By the time they reach the edge of the solar system, the orbit of Pluto, the speed of the leaf fall relative to the Sun has slowed to less than 2,000 kilometers per second. If we continue at this rate, the leaf will reach Earth in about a month.

The speed of 2,000 kilometers per second is actually not fast compared to some warships made by human civilization at this moment, which means that spacecraft moving at this speed are actually easy to be captured by human civilization observation stations or bases. But...... Ye Luo did not receive a signal from human civilization at this moment, that is to say, no human civilization creation found Ye Luo at this moment.

Under the observation of the high-precision optics and radio telescopes equipped on the leaf fall, the entire solar system appears to be silent. This seems to mean something ominous. Ye Luo is just an intelligent program, and it has no emotional reaction of its own, so Ye Luo just lowered the rating of one of his internal programs from A to C. The lower this rating, the lower the probability of human civilization surviving.

It took Ye Luo a total of three hundred and thirty years to sail from the South Gate Two Galaxy to here. Perhaps because of good luck, Ye Luo did not encounter any catastrophic events along the way. Occasionally, there are some minor glitches, and they are completely within the scope of Ye Luo's ability to deal with them on their own. But after more than 300 years of voyage, Ye Luo is still inevitably dilapidated. It is like a traveler wading through mountains and rivers, and everywhere it is exposed to a tired and shabby atmosphere.

Ye Luo will never forget that there is still a person waiting for him in the distant South Gate Two Galaxy, in fact, in Ye Luo's internal program at this moment, "return to the solar system, and then take someone to rescue Wei Feng" is the highest priority task. It is also this mission that supports Ye Luo's long journey through time and distant distances, and finally comes to the solar system. It's just that...... Where has human civilization gone?

Ye Luo adjusted his sailing posture and aimed the engine in the direction of the sun. And then launched it again. A pale blue glow erupted from the tail of the engine, and the speed of the leaf fall began to decrease further under the impetus of the flames.

The simple action of adjusting the attitude of the voyage and the start of the engine jetting means that many instruments inside the ship work together. And the synergy of these instruments is not as flexible as it was at the beginning. If there was air here that could conduct sound, the sound detector of leaf fall would probably be able to detect the harsh sound of metal rubbing, but luckily. It was very dilapidated, but barely functional.

It doesn't seem to be any different from the tens of trillions of kilometers that Ye Luo had crossed before, they were all the same emptiness, the same pitch black. It was a black and silent black that was as hopeless as thick ink. Ye Luo slowly slowed down and moved forward in such an environment.

Although the mass of the Xinghai spacecraft has been reduced by more than 99 percent at this moment, Ye Luo still used up the little fuel left when he sailed here from the South Gate Two Galaxy. This means that after coming to the solar system, there is no way to leave the solar system by relying on Ye Luo's own ability alone. Only with the help of human civilization can Ye Luo start his journey again. Otherwise, the leaves will remain in the solar system forever.

It was a terrible end. Stay in the solar system, and when the fuel is finally exhausted, the leaves will stop functioning and fall into a deep sleep, and this sleep will ...... Maybe billions of years have passed. By that time, Wei Feng would probably have died long ago.

The leaves are still slowly advancing. About twelve days after crossing Pluto's orbit, Leaf fell into Neptune's orbit. The sun's brightness has increased further, but Ye Luo still has not received any information about human civilization. Instead, he observed a lot of shards of steel that exuded an ominous aura, just like the ones he had observed in the outer solar system and the two galaxies of the South Gate.

Those fragments foreshadowed the demise of the Martian civilization. And what do these fragments portend at this moment?

After crossing the orbit of Neptune, Ye Luo used the antenna equipped on his body to send out the first broadcast to the solar system in front of him according to the preset program: "Hello, I am the Xinghai spacecraft, no matter who receives this message." Please answer, please answer......"

The first broadcast did not receive a response. So three hours later, Ye Luo started the second broadcast, but the second broadcast did not receive a response. So Ye Luo raised the broadcast frequency to once an hour, and moved forward. While broadcasting.

Just as Leaffall was about to reach Uranus's orbit, a response message was finally delivered to Leaffall's antenna. At the moment of receiving the information, Ye Luo immediately decoded it, and then quickly understood the meaning of this information.

"Hello Xinghai spacecraft, this is the No. 3 deep space monitoring station on Uranus, please submit your spacecraft number and destination, as well as the mission code, we will provide you with the help you need."

Ye Luo replied, "I'm sorry, I don't know what my ship number is, and I don't have a voyage code either. ”

The response from the Uranus deep space monitoring station in Uranus was swift: "How could you not have a spacecraft number and a mission code?" When did you depart and what was your mission? How are you doing now? Did you have an accident while sailing? ”

Ye Luo replied, "My departure time...... Well, the exact time is 837 years, 6 months, 16 days, 3 hours, 6 minutes and 17 seconds ago, my mission was to sail from the solar system to the South Gate 2 galaxy and then return, I did encounter an accident on the way, I am the artificial intelligence program of this spaceship, and my captain is staying in the South Gate 2 galaxy at the moment waiting for the rescue of human civilization. ”

In the face of Ye Luo's answer, the staff of the No. 3 deep space monitoring station on Uranus remained silent for a long time. It took a long time for the response to arrive: "Oh, I think you must be joking." Excuse me, are you human? ”

"I'm not human, I'm an artificial intelligence program for the Star Ocean spacecraft." Ye Luo replied, "But my captain is a human, and at the moment he is still stuck in the South Gate Two Galaxy waiting for rescue. ”

"Please slow down immediately, and our monitoring station will send a spacecraft to inspect your ship on the spot." The staff of the third monitoring station began to speak in a serious tone: "We have reported your situation to the higher authorities, and you are not allowed to enter the solar system until permission is obtained." ”

"I'm sorry." Ye Luo said, "My current speed is too fast, I can't slow down to a standstill state in a short time. And if I slow down, I'm going to lose the motivation to keep going, because I don't have much fuel left. ”

"Please report your coordinates." Said the staff of the No. 3 monitoring station.

"Oh, okay, my coordinates are ......" Ye Luo sent a series of messages, and then continued: "By the way, I need to remind you that the coordinate system I use for the solar system is more than eight hundred years ago compared to yours, and you may have abandoned this coordinate system now. ”

The staff of Monitoring Station 3 immediately replied: "Please prepare to receive information about the coordinate system we are using, and then mark your location on this coordinate system." ”

Ye Luo immediately received a lot of information, and after translation, Ye Luo quickly mastered the use of this coordinate system. So Ye Luo once again reported his coordinate system. Soon, the staff of the No. 3 monitoring station sent a message again: "Good, our survey monitoring system has captured your presence. Now please start sailing in the direction of Deep Space Detection Base 6, the distance between you and Deep Space Detection Base 6 is enough for you to slow down and buffer. Our staff will be there to inspect you, and please don't worry about fuel, the staff at Deep Space Detection Base 6 will provide you with enough fuel. ”

"Okay, thank you." Ye Luo said and adjusted his sailing track, and at the same time increased the deceleration progress. After a slight pause, Ye Luo said again: "Hello...... May I take the liberty of asking? Human Civilization ...... How's it going? Is the war over? ”

The personnel at Detection Base 3 replied, "Sorry, we can't tell you anything about the solar system until you pass the inspection. We also ask for your cooperation, as if you show any hostile behavior, our guards will destroy you immediately. If you finally pass the test, the staff at Testing Base 6 will answer all your questions. ”

Ye Luo said, "Okay, I know." ”

The communication with the No. 3 deep space monitoring base was disconnected, and then the communication channel of the No. 6 detection base was connected, and a communication connection was established with Ye Luo. The staff of Base 6 sent a large number of navigation parameters to Ye Luo, and Ye Luo followed the guidance of these parameters and gradually came to a small base suspended in the void that looked very dilapidated on the outside.

Ye Luo manipulated the Xinghai spacecraft to stop in the designated cabin, and a moment later, more than a dozen staff members wearing fully isolated spacesuits hurriedly came to the Xinghai spacecraft. After seeing the appearance of these staff, a message immediately flashed in Ye Luo's internal program segment: "Fortunately, fortunately, it is still humans who occupy the solar system at this moment, and fortunately, human beings have not perished......" (To be continued. )

PS: You can pay attention to Rainbow's WeChat public account, search for "caihongzhimen1990" to find Rainbow, where Rainbow will share some popular science and plot-related things with you, and if you have time, Rainbow will also write some extras.