Xu Xingchen was preparing to place his space telescope at L2 of Lagrangian of Ship Girl Star, which is about 1.97 million kilometers away from Ship Girl Star.

In this way, the telescope can rotate in a synchronous manner with the stars in the galaxy, and each star year (384 days) orbits the galaxy for one week.

A large-diameter radio telescope with a diameter of one kilometer can basically see all the celestial bodies in the galaxy system.

The situation of the star system around it within a dozen light years is mainly the state of large planets, and you can barely understand the basic situation.

As for the further distance, it is mainly to observe stars, form the star list, and at the same time explore the overview of the entire universe.

This giant space telescope can be seen very far away if used to observe stars and the universe.

The Hubble Telescope on Earth, the single star that was discovered at the farthest distance, was named the Icarus star 9 billion light years away.

The farthest galaxy discovered is 134 light years away. It is a galaxy that has existed four years after the birth of the Earth's universe. It is numbered as GN-z11, also known as the baby galaxy.

The new generation of James Weber telescope should be able to discover more distant and closer to the earliest galaxies in the universe.

Xu Xingchen is supported by the Shiniang Technology System, and the space telescope he is preparing to build is extremely powerful.

It will not only far exceed the space telescopes currently built on Earth, but also far exceed the telescopes planned by the Earth for decades to come.

Their observation distances of stars and celestial bodies will far exceed the various astronomical telescopes on Earth.

Then, based on the actual distance of the observed celestial body system and the red shift of the celestial body system, it is determined whether the current universe is expanding or contracting.

Then, based on the speed of contraction and expansion, the age of the current universe is inversely calculated.

At the same time, there is another important role in the observation of stars and universes, which is to confirm whether the universe where the ship girl is located is the universe where the earth is located.

Xu Xingchen's guess now is that the two are most likely to be the same universe. At least, there is a very likely chance that there will be an earth in this parallel universe.

Because according to the guidance tasks given by the system, Xu Xingchen knew the civilization to which he and the ship girls belonged, and was called the "Inheritor of the No. 1024 Backup Civilization" by the task setter.

When I first heard and saw it, Xu Xingchen didn't care too much, but as time went by, Xu Xingchen felt that the amount of information about this title was too large.

No. 1024 - There are more than a thousand backup civilizations in the universe, such as Ship Girl Star. What are you going to do? Just cast a wide net or raise a Gu?

Backup civilization - the human and the ship girl of the ship girl, who is the backup? Who is the backup? Is the main body still there?

Inheritor - Who is the inheritor? Who is inherited? Is the inheritor still there?

Now Xu Xingchen was very suspicious in his heart whether the earth that should exist in this universe is still there?

If it still exists, what form does it exist? Is the end of the world still developing independently?

If the galaxy where the Ship Girl is located is not too far from the solar system of this universe, you can find it through a space telescope.

Although it is impossible to directly recognize the ordinary yellow dwarf of the sun in the distant starry sky, its identity can be locked through the relative coordinates of the stars around the sun.

However, that's all the capabilities of the space telescope.

Even if you find the sun, you will not be able to determine the state of the earth through the telescope.

Gu Yan

Space telescopes can see billions of light-years away when looking for stars, but for planets, it is difficult to see several light-years.

Because more than 99% of the matter in the star system is concentrated on the star itself, and the stars are burning luminescent bodies.

Not only is the size of the planets small, but they do not glow themselves. Under the interference of stars, it is extremely difficult to directly observe them outside the galaxy.

At most, it is determined whether there is a planet by the interference caused by planets to the star's light. As for the information about the planet itself, it cannot be said that it is based on guessing, but it can only be considered an estimation.

If you want to intuitively confirm the specific state of a planet, you still have to go directly to the corresponding galaxy to observe.

Therefore, super-light speed and hyperspace navigation technology are essential capabilities for the next era and also indispensable technologies for interstellar civilization.

Scientific research ship girls have also struggled with related research, mainly focusing on the imaginations of the Earth's technological era, such as curvature, wormholes, etc.

But so far, we can't say there is no progress, we can only say there is no clue.

They either need to find magical negative matter with negative energy, negative pressure (not antimatter), because only negative materials can achieve local spatial compression and distortion.

Or master the transfer of dark matter and affect the expansion and contraction of the universe by moving dark matter in space.

No matter which direction, it is very outrageous in terms of human technology level and the current technology level of the ship girl.

Although the ship girl's ship's ship equipment has already involved space compression technology, the design and manufacturing technology of the ship girl itself is still in an absolute black box state.

Therefore, Xu Xingchen himself guessed that technologies involving space distortion such as curvature and wormholes are likely to exist.

It should be said that they are the creators of the ship girls, or the setters of their own guidance tasks, and they may have mastered the corresponding technology.

Therefore, the reward for your subsequent guidance task is to be said to be a subsequent technology lock, which is likely to unlock these things.

If the creators do not master the ability to navigate at superluminal speed, they and the ship girls will probably have to rely on working fluid to propel the spacecraft and move in nearby star systems at sublight speeds.

As for the current technological level of the earth, even if it is necessary to achieve sub-light speed navigation, it still exists only in fantasy.

Even if calculated based on mastering controllable nuclear fusion technology, it can only theoretically achieve a navigation speed of 0.05 to 0.1 times the speed of light, and the actual feasibility in engineering is extremely low.

If a nuclear fusion-powered spacecraft wants to reach a maximum speed of 0.5 times the speed of light, it theoretically needs to use a trillion-ton spacecraft hull, and most of the mass must be used to load fuel, which means it is not feasible at all.

In theory, it is necessary to master the controllable annihilation technology of positive and anti-matter and use the annihilation of positive and anti-matter as the driving force for the spacecraft to achieve sub-light navigation.

However, for today's ship girls, using the technology they have mastered can directly realize sub-light navigation and have certain feasibility.

The ship girl's hull actually has space compression capabilities. After replenishing resources, the ship girl can generate fuel with tens of thousands of times the weight. This is actually another space compression.

In this way, the compression and nesting of two layers of space can carry fuel equivalent to billions of tons of fuel, and specially modified transport ships can carry more.

With a smaller size spacecraft, the maximum speed of 0.5 times the speed of light can be achieved using the newly obtained nuclear fusion or intermediate matter engine.

Of course, acceleration will take a long time, so this kind of engine is still not used for close-range planetary exploration. Stars that are too far away will take too long, so they are only suitable for exploring galaxies within a few light years.

Therefore, in the scientific research plan finally arranged by Xu Xingchen, all projects related to superluminal navigation were suspended, and the subluminal spacecraft design was also placed in a secondary position.
Chapter completed!