The military doctor injected Zhang Chao with a hibernation agent, and then injected himself with another injection, and the landing craft was completely quiet, leaving only Ye Han, who was contemplating and thinking. Pen, fun, and www.biquge.info

The alien fleet could arrive at any time, Ye Han didn't dare to stay on the asteroid, and immediately increased the engine power, and the landing craft successfully flew away from the asteroid with weak gravity without much effort.

If the direction of take-off is not correct, the relative velocity between the landing craft and Jupiter will decrease, and the opportunity to fly away from Jupiter will be lost.

The best way to determine the direction is to look at nearby objects, Jupiter itself is very clear, but the moons near Jupiter are much worse, and no matter how good your eyesight is, it is impossible to see the objects near Jupiter without optical equipment.

And you can't stay in this hellish place for long, otherwise you will be in danger of being captured by aliens.

However, Ye Han knew that the relative velocity of the Yuewan and the small celestial body when it collided was not high, and the angle was also very small, by observing the impact traces left by the Yuewan on the small celestial body, Ye Han roughly determined the direction of the Yuewan before the impact, so as to indirectly judge the approximate flight direction of the small celestial body.

After the landing craft took off, Ye Han took one last look at the broken Yuewan, silently raised his right hand to say goodbye to the battleship and the sacrificed comrades, pushed the joystick forward, the landing craft flew away quickly, and the black paint quickly blended into the sky, and after a while, Ye Han could no longer see clearly the small celestial body that left the Yuewan.

He couldn't tell what he was feeling in his heart, that is, he was lucky enough to escape from the ascension, he was also worried about his future fate, and he was even more indescribably lost and confused.

Ye Han can also be regarded as having undergone systematic astronomy training, but when the book is used, he hates it very little, although the landing craft has successfully taken off, and there should be no problem with the direction, but he just can't figure out the bottom in his heart, and he always feels that something is wrong.

Astronautics is not child's play, and if he misses a fraction of a second, he will bury everyone, including himself, to Jupiter, hundreds of millions of kilometers away from Earth.

How can we find out the route?

Ye Han didn't know much about what it looked like outside the solar system, but he didn't know much about the situation in the solar system, and since he had no clue, he could only use the stupidest way to list the situations he knew one by one.

First of all, the landing craft should be flying retrograde around Jupiter, which is the same as the direction when the Luna Bay cut into the route around Jupiter, and the Lunar Bay flew around Jupiter for most of the time before encountering Europa, so when the battleship hits the asteroid, the Sun should be somewhere in front of it.

With the orbital altitude of Europa, there should be no retrograde small objects nearby, but there is no need to dwell on this problem, the devil knows what the aliens did to Jupiter.

Secondly, he was in a coma for a while, and he didn't know how long he had been in a coma, at this time, the sun could not be seen directly in front of the landing craft, and the situation on the left and right sides and the rear could not be seen really, so he could only keep the current route for the time being, and wait until he found the sun!

He still didn't know the orbit of the small celestial body, in order to ensure the correct route, Ye Han aimed the laser rangefinder on the boat at Jupiter, always paying attention to the distance between the landing craft and Jupiter.

Again, Ye Han knew very well the position of the expeditionary fleet when it set off, and now the earth should still be in its original position, but he couldn't figure out the current attitude of the landing craft...... It was at this time that he saw the Big Dipper outside the porthole!

A flash of lightning suddenly flashed in Ye Han's mind.

No, although it is far away from Jupiter, the constellations on the celestial sphere are still those, and the direction can be judged by the constellations, even if it is not so accurate, it will not affect anything!

Ye Han immediately lay on the porthole, looking around for the position of the sun.

The sun seen in Jupiter's orbit was very small, but it was not enough to be confused with the starry sky, and Ye Han soon found the trace of the sun in the direction behind the side.

At this time, turning around and flying towards the sun is looking for death, and it is not good that it runs out of fuel before it flies out of Jupiter's gravitational range, and it must maintain its course, fly around Jupiter for most of the circle, and then accelerate away.

Only in this way can it be returned to Earth with limited fuel.

However, it is easier said than done, once the spacecraft departs, Ye Han will inject himself with hibernation, he only knows a general direction, there is no detailed orbital data, and he may fly somewhere when the time comes, this is not a joke.

Moreover, Jupiter is already the territory of aliens, even if the landing craft is far away from Jupiter at this time, there is a possibility of encountering an alien spacecraft.

Ye Han didn't dare to continue to think about it, for fear that he would be completely desperate if he thought about it again, so he hurriedly aimed the laser outside the cabin at the earth: "Landing craft 104 call command center, I am Ye Han, commander of the Yuewan Marine Corps, at present, all the surviving officers and soldiers of the Yuewan are on the landing craft, the location of the landing craft is unknown, the orbit is unknown, and the speed is unknown, and the command center is urgently needed to guide us back......"

Worried that the landing craft would encounter an alien spacecraft, and no one would know what happened to the expeditionary fleet at that time, Ye Han told all the information he knew, and let the command center know the strength of the alien fleet as much as possible, and the chaotic news flew towards the earth at a speed of 300,000 kilometers per second with the laser signal.

More than forty minutes later, Earth, Qiongzhou Space Command Center.

"Report, chief, just received a signal from the expeditionary fleet!"

Huo Qiang's eyes widened in surprise: "Where did you say the signal came from?" "The expeditionary fleet has not heard from it for most of the day, and the space telescope on the Tiangong has confirmed the news of the total annihilation of the expeditionary fleet, how can there suddenly be a signal from the expeditionary fleet?

"Expeditionary fleet!" The communications staff officer replied unusually affirmatively.

"What's the content?"

"There were a dozen survivors on one landing craft, requesting the command center to navigate."

"Do it right away and do your best to bring our heroes back."

"Yes!"

"Inform Tiangong that I want an image of Jupiter, mark the signal source for me, and give me the analysis results as soon as possible."

The image on the big screen was immediately changed to Jupiter, and a small point of light was marked near Jupiter.

After a while, the combat staff officer ran to Huo Qiang: "Report, the results of the analysis are out!" ”

"Pick the point."

"Yes!" "According to the analysis of known data, the battleship lost control when the Moon Bay broke through and collided with a small celestial body near Europa, limited to the angle, the space telescope failed to capture the details of the impact, and the information from the landing craft said that the angle and relative velocity of the impact of the Moon Bay were not large, and they were survivors of the impact, including the wounded." ”

"I didn't expect that!" Huo Qiang sighed, "Send the data over as soon as possible!" ”

Soon after, Ye Han received laser communication from the space station, and after activating the remote control mode of the landing craft as required, Ye Han injected himself with hibernation.

After another day and a half, the landing craft accelerated away from Jupiter's gravity and flew in the direction of the Earth, in the direction of the Sun.