During the three years of exploiting the resources of the solar system, Nguyen Lin visited the Kuiper belt, where Pluto is located, which is 20 times wider than the main belt of the asteroid. Ruan Lin also collected countless water, ice, and ammonia here.

At this distance, he observed material in the Oort cloud range through gravitational microlensing, but there were no remnants of the battle between the Titans and the Zeros.

If so, it may have been discovered by humans as early as the time of the earth.

Ruan Lin sighed: "As long as it flies within the range of the Oort cloud, the gravitational pull of the sun is extremely small, and this is officially leaving the solar system." ”

“wit！ Now we have a lot of time to look into it. Ruan Lin looked at the meteorite pendant in the sampling bottle.

"We still don't know anything about it..."

The fleets of Earth's civilizations are still shuttling through the boundless sea of stars.

Not only does the solar system have an ecliptic plane, but the entire Milky Way can be seen as a flat silver disk, and the closest star system to the solar system, the Centauri α is located slightly below the solar system, but it is also almost on the same plane as the solar system.

At this time, the fleets of Earth civilizations are all speeding at a constant speed of 1000 km/s, but if they want to reach the closest star to the solar system, Proxima Centauri, which also belongs to the star system α Centauri, 4.22 light-years from the sun. There are about 40 trillion kilometers.

Proxima Centauri. Although they are neighbors, they are far away from the world!

Its distance from the Oort cloud in the solar system is almost the same as the distance from the Oort cloud in the Nguyen Lam fleet.

It would take 1259 years to reach its nearest neighbor, Proxima Centauri, which is an extremely long time.

The star system α Centauri is a great attraction for Earth scientists and science fiction movies. This star system is a three-in-one star system, which is often referred to as the three-body system when we were on Earth.

But in fact, it is generally composed of a pair of double stars: α Centauri, β Centauri, and Proxima Centauri, which is closer to the solar system.

But they are all a triad that obeys the law. The Centauri α, the Centauri β each orbit around a center of gravity of a common mass.

Proxima Centauri, on the other hand, is gravitationally connected to each other, orbiting the two stars in a fixed elliptical orbit.

The Centauri α and Centauri β orbit each other for a period of 80 years. Proxima Centauri, on the other hand, has an orbital period of 550,000 years.

This is extremely sad for it, and it can only watch these two lovers love from the sidelines.

It also makes sense for Ruan Lin to choose Proxima Centauri in the constellation Centauri α star system for his first trip. This is the closest star to the solar system.

Several other planets have formed around Proxima Centauri, as well as a new planet "Proxima D", which was announced in February 2022, and Ruan Lin wants to confirm the existence of this planet.

Six hundred and twenty-five years have passed, and Ruan Lin has reached the final frontier: the Oort Cloud Range. The location it is now in is the outer layer of the Oort cloud.

During this period, the analysis of the meteorite pendant also made it clear: it is just an iron meteorite that can be found everywhere in the solar system, and there is nothing special about it.

As for the kinetic weapon suitable for ships, Ruan Lin has also developed it, it is an electromagnetic railgun that has been conceived on Earth for a long time, but Ruan Lin did not start making it directly, he wants to wait until he arrives at Proxima Centauri before starting large-scale installation.

The research on the computer of the Titan civilization is still no progress.

The outer layer of the Oort cloud, which is also the origin of all long-term comets in the solar system, is less traction in the solar system and is therefore susceptible to the gravitational pull of the entire Milky Way, thus entering the solar system and becoming a comet. This is the home of the famous Halley's Comet.

“wit！ We each control half of the ships, and there are trillions of stars larger than 1 kilometer here! There are also billions of stars with diameters of more than 20 kilometers. We have to go through the outer layer carefully, and this is just the beginning. ”

From an external perspective, you can see that 60 kilometers to the right of the fleet of the Earth civilization, there is a star with a diameter of 26 kilometers! It's like a soccer ball with ice slag on its surface, and it's mostly composed of water ice and methane, so it's not an exaggeration to say it's an ice hockey puck.

Despite the tens of millions of kilometers between each star, Ruan Lin and Wit carefully steered the ship through the outer layers of the Oort Cloud.

Ruan Lin stared at the celestial body outside the porthole and said, "We need to replenish the matter when we reach the inner clouds!" There are dozens or hundreds of times more stars in the inner layers than in the outer layers, and we need to capture them in large quantities to replenish fuel. ”

Ruan Lin continued to work on the computer of the Titan civilization, and at this time he had a rough guess: it was a combination of a photonic computer and a quantum computer.

The voyage spanning 1259 was like a window passing, and Nguyen Lam no longer had the concept of time.

During this period, the Earth Civilization Fleet lost 32 Meteor-class destroyers, and other ships were tinkering along the way.

Further improvements to kinetic weapons have also been completed, and there are currently some research advances in the Titan civilization's computers.

Follow-up improvements to the controlled fusion engine have also been completed.

"I don't know how the Titan civilization came to the solar system across a distance of millions of light years!" Ruan Lin sighed.

The fleet of Earth civilizations is already approaching Proxima Centauri, which also represents the official entry into α star system of Centauri.

Its radius is about 0.14 standard solar radius, which means that it is only about one-seventh the size of the sun!

Ruan Lin directly began to observe it with the naked eye: "The red dwarf star is really like this, it is too dim!" Its apparent magnitude is only 11 magnitude, and its brightness is only 6/100,000 of the Sun's! ”

At this time, he also easily observed the closest planet to Proxima Centauri, Proxima B. Proxima Centauri's light is very dim, so Proxima b orbiting around it will not be overwhelmed by the starlight.

"It is indeed a terrestrial planet, about two standard Earth masses with a radius of 1.1 times the standard radius of Earth. It bears a lot of resemblance to the Earth, alas. It's too close to Proxima Centauri! Ruan Lin lamented.

He was going to land on Proxima Centauri B first to find out. He had to test the hypotheses of countless scientists and astronomers.

"Dr. Nguyen, so far only two terrestrial planets, Proxima Centauri b and Proxima C, have been found, and Proxima D, which geoastronomers announced in 2022, has not found any trace so far." wit said.

"I still have to draw some more distance, maybe because it's too small, but whether it exists or not, I don't know whether it exists now." Ruan Lin comforted himself.

At this time, the radio telescope on the Titan suddenly received a radio signal with a frequency of 700 megahertz.

Ruan Lin was puzzled: "WIT, conduct an interference signal investigation and inquire about the emission source of the signal." This could be a signal from the comet's hydrogen atoms. ”

WIT steered half of the ship to point at a certain point: "This signal has a single frequency, it is not a multi-range spectrum emitted by a comet or other stars, and according to the signal investigation, the radio telescope has not accidentally observed a comet or other stars passing by." ”

"Radio source confirmed, emission source: Proxima b."