Chapter 481: The Big Spinning Top_1

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To shield space radar signals requires a high level of technology.

Although modern warship radars are still called radars, they bear little resemblance to traditional radars.

Instead of using electromagnetic waves to detect enemy targets, they primarily use gravitational waves.

The method of detection has long since moved away from the time-consuming echo method and instead directly receives gravitational waves emitted from enemy vessels or celestial bodies.

In space, any celestial body will have some degree of gravity, and gravitational waves generally radiate from the source of gravity.

Thus, modern radars simply need to receive these gravitational waves.

The principle is simple, but the receiving equipment requires very sensitive "touch."

This is especially true for celestial bodies with a small diameter or enemy fleets; the gravitational waves they emit are extremely weak and mostly covered up by cosmic background radiation.

The Solar System State began focusing on gravity-related research early on, and the results likely surpass those of the Trisolarans.

Even when the Solar System Federation was swallowed up by the Solar System State, they had not developed a space radar with a range of 1,500 astronomical units, indicating the lead of the Solar System State.

Additionally, modern radars can determine the velocity and trajectory of high-speed flying objects based on changes within a certain range of space.

As long as they reach one percent of the speed of light, they generally cause subtle changes in the space they pass through, with greater velocities leading to greater changes.

For objects flying at the speed of light, to modern radars beyond 1,500 astronomical units, it's like hanging on their forehead, allowing them to see.

Receiving gravitational waves and observing subtle changes in space are the main methods of modern radars.

To shield these observational methods would be tantamount to hiding the signals of gravitational waves and the spatial changes within the radar's range.

Cao Yang and Essinger didn't know how difficult this would be, but it must be very difficult.

Therefore, a civilization capable of setting up such a barrier must be very advanced.

Since it is an advanced civilization, four or five days ago, the Silicon Star People and the human fleet were chasing and fleeing into this strange star system; why hasn't this advanced civilization shown any reaction?

Cao Yang promptly asked, "Is the real-time communication system still functional?"

Communications officer Ai La replied, "It can be used normally."

Everyone in the command room breathed a sigh of relief. That's good.

"Report the situation here to the Blue Maiden Star immediately!" Cao Yang continued, "The entire fleet will advance dispersedly. There may be more than the Silicon Star People as enemies here."

At that moment, Galaxy III reported, "Preliminary detection of the planet has been completed. It is a terrestrial planet with no signs of civilization."

This news eased the tension in the command room again, suggesting the previous barrier might have been some kind of natural phenomenon.

Cao Yang pinched his chin and asked Galaxy III, "What are your criteria for determining whether a civilization exists?"

Galaxy III responded, "There are three main indicators: metal distribution detection, nuclear facility detection, and anti-matter or dark matter detection.

"These can all be detected from afar and are one of the important standards for measuring the level of a civilization.

"According to the data detected by the command ship, there are no signs of large concentrations of metal, no indications of nuclear facilities operating, nor any signs of dark matter or antimatter being utilized on the planet.

"Even if there is a civilization, it would only be a primitive one that has not yet mastered metal smelting technology."

Most people hadn't grasped the point of Cao Yang's question, but the staff who did, inhaled the sigh of relief they had just let out.

Galaxy III's detection standard is entirely based on Earthling's perspective of judging the stage of a civilization's technology.

What if their technological development didn't follow a path similar to Earth's?

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"What if the adversary has already passed through the stages of using nuclear power and dark matter energy?"

"Therefore, it's still impossible to definitively determine whether there are advanced intelligent life forms on this planet."

Following that, Galaxy III generated a three-dimensional simulated image of the planet and its surrounding satellites on the main screen.

The planet had a total of three satellites, two large and one small. The diameters of the two large satellites were roughly between one and two thousand kilometers, and they were both spherical.

The small satellite, however, somewhat resembled a spinning top.

But since it was so small, the generated three-dimensional simulation wasn't very clear, and Cao Yang and the others couldn't confirm the small satellite's shape.

Chief of Staff Essinger noticed, "Commander, there's an enemy fleet lingering around that small satellite, and it seems that the other hostile ships might have intentions of landing."

Even if there were an advanced civilization, it seemed they didn't pose a difficulty for the Silicon Star People.

Cao Yang's first reaction was, "They actually landed."

In fact, the current situation was advantageous for the Silicon Star People's ships, as Cao Yang's small fleet had already entered their shooting range.

But what was strange was that they hadn't actively formed an attack configuration. Instead, they were lingering near the small asteroid and intended to land on the planet in front of them.

These actions didn't seem like reasonable tactics.

Cao Yang stared at the main screen, "It looks like we're going to have to pay a visit to this planet as well.

"All ships prepare for assault! Shoot immediately if a Silicon Star People's ship shows up!"

With the situation up ahead unclear, Cao Yang treated it with caution, not daring to attack rashly.

However, he couldn't let this fleet of Silicon Star People's ships go.

Half an hour later, they had gotten sufficiently close to the planet, and Galaxy III captured optical images of the planet.

Cao Yang ordered, "Zoom in on the position of that small satellite."

Galaxy III enlarged the image, revealing the small satellite with a wide top and narrow bottom—it was truly a top-shaped cone!

Ai La curiously asked, "Is there such a shape for a satellite? Could it be a small asteroid?"

Even if it were a small asteroid, such a shape was still highly unlikely.

Cao Yang pinched his chin habitually, "I don't think this was formed naturally!"

Essinger reported, "Commander, it has been confirmed that the enemy warships have dispatched a small squadron to that spinning-top satellite, and most enemy ships have completed the landing."

Additionally, the planet still showed no reaction, and by looking at the images, it didn't seem to have undergone large-scale construction, essentially ruling out the possibility of advanced intelligent life.

Everyone had an unspoken guess: The barrier was formed by that spinning-top satellite, and the spinning-top satellite must be a relic of an advanced civilization!

Another relic?

A few minutes later, Cao Yang started to issue combat orders, "Generate the Combat Sandtable! All ships prepare for close combat!"

He then ordered Essinger, "Take command of ten warships and seize the spinning-top satellite. See what kind of mysteries that satellite holds!"

Essinger received the order and generated a local command platform on the side of the captain's room, bypassing the wartime platform and directly commanding the ten warships as they rushed towards the spinning-top satellite.

On another front, Galaxy III formed a three-dimensional image sandtable, making the enemy and our positions clear at a glance.

Cao Yang ordered, "Captain Kakari of the Taibai Number Grand Warship will be the front-line general commander! Attack the enemies on the planet's surface from a near-earth orbit immediately, and don't give the enemy any chance to catch their breath!

"Assemble the Monster Cannon in a near-earth orbit and be on standby at all times!"