In the face of Yi Feng's inquiry, Professor Lomon explained: "Because of the green light civilization of the spacecraft, the initial take-off speed is not zero.This unmanned spacecraft may have been fired from the main ship in the form of an electromagnetic gun, like a shell ... so quickly.”

“The energy inside it, and the ion engine, are used only to deceler in reverse...”

Yu Yifeng calmed his head, and his brain made up the picture, understood.

Similarly, some aircraft carriers on Earth also have a catapult.Using this ejection device, the aircraft has a relatively high initial speed before taking off.

Electromagnetic cannon This weapon is very versatile, not only can be used to fire artillery shells, but also to fire unmanned aircraft and the like.The electromagnetic gun is also a research hotspot in Noah, and the ion cannon and Gauss cannon are essentially variants of the electromagnetic gun.

He wondered if he would also have to build a large electromagnetic gun system that could launch a nuclear bomb or a high-speed drone... just like the Green Light spacecraft.

With new materials such as superconductivity and superalloys, coupled with the scientific development of these years, such a weapon system should be feasible, that is, the energy consumption is high.

Professor Lommon continued: “Son, if you want to change course, I think you can use the new ion engine to push Noah, which is more effective and more controllable than nuclear bombardment.”

"But because of Noah's wonderful properties, plasma is also a mass of matter, and spraying outward will reduce the speed of the spacecraft in a flat manner..."

“...Ei, the engine and the quality that needs to be sprayed can be moved in advance to the outside of the ship.”This is feasible, but it is necessary to lose a certain speed.”

Professor Luo Meng thought deep and thought to himself.

Changing the trajectory of the ship?

This reminds me of the tidbits.According to the time experienced by human beings, it has been a year and a half since people left the solar system, and then the relativistic effect has been counted, and the outside world has been about seven or eight years!

Noah is 0.98 times the speed of light, that is, humans are seven to eight light-years away from Mars!

Seven to eight light-years away is very far from the sun.And after so long, the solar activity slowly weakened, and high-energy gamma rays were difficult to hit Noah.

He remembered a report from the Astronomical Conference a year ago: the time is ripe, it is time to use the gravitational wave telescope to determine the correct position of Noah!

Thinking about it, he suddenly groaned in his heart.

This matter, after all, is still a matter of life and death for everyone, and human beings always find a foothold.

After discussing the new spacecraft with Xu Yunjin and others, Yi Feng immediately ran to the observatory and discussed it with several astronomy experts.

With their consent, he immediately ordered: open the exploration plan of the gravitational wave telescope!

Of course, this work takes a few days to prepare... the process is not much to say.

Three days later, a large number of high-level government and scientists concentrated on the astronomical observatory somewhere in Noah.

Today is the day when the gravitational telescope is restarted!

People gathered together in three or two and whispered.Their speech was a little faster, and their movements were slightly hurried.Although the cultivation of these human elites is very good, from the expression of behavior, it is still unable to hide the innermost anxiety.

They don’t care about this detection!

The universe is really open to space, the distance between the stars and the stars is incredible, and it is daunting to use the year of light.

If it had not been for the explosion of the sun, giving Noah an incomparable kinetic energy, no one would have thought that humans would one day be able to leave the solar system.

So far, even if human technology is booming, a year worth the past 20 or 30 years, still not much power to interfere with Noah, at most can only change the direction of movement.

This is really only a little bit!

Everyone, including Yi Feng, in addition to obeying the fate, can only pray to the god of luck, hoping that Noah's forward trajectory has a planet that humans can get, and hope that human beings have such good luck.

Although this probability is very small...

However, such a small probability event determines the various survival policies in the future!

If the observed planets are so far away from Noah's trajectory that human navigation techniques will fly for thousands or even tens of thousands of years, then ... people must implement a more frugal life policy, implement family planning, and strictly control the population!

Even, also have to study the large hibernation bin equipment!Reduce the consumption of resources through collective hibernation and survive this long voyage!The relevant hibernation warehouse technology has long been secretly developed, but it has not been known to the general public.

Well, humans don’t necessarily die, but they’re very troublesome... and maybe hibernation will end in an unexpected event!

No one wants to go down this path!

Yu Yifeng is also very powerful at this moment, tens of thousands of years is too long, the history of human beings is not yet ten thousand years!

But the subjective will cannot change the objective facts.Even if the end is not good, people have to accept the fact that if you really can only rely on hibernation, you can only go hibernate.

When the gravitational wave telescope opened for a moment, his mind calmed down inexplicably, as if it had been accepted.

A large string of numbers beats on the screen, which is the gravitational wave telescope's boot environment detection and data correction work, just like a computer boot.But it takes a long time, it takes about an hour.

During this time, many scientists chatted at random.They try to slow down the tension by chatting.

They were all about the universe, the star map, the sub-speed of light spacecraft, and the theory of relativity, which was esoteric, but also interesting.

In the current level of knowledge of Yi Feng, he can also understand, and he also stood on the side and listened with interest.

Two scientists are talking about the speed of light, and humans can see such a landscape.

Sitting in the sub-speed of light spacecraft, the scene outside the window is very strange, all the stars in space are gathered in the direction of the head and tail of the spacecraft, if you look with the naked eye, the stars on the head are blue, the stars in the tail are red.

Of course, at present, human radio telescopes can only hide behind Noah, and can only see the situation in the back.

From time to time, scattered stars fly out of the light in front of the ship, streaking through the dark space and quickly fly backwards, their colors are constantly changing, from blue to green, and then yellow, when it crosses the ship, it turns red.

This is because the light waves are elongated and produce redshifts.

Moreover, if a spacecraft flies at sub-light light, and an astronaut inside can still observe the Earth behind it, he sees a slow-playing image of the Earth, like a clock slowing down.

When he moved to a light-year from Earth, he saw not a real-picture image, but something a year ago.Time has been stretched for a light-year inexplicably, in fact, this is just an illusion seen by humans.

"Very interesting astronomical phenomena."

“Yes...”

In people's conversations, time passes minute by minute, and the gravitational wave telescope starts and begins a formal search!

The time has come to decide people’s lives!