fact, the major countries on the ground and the astronauts in the air know very well that no matter how accurate the electromagnetic gun is, in space where the distance is often measured in tens of millions of kilometers, the ammunition scattering area will be very large, and even all artillery shells may
The point of failure.
Let alone asteroids, even if it hits the earth 2.7 million kilometers away, it is difficult to say how many shells can hit it. The reason why ordinary projectiles are replaced by missiles is to consider the issue of hit accuracy.
This batch of missiles are special models that were urgently produced. They have extremely short bodies and carry very little fuel. The warheads installed in the missiles are specially designed to achieve ultra-high acceleration during the launch of the electromagnetic gun, and they will not be fired during launch.
The process exploded by mistake.
Several of the missiles do not carry nuclear warheads, but carry the equipment required for detonation.
The space on the Earth was limited, and it carried only more than 300 missiles. In a few days, the two astronauts used electromagnetic guns to launch the missiles on the spacecraft one by one. Each time they were launched, they had to carefully adjust the shooting.
angle.
When all the ammunition was empty, the speed of the spacecraft also dropped a lot due to the recoil. However, due to inertia, the spacecraft still flew head-on towards the asteroid group. (Don't tell me that the electromagnetic gun has no recoil. If you don't understand, Baidu will do it on your own.)
Of course, the spacecraft does not have to slow down and return. If the position of Venus is suitable, it can also fly to Venus and use the gravity of Venus to turn around and return.
It is not difficult for astronauts to do this. If it fails, they can also seek support from the ground. The ground will calculate the relevant data, and the astronauts are only responsible for the implementation.
Then the Humanity was in position and also launched more than 200 specially-made missiles towards the asteroid group.
Two groups of missiles fly towards the asteroid group in the universe, just like two groups of moths flying towards a campfire. However, the positions of these two groups of moths are under the monitoring of the earth at all times, and the ground monitors the missile groups every day.
Make fine adjustments to the position to ensure that the missile group continues to fly towards the asteroid group.
Ordinary warheads cannot adjust their direction after being launched, and the universe is full of various unpredictable interference factors. These two points are also important reasons for countries to abandon ordinary warheads and switch to missiles, even if they have to pay a huge cost.
On the eighth day after the missile was launched, the first wave of missiles was about to encounter the oncoming asteroid group. At this time, the asteroid group still maintained a high speed of sixteen kilometers per second, and the missile group's flight speed was eleven kilometers per second.
Kilometers, the relative speed is as high as 27 kilometers per second. Even if they encounter each other, the moment of meeting will only be 0.037 seconds, which is too short to leave even a momentary image in human eyes.
Although the relative speed of the two sides is fast, it is not faster than the detection speed of the radar. The special missiles in the missile group have been started in advance under the control of the earth. The released radar waves quickly determine the position of the asteroid group and send it to other targets.
The missile released a delayed detonation signal.
A swarm of asteroids is speeding towards us. The first missile launched by the Earth is about to contact the asteroid swarm, but it receives a detonation signal before encountering the asteroid swarm. The nuclear warhead in the missile detonates in advance four seconds before the encounter. The dark universe
A ball of blazing light suddenly exploded, and the energy of the explosion instantly expanded in all directions. The loaded projectile produced a large amount of gas at high temperatures, and turned into a circular shock wave with the support of the explosion energy.
An asteroid passed near the light cluster at a very high speed. The original flight trajectory was affected by the shock wave, and the asteroid's flight direction deviated in a way that should not have occurred.
The duration of a nuclear bomb explosion is extremely short, but a mere few seconds can already have an impact on dozens or even dozens of small bombs.
Subsequently, the second missile, the third missile... more than 200 missiles exploded at intervals of three to five minutes, continuously affecting the asteroid's flight trajectory.
The shock wave generated by a nuclear explosion is like a rubber ball with extremely low elasticity. The passing asteroid will be somewhat bounced by the shock wave before the explosion dissipates. Although the force of the bounce is very small and has little impact on the asteroid's orbit,
When the number of unstoppable bounces was superimposed again and again, it finally changed the asteroid's flight direction.
The picture of the explosion was transmitted back to the ground through the space telescope. The heads of state and related personnel who witnessed all this did not cheer at all.
Whether this method is effective or not needs time to be verified. It is too early to celebrate now.
In the following days, the missiles launched by the two spacecrafts detonated one after another. The space telescope and asteroid radar finally determined that the flight orbit of the asteroid group had deviated. Sixty percent of the asteroid orbits had deviated from the earth. The heads of state's
A smile finally appeared on his face, but there were still 40% of the asteroid left!
At this time, it was finally Victory's turn.
During the more than twenty days when the Earth and Humanity flew head-on towards the asteroid group, the Victory had already installed a rush-made electromagnetic thruster, which came in handy at this time.
Not only that, satellites will be used as carriers in the future to send more missiles into space to form a near-Earth defense network with the purpose of crushing asteroids. The intercontinental missiles of various countries have also entered a state of full combat readiness and are ready to be launched at any time.
, to fight against asteroids heading towards the Earth.
