The Edge-1 is the name of the ship that is about to go on an expedition to Europa.

In ancient China, Jupiter was called the star of the year, and it was taken that it orbited the celestial sphere for 12 years, which was the same as the earthly branch. It was not until the Western Han Dynasty in China that Sima Qian, the astronomer who wrote the "Historical Records - Tianguanshu", found that the star was cyan from actual observation, which was associated with the "Five Elements" theory, and then officially named it Jupiter.

The departure time has been set, and the first trip to Europa is an unmanned spacecraft, and after two days of testing and commissioning, it will go to Europa.

The journey to Jupiter is a relatively long journey compared to coming from Earth to Mars.

How do you calculate this distance?

Chen Mengchuan smiled and gave Sun Zhongyong and his daughters a round of science.

"Usually in the universe, because the distance is too far, the distance calculation units we usually use such as meters and kilometers will seem a little weak, so there is a more common unit in the world, which is AU, AU is the astronomical unit of length."

"Uncle Chen, how far is that AU unit?" Sun Zhongyong's daughter asked.

"In the past, people defined the distance from the earth to the sun as an astronomical unit AU, but later at a meeting held by the International Astronomical Congress, they unified their opinions and defined a distance accurate to the meter astronomical unit AU, which is about 149.6 million kilometers, which is actually the approximate distance from the earth to the sun." Chen Mengchuan said with a smile.

The girl asked curiously, "How far is it from Mars to this Europa?" ”

"The girl asked a very good question, you can do the math, Mars to the Sun is 1.6 AU, Jupiter to the Sun is 5.4 AU, so how many AU do you say Mars to Jupiter?"

"3.8 AU!" The girl jumped to her feet excitedly.

"That's right!" Chen Mengchuan laughed, and everyone became cheerful.

Toni, who was standing aside, rolled his eyes.

Chen Mengchuan's algorithm is not scientific, because it also needs to calculate the orbit of the planet.

The difference between Jupiter's orbital period and Mars is significant. Mars has an orbital period of about 1.88 years, while Jupiter has an orbital period of more than 11.86 years. For an orbital period with such a large drop, there will be additional distances, and Chen Mengchuan calculated only the shortest distance. But in terms of joking with children, he can say this, but he can also say it, does he still have to calculate the variables of the track with the children? That's a lot of trouble.

"Yumekawa, how long will it take for this exploration ship to reach Europa?" Sun Zhongyong has some doubts about the time that has changed several times, and it seems that the proofreading time at the beginning is much longer than the current proofreading.

Chen Mengchuan took out the small gravitational screen in his hand and swiped it, marking the latest progress of the current Eternal Universe example space crossing space folding technology.

The latest update and optimization of the example shuttle is to be able to make a spatial jump every 17.25, each time to reach an absolute straight-line distance of 160,000 meters, and 246 spatial folds at the same time!

That is to say, an absolute straight-line distance of 39,360 kilometers can be achieved each time, and after adding AU astronomical units, it can be calculated that it takes about 3800 times to complete the distance of 1AU astronomical unit, and at the current efficiency of once every 17.25 seconds, it only takes 18.2 hours of uninterrupted progress to complete 1AU astronomical units.

This is also the result of the efforts of the Eternal Cosmic Particle Space Folding Space Crossing Department day and night.

Purely from the data panel, the current overall orbital parameters of Mars and Jupiter have been calculated to be a relatively accurate value of 5.3218AU.

The final proofreading time given by the data panel is 96.9 hours. That is, in about 4 days, the Rim 1 of the year that went to Europa for scientific research will be able to reach Europa Europa in Jupiter's orbit.

"Four days, is it so slow to arrive?." Sun Zhongyong said.

Chen Mengchuan looked at him and smiled helplessly: "Although this speed is not fast for what we expected, but for the spacecraft of NASA in the United States, this speed is already very against the sky." Do you know how long it took NASA's Voyager 2 to fly into the orbit of Jupiter? Their unmanned interstellar spacecraft at that time flew for two years before reaching the orbit of Jupiter. ”

"So long? If you say that, it's a bit against the sky. Sun Zhongyong nodded.

"But in my opinion, this speed is still slow, and we still need to be faster. This will help us to get to know Europa more quickly, which is also just a small springboard for us, after which we will explore further afield, such as flying out of the solar system. Chen Mengchuan said seriously.

Flying out of the solar system has always been in his plan, and it is very important. At the current rate, flying out of the solar system is not difficult, but it doesn't necessarily mean much. Only after reaching the speed of light can we truly step out of the solar system.

Faster than the speed of light......

How difficult.

The current speed is only 39,360 kilometers / 17.25 seconds, and the average speed per second is only 2,281.74 kilometers per second, while the speed of light is as high as 299792 kilometers, a difference of more than 131 times.

"We don't have to be presumptuous, Yumekawa, we haven't been moving forward all the time. One day, we'll do what you say we're going to do as fast as you say. Sun Zhongyong saw that Chen Mengchuan's eyes were a little complicated, so he opened his mouth to comfort him.

After Chen Mengchuan listened to his words, he nodded, and the topic of several people started chatting again, and they talked about many other topics.

After coming to Mars these days, Sun Zhongyong and others have slowly adapted to many differences on Mars.

Chen Mengchuan even prepared a lot of special gravitational mechas, so that everyone put on the gravitational mecha and actually stepped on Mars, feeling the gravity of the surface of Mars, as well as the barren Martian land.

Like everyone else, after the initial excitement, they returned to base not long after, because the whole of Mars looked like it was too desolate. Moreover, the Mars base Liuyan Palace chose the location of a medium-sized crater, and the surrounding terrain is basically the same.

Sun Zhongyong has been playing for a long time, he got more gravitational mecha authorization, flew to a very high air environment, looked down on the land of Mars, and even completed a trip around Mars, which made many people worry for a while.

After these days, Zhao Wanyu began to prepare for the return to Earth, and began to increase the speed of unloading, and the Tissot was loaded with too many materials needed for life and scientific research.

At the same time, she also prepared a lot of very special Martian gifts to bring back to Earth, such as a whole super large diamond weighing 2 tons......